diff --git a/types/stream-chain/index.d.ts b/types/stream-chain/index.d.ts
new file mode 100644
index 0000000000..e893538c77
--- /dev/null
+++ b/types/stream-chain/index.d.ts
@@ -0,0 +1,30 @@
+// Type definitions for stream-chain 2.0
+// Project: https://github.com/uhop/stream-chain#readme
+// Definitions by: Eugene Lazutkin <https://github.com/uhop>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+import { Readable, Writable, Duplex, Transform, DuplexOptions } from 'stream';
+
+export = Chain;
+
+type TransformFunction = (chunk: any, encoding?: string) => any;
+
+type Stream = Readable | Writable | Duplex | Transform;
+type StreamItem = Stream | TransformFunction;
+
+declare class Chain extends Duplex {
+    constructor(fns: StreamItem[], options?: Chain.ChainOptions);
+
+    input: Stream;
+    output: Stream;
+    streams: Stream[];
+}
+
+declare namespace Chain {
+    interface ChainOptions extends DuplexOptions {
+        skipEvents?: boolean;
+    }
+
+    function chain(fns: StreamItem[], options?: ChainOptions): Chain;
+}
diff --git a/types/stream-chain/stream-chain-tests.ts b/types/stream-chain/stream-chain-tests.ts
new file mode 100644
index 0000000000..282b88c7da
--- /dev/null
+++ b/types/stream-chain/stream-chain-tests.ts
@@ -0,0 +1,160 @@
+import * as Chain from 'stream-chain';
+import { Readable, Writable, Transform } from 'stream';
+
+const streamFromArray = (array: number[]): Readable => {
+    let index = 0;
+    return new Readable({
+        objectMode: true,
+        read(): void {
+            this.push(index < array.length ? array[index++] : null);
+        }
+    });
+};
+
+const streamToArray = (array: number[]): Writable =>
+    new Writable({
+        objectMode: true,
+        write(chunk, encoding, callback) {
+            array.push(chunk);
+            callback(null);
+        }
+    });
+
+{
+    // generic function
+
+    const chain = new Chain([(x: number) => 2 * x]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // generator
+
+    const chain = new Chain([
+        // function*(x: number): IterableIterator<number> {
+        //     const n = +x;
+        //     yield 2 * n - 1;
+        //     return 2 * n;
+        // }
+    ]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // async function
+
+    const chain = new Chain([
+        // async (x: number) => Promise.resolve(x)
+    ]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // function that returns an array of values
+
+    const chain = new Chain([(x: number) => [x, x + 1]]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // chain of functions
+
+    const chain = new Chain([(x: number) => x * x, (x: number) => 2 * x + 1]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // Transform + a function
+
+    const chain = new Chain([
+        new Transform({
+            objectMode: true,
+            transform(x: number, _: string | undefined, callback: (error: Error | undefined, chunk: any) => void) {
+                callback(undefined, x * x);
+            }
+        }),
+        (x: number) => 2 * x + 1
+    ]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // factory
+
+    const chain = Chain.chain([(x: number) => 2 * x]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3])
+        .pipe(chain)
+        .pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // include Readable
+
+    const chain = new Chain([streamFromArray([1, 2, 3]), (x: number) => 2 * x]);
+    const out1: number[] = [];
+    const out2: number[] = [];
+
+    chain.pipe(streamToArray(out1));
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // include Writable
+
+    const out1: number[] = [];
+    const chain = new Chain([(x: number) => 2 * x], streamToArray(out1));
+    const out2: number[] = [];
+
+    streamFromArray([1, 2, 3]).pipe(chain);
+    chain.on('data', value => out2.push(+value));
+}
+
+{
+    // include Readable and Writable
+
+    const out1: number[] = [];
+    const chain = new Chain([streamFromArray([1, 2, 3]), (x: number) => 2 * x], streamToArray(out1));
+    const out2: number[] = [];
+
+    chain.on('data', value => out2.push(+value));
+}
diff --git a/types/stream-chain/tsconfig.json b/types/stream-chain/tsconfig.json
new file mode 100644
index 0000000000..65c7438077
--- /dev/null
+++ b/types/stream-chain/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true
+    },
+    "files": ["index.d.ts", "stream-chain-tests.ts"]
+}
diff --git a/types/stream-chain/tslint.json b/types/stream-chain/tslint.json
new file mode 100644
index 0000000000..4e88071852
--- /dev/null
+++ b/types/stream-chain/tslint.json
@@ -0,0 +1 @@
+{"extends": "dtslint/dt.json"}
diff --git a/types/stream-csv-as-json/AsObjects.d.ts b/types/stream-csv-as-json/AsObjects.d.ts
new file mode 100644
index 0000000000..8c0ab31ab6
--- /dev/null
+++ b/types/stream-csv-as-json/AsObjects.d.ts
@@ -0,0 +1,38 @@
+/// <reference types="node" />
+
+import { TransformOptions, Transform } from 'stream';
+import * as Chain from 'stream-chain';
+
+export = AsObjects;
+
+declare class AsObjects extends Transform {
+    constructor(options?: AsObjects.AsObjectOptions);
+}
+
+declare namespace AsObjects {
+    interface AsObjectOptions extends TransformOptions {
+        packValues?: boolean;
+        packStrings?: boolean;
+        streamValues?: boolean;
+        streamStrings?: boolean;
+        useValues?: boolean;
+        useStringValues?: boolean;
+        fieldPrefix?: string;
+    }
+
+    function make(options?: AsObjectOptions): AsObjects;
+
+    namespace make {
+        type Constructor = AsObjects;
+        const Constructor: typeof AsObjects;
+    }
+
+    function asObjects(options?: AsObjectOptions): AsObjects;
+
+    namespace asObjects {
+        type Constructor = AsObjects;
+        const Constructor: typeof AsObjects;
+    }
+
+    function withParser(options?: AsObjectOptions): Chain;
+}
diff --git a/types/stream-csv-as-json/Parser.d.ts b/types/stream-csv-as-json/Parser.d.ts
new file mode 100644
index 0000000000..1274765edd
--- /dev/null
+++ b/types/stream-csv-as-json/Parser.d.ts
@@ -0,0 +1,33 @@
+/// <reference types="node" />
+
+import { Transform, TransformOptions } from 'stream';
+
+export = Parser;
+
+declare class Parser extends Transform {
+    constructor(options?: Parser.ParserOptions);
+}
+
+declare namespace Parser {
+    interface ParserOptions extends TransformOptions {
+        packValues?: boolean;
+        packStrings?: boolean;
+        streamValues?: boolean;
+        streamStrings?: boolean;
+        separator?: string;
+    }
+
+    function make(options?: ParserOptions): Parser;
+
+    namespace make {
+        type Constructor = Parser;
+        const Constructor: typeof Parser;
+    }
+
+    function parser(options?: ParserOptions): Parser;
+
+    namespace parser {
+        type Constructor = Parser;
+        const Constructor: typeof Parser;
+    }
+}
diff --git a/types/stream-csv-as-json/Stringer.d.ts b/types/stream-csv-as-json/Stringer.d.ts
new file mode 100644
index 0000000000..52629f96b9
--- /dev/null
+++ b/types/stream-csv-as-json/Stringer.d.ts
@@ -0,0 +1,31 @@
+/// <reference types="node" />
+
+import { Transform, TransformOptions } from 'stream';
+
+export = Stringer;
+
+declare class Stringer extends Transform {
+    constructor(options?: Stringer.StringerOptions);
+}
+
+declare namespace Stringer {
+    interface StringerOptions extends TransformOptions {
+        useValues?: boolean;
+        useStringValues?: boolean;
+        separator?: string;
+    }
+
+    function make(options?: StringerOptions): Stringer;
+
+    namespace make {
+        type Constructor = Stringer;
+        const Constructor: typeof Stringer;
+    }
+
+    function stringer(options?: StringerOptions): Stringer;
+
+    namespace stringer {
+        type Constructor = Stringer;
+        const Constructor: typeof Stringer;
+    }
+}
diff --git a/types/stream-csv-as-json/index.d.ts b/types/stream-csv-as-json/index.d.ts
new file mode 100644
index 0000000000..1dca341577
--- /dev/null
+++ b/types/stream-csv-as-json/index.d.ts
@@ -0,0 +1,21 @@
+// Type definitions for stream-csv-as-json 1.0
+// Project: https://github.com/uhop/stream-csv-as-json#readme
+// Definitions by: Eugene Lazutkin <https://github.com/uhop>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import * as AsObjects from './AsObjects';
+import * as Parser from './Parser';
+import * as Stringer from './Stringer';
+
+export = make;
+
+declare function make(options?: Parser.ParserOptions): Parser;
+
+type ParserClass = Parser;
+type ParserType = typeof Parser;
+
+declare namespace make {
+    type Parser = ParserClass;
+    const Parser: ParserType;
+    function parser(options?: Parser.ParserOptions): Parser;
+}
diff --git a/types/stream-csv-as-json/stream-csv-as-json-tests.ts b/types/stream-csv-as-json/stream-csv-as-json-tests.ts
new file mode 100644
index 0000000000..6007d19205
--- /dev/null
+++ b/types/stream-csv-as-json/stream-csv-as-json-tests.ts
@@ -0,0 +1,68 @@
+import * as make from 'stream-csv-as-json';
+import * as Parser from 'stream-csv-as-json/Parser';
+import * as Stringer from 'stream-csv-as-json/Stringer';
+import * as AsObjects from 'stream-csv-as-json/AsObjects';
+
+const used = (array: any[]) => array.forEach(value => console.log(!!value));
+
+{
+    // creating parser with the main module
+
+    const p1 = make();
+    const p2 = new make.Parser();
+    const p3 = make.parser();
+
+    const p4 = make({});
+    const p5 = new make.Parser({});
+    const p6 = make.parser({});
+
+    const p7: make.Parser = make();
+    const p8: make.Parser = new make.Parser();
+    const p9: make.Parser = make.parser();
+
+    used([p1, p2, p3, p4, p5, p6, p7, p8, p9]);
+}
+
+{
+    // Parser tests
+
+    const p1: Parser = new Parser({ packValues: false });
+    const p2: Parser = Parser.make({ separator: '/' });
+    const p3: Parser = Parser.parser({ streamValues: false });
+    const p4: Parser.make.Constructor = Parser.make({ packValues: false, packStrings: true });
+    const p5: Parser.parser.Constructor = Parser.parser({ packValues: false, packStrings: true, streamStrings: false });
+
+    used([p1, p2, p3, p4, p5]);
+}
+
+{
+    // Stringer tests
+
+    const s1: Stringer = new Stringer();
+    const s2: Stringer = Stringer.make({ useValues: true });
+    const s3: Stringer = Stringer.stringer({ useStringValues: true });
+    const s4: Stringer.make.Constructor = Stringer.make();
+    const s5: Stringer.stringer.Constructor = Stringer.stringer();
+
+    used([s1, s2, s3, s4, s5]);
+}
+
+{
+    // StreamValues tests
+
+    const parser: Parser = new Parser();
+
+    const s1: AsObjects = new AsObjects();
+    const s2: AsObjects = AsObjects.make();
+    const s3: AsObjects = AsObjects.asObjects();
+    const s4: AsObjects.make.Constructor = AsObjects.make();
+    const s5: AsObjects.asObjects.Constructor = AsObjects.asObjects();
+
+    used([s1, s2, s3, s4, s5]);
+
+    parser.pipe(new AsObjects({ fieldPrefix: 'x' }));
+    parser.pipe(AsObjects.make({ useStringValues: true }));
+    parser.pipe(AsObjects.asObjects());
+
+    AsObjects.withParser();
+}
diff --git a/types/stream-csv-as-json/tsconfig.json b/types/stream-csv-as-json/tsconfig.json
new file mode 100644
index 0000000000..931caaa728
--- /dev/null
+++ b/types/stream-csv-as-json/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true
+    },
+    "files": ["index.d.ts", "stream-csv-as-json-tests.ts"]
+}
diff --git a/types/stream-csv-as-json/tslint.json b/types/stream-csv-as-json/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/stream-csv-as-json/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }
diff --git a/types/stream-json/Assembler.d.ts b/types/stream-json/Assembler.d.ts
new file mode 100644
index 0000000000..52282d7beb
--- /dev/null
+++ b/types/stream-json/Assembler.d.ts
@@ -0,0 +1,37 @@
+import { EventEmitter } from 'events';
+import { Readable } from 'stream';
+
+export = Assembler;
+
+interface Token {
+    name: string;
+    value?: string;
+}
+
+declare class Assembler extends EventEmitter {
+    constructor();
+
+    connectTo(stream: Readable): this;
+    consume(chunk: Token): this;
+    dropToLevel(level: number): this;
+
+    current: any;
+    key: string | null;
+    stack: Array<number | string | null>;
+    readonly done: boolean;
+
+    readonly depth: number;
+    readonly path: string;
+
+    // events
+    addListener(event: 'done', listener: (asm: Assembler) => void): this;
+    on(event: 'done', listener: (asm: Assembler) => void): this;
+    once(event: 'done', listener: (asm: Assembler) => void): this;
+    prependListener(event: 'done', listener: (asm: Assembler) => void): this;
+    prependOnceListener(event: 'done', listener: (asm: Assembler) => void): this;
+    removeListener(event: 'done', listener: (asm: Assembler) => void): this;
+}
+
+declare namespace Assembler {
+    function connectTo(stream: Readable): Assembler;
+}
diff --git a/types/stream-json/Emitter.d.ts b/types/stream-json/Emitter.d.ts
new file mode 100644
index 0000000000..7d0a3138c2
--- /dev/null
+++ b/types/stream-json/Emitter.d.ts
@@ -0,0 +1,23 @@
+import { Writable, WritableOptions } from 'stream';
+
+export = Emitter;
+
+declare class Emitter extends Writable {
+    constructor(options?: WritableOptions);
+}
+
+declare namespace Emitter {
+    function make(options?: WritableOptions): Emitter;
+
+    namespace make {
+        type Constructor = Emitter;
+        const Constructor: typeof Emitter;
+    }
+
+    function emitter(options?: WritableOptions): Emitter;
+
+    namespace emitter {
+        type Constructor = Emitter;
+        const Constructor: typeof Emitter;
+    }
+}
diff --git a/types/stream-json/Parser.d.ts b/types/stream-json/Parser.d.ts
new file mode 100644
index 0000000000..5fc689936e
--- /dev/null
+++ b/types/stream-json/Parser.d.ts
@@ -0,0 +1,35 @@
+import { Transform, TransformOptions } from 'stream';
+
+export = Parser;
+
+declare class Parser extends Transform {
+    constructor(options?: Parser.ParserOptions);
+}
+
+declare namespace Parser {
+    interface ParserOptions extends TransformOptions {
+        packValues?: boolean;
+        packKeys?: boolean;
+        packStrings?: boolean;
+        packNumbers?: boolean;
+        streamValues?: boolean;
+        streamKeys?: boolean;
+        streamStrings?: boolean;
+        streamNumbers?: boolean;
+        jsonStreaming?: boolean;
+    }
+
+    function make(options?: ParserOptions): Parser;
+
+    namespace make {
+        type Constructor = Parser;
+        const Constructor: typeof Parser;
+    }
+
+    function parser(options?: ParserOptions): Parser;
+
+    namespace parser {
+        type Constructor = Parser;
+        const Constructor: typeof Parser;
+    }
+}
diff --git a/types/stream-json/Stringer.d.ts b/types/stream-json/Stringer.d.ts
new file mode 100644
index 0000000000..6ada77a37a
--- /dev/null
+++ b/types/stream-json/Stringer.d.ts
@@ -0,0 +1,30 @@
+import { Transform, TransformOptions } from 'stream';
+
+export = Stringer;
+
+declare class Stringer extends Transform {
+    constructor(options?: Stringer.StringerOptions);
+}
+
+declare namespace Stringer {
+    interface StringerOptions extends TransformOptions {
+        useValues?: boolean;
+        useKeyValues?: boolean;
+        useStringValues?: boolean;
+        useNumberValues?: boolean;
+    }
+
+    function make(options?: StringerOptions): Stringer;
+
+    namespace make {
+        type Constructor = Stringer;
+        const Constructor: typeof Stringer;
+    }
+
+    function stringer(options?: StringerOptions): Stringer;
+
+    namespace stringer {
+        type Constructor = Stringer;
+        const Constructor: typeof Stringer;
+    }
+}
diff --git a/types/stream-json/filters/Filter.d.ts b/types/stream-json/filters/Filter.d.ts
new file mode 100644
index 0000000000..2a770925ca
--- /dev/null
+++ b/types/stream-json/filters/Filter.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as FilterBase from './FilterBase';
+
+export = Filter;
+
+declare class Filter extends FilterBase {
+    constructor(options: FilterBase.FilterOptions);
+}
+
+declare namespace Filter {
+    function make(options: FilterBase.FilterOptions): Filter;
+
+    namespace make {
+        type Constructor = Filter;
+        const Constructor: typeof Filter;
+    }
+
+    function filter(options: FilterBase.FilterOptions): Filter;
+
+    namespace filter {
+        type Constructor = Filter;
+        const Constructor: typeof Filter;
+    }
+
+    function withParser(options: FilterBase.FilterOptions): Chain;
+}
diff --git a/types/stream-json/filters/FilterBase.d.ts b/types/stream-json/filters/FilterBase.d.ts
new file mode 100644
index 0000000000..43296561d4
--- /dev/null
+++ b/types/stream-json/filters/FilterBase.d.ts
@@ -0,0 +1,29 @@
+import { Transform, TransformOptions } from 'stream';
+
+export = FilterBase;
+
+declare class FilterBase extends Transform {
+    constructor(options: FilterBase.FilterOptions);
+}
+
+declare namespace FilterBase {
+    type Stack = ReadonlyArray<number | string | null>;
+
+    interface Token {
+        readonly name: string;
+        readonly value?: ReadonlyArray<string | null | true | false>;
+    }
+
+    type FilterFunction = (stack: Stack, token: Token) => boolean;
+    type ReplacementFunction = (stack: Stack, token: Token) => Token[];
+
+    interface FilterOptions extends TransformOptions {
+        filter: string | RegExp | FilterFunction;
+        once?: boolean;
+        pathSeparator?: string;
+        streamValues?: boolean;
+        streamKeys?: boolean;
+        replacement?: ReadonlyArray<Token> | ReplacementFunction;
+        allowEmptyReplacement?: boolean;
+    }
+}
diff --git a/types/stream-json/filters/Ignore.d.ts b/types/stream-json/filters/Ignore.d.ts
new file mode 100644
index 0000000000..db805549d2
--- /dev/null
+++ b/types/stream-json/filters/Ignore.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as FilterBase from './FilterBase';
+
+export = Ignore;
+
+declare class Ignore extends FilterBase {
+    constructor(options: FilterBase.FilterOptions);
+}
+
+declare namespace Ignore {
+    function make(options: FilterBase.FilterOptions): Ignore;
+
+    namespace make {
+        type Constructor = Ignore;
+        const Constructor: typeof Ignore;
+    }
+
+    function ignore(options: FilterBase.FilterOptions): Ignore;
+
+    namespace ignore {
+        type Constructor = Ignore;
+        const Constructor: typeof Ignore;
+    }
+
+    function withParser(options: FilterBase.FilterOptions): Chain;
+}
diff --git a/types/stream-json/filters/Pick.d.ts b/types/stream-json/filters/Pick.d.ts
new file mode 100644
index 0000000000..f4504f20f5
--- /dev/null
+++ b/types/stream-json/filters/Pick.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as FilterBase from './FilterBase';
+
+export = Pick;
+
+declare class Pick extends FilterBase {
+    constructor(options: FilterBase.FilterOptions);
+}
+
+declare namespace Pick {
+    function make(options: FilterBase.FilterOptions): Pick;
+
+    namespace make {
+        type Constructor = Pick;
+        const Constructor: typeof Pick;
+    }
+
+    function pick(options: FilterBase.FilterOptions): Pick;
+
+    namespace pick {
+        type Constructor = Pick;
+        const Constructor: typeof Pick;
+    }
+
+    function withParser(options: FilterBase.FilterOptions): Chain;
+}
diff --git a/types/stream-json/filters/Replace.d.ts b/types/stream-json/filters/Replace.d.ts
new file mode 100644
index 0000000000..9f85b847f5
--- /dev/null
+++ b/types/stream-json/filters/Replace.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as FilterBase from './FilterBase';
+
+export = Replace;
+
+declare class Replace extends FilterBase {
+    constructor(options: FilterBase.FilterOptions);
+}
+
+declare namespace Replace {
+    function make(options: FilterBase.FilterOptions): Replace;
+
+    namespace make {
+        type Constructor = Replace;
+        const Constructor: typeof Replace;
+    }
+
+    function replace(options: FilterBase.FilterOptions): Replace;
+
+    namespace replace {
+        type Constructor = Replace;
+        const Constructor: typeof Replace;
+    }
+
+    function withParser(options: FilterBase.FilterOptions): Chain;
+}
diff --git a/types/stream-json/index.d.ts b/types/stream-json/index.d.ts
new file mode 100644
index 0000000000..9230408603
--- /dev/null
+++ b/types/stream-json/index.d.ts
@@ -0,0 +1,37 @@
+// Type definitions for stream-json 1.0
+// Project: http://github.com/uhop/stream-json
+// Definitions by: Eugene Lazutkin <https://github.com/uhop>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+import * as Assembler from './Assembler';
+import * as Emitter from './Emitter';
+import * as Parser from './Parser';
+import * as Stringer from './Stringer';
+
+import * as FilterBase from './filters/FilterBase';
+import * as Pick from './filters/Pick';
+import * as Replace from './filters/Replace';
+import * as Ignore from './filters/Ignore';
+import * as Filter from './filters/Filter';
+
+import * as StreamArray from './streamers/StreamArray';
+import * as StreamObject from './streamers/StreamObject';
+import * as StreamValues from './streamers/StreamValues';
+
+import * as emit from './utils/emit';
+import * as withParser from './utils/withParser';
+
+export = make;
+
+declare function make(options?: Parser.ParserOptions): Parser;
+
+type ParserClass = Parser;
+type ParserType = typeof Parser;
+
+declare namespace make {
+    type Parser = ParserClass;
+    const Parser: ParserType;
+    function parser(options?: Parser.ParserOptions): Parser;
+}
diff --git a/types/stream-json/stream-json-tests.ts b/types/stream-json/stream-json-tests.ts
new file mode 100644
index 0000000000..76e21071f1
--- /dev/null
+++ b/types/stream-json/stream-json-tests.ts
@@ -0,0 +1,329 @@
+import { Transform, TransformOptions } from 'stream';
+
+import * as make from 'stream-json';
+
+import * as Assembler from 'stream-json/Assembler';
+import * as Emitter from 'stream-json/Emitter';
+import * as Parser from 'stream-json/Parser';
+import * as Stringer from 'stream-json/Stringer';
+
+import * as FilterBase from 'stream-json/filters/FilterBase';
+import * as Pick from 'stream-json/filters/Pick';
+import * as Replace from 'stream-json/filters/Replace';
+import * as Ignore from 'stream-json/filters/Ignore';
+import * as Filter from 'stream-json/filters/Filter';
+
+import * as StreamArray from 'stream-json/streamers/StreamArray';
+import * as StreamObject from 'stream-json/streamers/StreamObject';
+import * as StreamValues from 'stream-json/streamers/StreamValues';
+
+import * as emit from 'stream-json/utils/emit';
+import * as withParser from 'stream-json/utils/withParser';
+
+const used = (array: any[]) => array.forEach(value => console.log(!!value));
+
+{
+    // creating parser with the main module
+
+    const p1 = make();
+    const p2 = new make.Parser();
+    const p3 = make.parser();
+
+    const p4 = make({});
+    const p5 = new make.Parser({});
+    const p6 = make.parser({});
+
+    const p7: make.Parser = make();
+    const p8: make.Parser = new make.Parser();
+    const p9: make.Parser = make.parser();
+
+    used([p1, p2, p3, p4, p5, p6, p7, p8, p9]);
+}
+
+{
+    // Assembler tests
+
+    const parser: Parser = new Parser({ streamValues: false });
+    const asm: Assembler = Assembler.connectTo(parser);
+
+    asm.consume({ name: 'startObject' });
+    asm.dropToLevel(0);
+
+    parser.on('keyValue', (value: string) =>
+        console.log(value, asm.key, asm.stack.length, asm.done, asm.depth, asm.path)
+    );
+    asm.on('done', (asm: Assembler) => console.log(JSON.stringify(asm.current)));
+}
+
+{
+    // Emitter tests
+
+    const parser: Parser = new Parser();
+    const e1: Emitter = new Emitter();
+    const e2: Emitter = Emitter.make({});
+    const e3: Emitter = Emitter.emitter();
+    const e4: Emitter.make.Constructor = Emitter.make({});
+    const e5: Emitter.emitter.Constructor = Emitter.emitter({});
+
+    parser.pipe(e1);
+    parser.pipe(e2);
+    parser.pipe(e3);
+    parser.pipe(e4);
+    parser.pipe(e5);
+
+    e1.on('startArray', () => console.log('array'));
+}
+
+{
+    // Parser tests
+
+    const p1: Parser = new Parser({ packValues: false });
+    const p2: Parser = Parser.make({ jsonStreaming: true });
+    const p3: Parser = Parser.parser({ streamValues: false });
+    const p4: Parser.make.Constructor = Parser.make({ packValues: false, packKeys: true });
+    const p5: Parser.parser.Constructor = Parser.parser({ packValues: false, packKeys: true, streamKeys: false });
+
+    used([p1, p2, p3, p4, p5]);
+}
+
+{
+    // Stringer tests
+
+    const s1: Stringer = new Stringer();
+    const s2: Stringer = Stringer.make({ useValues: true });
+    const s3: Stringer = Stringer.stringer({ useKeyValues: true });
+    const s4: Stringer.make.Constructor = Stringer.make();
+    const s5: Stringer.stringer.Constructor = Stringer.stringer();
+
+    used([s1, s2, s3, s4, s5]);
+}
+
+{
+    // Pick tests
+
+    const parser: Parser = new Parser();
+
+    const f1: Pick = new Pick({ filter: 'data' });
+    const f2: Pick = Pick.make({ filter: 'data' });
+    const f3: Pick = Pick.pick({ filter: 'data' });
+    const f4: Pick.make.Constructor = Pick.make({ filter: 'data' });
+    const f5: Pick.pick.Constructor = Pick.pick({ filter: 'data' });
+
+    used([f1, f2, f3, f4, f5]);
+
+    parser
+        .pipe(new Pick({ filter: 'data' }))
+        .pipe(Pick.make({ filter: /\bvalues\b/i }))
+        .pipe(Pick.pick({ filter: (stack: FilterBase.Stack, token: FilterBase.Token) => token.name === 'startArray' }));
+
+    Pick.withParser({ filter: 'data' });
+}
+
+{
+    // Replace tests
+
+    const parser: Parser = new Parser();
+
+    const f1: Replace = new Replace({ filter: 'data' });
+    const f2: Replace = Replace.make({ filter: 'data' });
+    const f3: Replace = Replace.replace({ filter: 'data' });
+    const f4: Replace.make.Constructor = Replace.make({ filter: 'data' });
+    const f5: Replace.replace.Constructor = Replace.replace({ filter: 'data' });
+
+    used([f1, f2, f3, f4, f5]);
+
+    parser
+        .pipe(new Replace({ filter: 'total', replacement: [{ name: 'trueValue' }] }))
+        .pipe(Replace.make({ filter: /\b_\w*\b/i, allowEmptyReplacement: true }))
+        .pipe(
+            Replace.replace({
+                filter: (stack: FilterBase.Stack, token: FilterBase.Token) => stack.length > 2,
+                replacement: (stack: FilterBase.Stack, token: FilterBase.Token) => [
+                    { name: token.name === 'startArray' ? 'trueValue' : 'falseValue' }
+                ]
+            })
+        );
+
+    Replace.withParser({ filter: '_meta' });
+}
+
+{
+    // Ignore tests
+
+    const parser: Parser = new Parser({ streamValues: false });
+
+    const f1: Ignore = new Ignore({ filter: 'data' });
+    const f2: Ignore = Ignore.make({ filter: 'data' });
+    const f3: Ignore = Ignore.ignore({ filter: 'data' });
+    const f4: Ignore.make.Constructor = Ignore.make({ filter: 'data' });
+    const f5: Ignore.ignore.Constructor = Ignore.ignore({ filter: 'data' });
+
+    used([f1, f2, f3, f4, f5]);
+
+    parser
+        .pipe(new Ignore({ filter: 'total' }))
+        .pipe(Ignore.make({ filter: /\b_\w*\b/i }))
+        .pipe(Ignore.ignore({ filter: (stack: FilterBase.Stack, token: FilterBase.Token) => stack.length > 2 }));
+
+    Ignore.withParser({ filter: '_meta' });
+}
+
+{
+    // Filter tests
+
+    const parser: Parser = new Parser({ streamValues: false });
+
+    const f1: Filter = new Filter({ filter: 'data' });
+    const f2: Filter = Filter.make({ filter: 'data' });
+    const f3: Filter = Filter.filter({ filter: 'data' });
+    const f4: Filter.make.Constructor = Filter.make({ filter: 'data' });
+    const f5: Filter.filter.Constructor = Filter.filter({ filter: 'data' });
+
+    used([f1, f2, f3, f4, f5]);
+
+    parser
+        .pipe(new Filter({ filter: 'total' }))
+        .pipe(Filter.make({ filter: /\b_\w*\b/i }))
+        .pipe(Filter.filter({ filter: (stack: FilterBase.Stack, token: FilterBase.Token) => stack.length > 2 }));
+
+    Filter.withParser({ filter: '_meta' });
+}
+
+{
+    // StreamArray tests
+
+    const parser: Parser = new Parser();
+
+    const s1: StreamArray = new StreamArray();
+    const s2: StreamArray = StreamArray.make();
+    const s3: StreamArray = StreamArray.streamArray();
+    const s4: StreamArray.make.Constructor = StreamArray.make();
+    const s5: StreamArray.streamArray.Constructor = StreamArray.streamArray();
+
+    used([s1, s2, s3, s4, s5]);
+
+    parser.pipe(
+        new StreamArray({
+            includeUndecided: true,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(
+        StreamArray.make({
+            includeUndecided: false,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(StreamArray.streamArray());
+
+    StreamArray.withParser();
+}
+
+{
+    // StreamObject tests
+
+    const parser: Parser = new Parser();
+
+    const s1: StreamObject = new StreamObject();
+    const s2: StreamObject = StreamObject.make();
+    const s3: StreamObject = StreamObject.streamObject();
+    const s4: StreamObject.make.Constructor = StreamObject.make();
+    const s5: StreamObject.streamObject.Constructor = StreamObject.streamObject();
+
+    used([s1, s2, s3, s4, s5]);
+
+    parser.pipe(
+        new StreamObject({
+            includeUndecided: true,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(
+        StreamObject.make({
+            includeUndecided: false,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(StreamObject.streamObject());
+
+    StreamObject.withParser();
+}
+
+{
+    // StreamValues tests
+
+    const parser: Parser = new Parser();
+
+    const s1: StreamValues = new StreamValues();
+    const s2: StreamValues = StreamValues.make();
+    const s3: StreamValues = StreamValues.streamValues();
+    const s4: StreamValues.make.Constructor = StreamValues.make();
+    const s5: StreamValues.streamValues.Constructor = StreamValues.streamValues();
+
+    used([s1, s2, s3, s4, s5]);
+
+    parser.pipe(
+        new StreamValues({
+            includeUndecided: true,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(
+        StreamValues.make({
+            includeUndecided: false,
+            objectFilter: (asm: Assembler) => {
+                if (asm.current) {
+                    if (asm.current.action === 'accept') return true;
+                    if (asm.current.action === 'reject') return false;
+                }
+            }
+        })
+    );
+    parser.pipe(StreamValues.streamValues());
+
+    StreamValues.withParser();
+}
+
+{
+    // emit() tests
+
+    const parser: Parser = emit(new Parser());
+    parser.on('keyValue', () => console.log('key'));
+}
+
+{
+    // withParser() tests
+
+    withParser(Pick.make, { filter: 'data' });
+    withParser(Pick.pick, { filter: 'data', packValues: false });
+
+    withParser(StreamArray.streamArray, { objectFilter: (asm: Assembler) => asm.current });
+    withParser(StreamArray.make, { objectFilter: (asm: Assembler) => asm.current, packValues: false });
+
+    withParser((options?: TransformOptions) => new Transform(options), { streamValues: false });
+}
diff --git a/types/stream-json/streamers/StreamArray.d.ts b/types/stream-json/streamers/StreamArray.d.ts
new file mode 100644
index 0000000000..4961e95bf8
--- /dev/null
+++ b/types/stream-json/streamers/StreamArray.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as StreamBase from './StreamBase';
+
+export = StreamArray;
+
+declare class StreamArray extends StreamBase {
+    constructor(options?: StreamBase.StreamOptions);
+}
+
+declare namespace StreamArray {
+    function make(options?: StreamBase.StreamOptions): StreamArray;
+
+    namespace make {
+        type Constructor = StreamArray;
+        const Constructor: typeof StreamArray;
+    }
+
+    function streamArray(options?: StreamBase.StreamOptions): StreamArray;
+
+    namespace streamArray {
+        type Constructor = StreamArray;
+        const Constructor: typeof StreamArray;
+    }
+
+    function withParser(options?: StreamBase.StreamOptions): Chain;
+}
diff --git a/types/stream-json/streamers/StreamBase.d.ts b/types/stream-json/streamers/StreamBase.d.ts
new file mode 100644
index 0000000000..641694efc4
--- /dev/null
+++ b/types/stream-json/streamers/StreamBase.d.ts
@@ -0,0 +1,17 @@
+import { Transform, TransformOptions } from 'stream';
+import * as Assembler from '../Assembler';
+
+export = StreamBase;
+
+declare class StreamBase extends Transform {
+    constructor(options?: StreamBase.StreamOptions);
+}
+
+declare namespace StreamBase {
+    type ObjectFilterFunction = (asm: Assembler) => boolean | undefined;
+
+    interface StreamOptions extends TransformOptions {
+        objectFilter?: ObjectFilterFunction;
+        includeUndecided?: boolean;
+    }
+}
diff --git a/types/stream-json/streamers/StreamObject.d.ts b/types/stream-json/streamers/StreamObject.d.ts
new file mode 100644
index 0000000000..efaeed75ad
--- /dev/null
+++ b/types/stream-json/streamers/StreamObject.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as StreamBase from './StreamBase';
+
+export = StreamObject;
+
+declare class StreamObject extends StreamBase {
+    constructor(options?: StreamBase.StreamOptions);
+}
+
+declare namespace StreamObject {
+    function make(options?: StreamBase.StreamOptions): StreamObject;
+
+    namespace make {
+        type Constructor = StreamObject;
+        const Constructor: typeof StreamObject;
+    }
+
+    function streamObject(options?: StreamBase.StreamOptions): StreamObject;
+
+    namespace streamObject {
+        type Constructor = StreamObject;
+        const Constructor: typeof StreamObject;
+    }
+
+    function withParser(options?: StreamBase.StreamOptions): Chain;
+}
diff --git a/types/stream-json/streamers/StreamValues.d.ts b/types/stream-json/streamers/StreamValues.d.ts
new file mode 100644
index 0000000000..2ffe1a0719
--- /dev/null
+++ b/types/stream-json/streamers/StreamValues.d.ts
@@ -0,0 +1,26 @@
+import * as Chain from 'stream-chain';
+import * as StreamBase from './StreamBase';
+
+export = StreamValues;
+
+declare class StreamValues extends StreamBase {
+    constructor(options?: StreamBase.StreamOptions);
+}
+
+declare namespace StreamValues {
+    function make(options?: StreamBase.StreamOptions): StreamValues;
+
+    namespace make {
+        type Constructor = StreamValues;
+        const Constructor: typeof StreamValues;
+    }
+
+    function streamValues(options?: StreamBase.StreamOptions): StreamValues;
+
+    namespace streamValues {
+        type Constructor = StreamValues;
+        const Constructor: typeof StreamValues;
+    }
+
+    function withParser(options?: StreamBase.StreamOptions): Chain;
+}
diff --git a/types/stream-json/tsconfig.json b/types/stream-json/tsconfig.json
new file mode 100644
index 0000000000..7bc52c45ec
--- /dev/null
+++ b/types/stream-json/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true
+    },
+    "files": ["index.d.ts", "stream-json-tests.ts"]
+}
diff --git a/types/stream-json/tslint.json b/types/stream-json/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/stream-json/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }
diff --git a/types/stream-json/utils/emit.d.ts b/types/stream-json/utils/emit.d.ts
new file mode 100644
index 0000000000..82b32f153c
--- /dev/null
+++ b/types/stream-json/utils/emit.d.ts
@@ -0,0 +1,7 @@
+import { Writable, Duplex, Transform } from 'stream';
+
+export = emit;
+
+declare function emit<Stream extends Writable | Duplex | Transform>(stream: Stream): Stream;
+
+declare namespace emit {}
diff --git a/types/stream-json/utils/withParser.d.ts b/types/stream-json/utils/withParser.d.ts
new file mode 100644
index 0000000000..ef509366df
--- /dev/null
+++ b/types/stream-json/utils/withParser.d.ts
@@ -0,0 +1,47 @@
+import { Writable, WritableOptions, Duplex, DuplexOptions, Transform, TransformOptions } from 'stream';
+import * as Chain from 'stream-chain';
+import * as Parser from '../Parser';
+import * as FilterBase from '../filters/FilterBase';
+import * as StreamBase from '../streamers/StreamBase';
+
+export = withParser;
+
+declare function withParser(
+    fn: (options: FilterBase.FilterOptions) => FilterBase,
+    options?: withParser.FilterOptions
+): Chain;
+
+declare function withParser(
+    fn: (options?: StreamBase.StreamOptions) => StreamBase,
+    options?: withParser.StreamOptions
+): Chain;
+
+declare function withParser(fn: (options?: TransformOptions) => Transform, options?: Parser.ParserOptions): Chain;
+
+declare namespace withParser {
+    interface FilterOptions extends FilterBase.FilterOptions {
+        // copied from ParserOptions
+        packValues?: boolean;
+        packKeys?: boolean;
+        packStrings?: boolean;
+        packNumbers?: boolean;
+        streamValues?: boolean;
+        streamKeys?: boolean;
+        streamStrings?: boolean;
+        streamNumbers?: boolean;
+        jsonStreaming?: boolean;
+    }
+
+    interface StreamOptions extends StreamBase.StreamOptions {
+        // copied from ParserOptions
+        packValues?: boolean;
+        packKeys?: boolean;
+        packStrings?: boolean;
+        packNumbers?: boolean;
+        streamValues?: boolean;
+        streamKeys?: boolean;
+        streamStrings?: boolean;
+        streamNumbers?: boolean;
+        jsonStreaming?: boolean;
+    }
+}