diff --git a/types/atob-lite/atob-lite-tests.ts b/types/atob-lite/atob-lite-tests.ts
new file mode 100644
index 0000000000..0657815b54
--- /dev/null
+++ b/types/atob-lite/atob-lite-tests.ts
@@ -0,0 +1,3 @@
+import atob = require('atob-lite');
+
+atob('PDM=');
diff --git a/types/atob-lite/index.d.ts b/types/atob-lite/index.d.ts
new file mode 100644
index 0000000000..45dac78c3e
--- /dev/null
+++ b/types/atob-lite/index.d.ts
@@ -0,0 +1,9 @@
+// Type definitions for atob-lite 2.0
+// Project: https://github.com/hughsk/atob-lite
+// Definitions by: Gregor Martynus <https://github.com/gr2m>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+type DecodedData = string;
+declare function atob(encodedData: string): DecodedData;
+
+export = atob;
diff --git a/types/atob-lite/tsconfig.json b/types/atob-lite/tsconfig.json
new file mode 100644
index 0000000000..4e13b62294
--- /dev/null
+++ b/types/atob-lite/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "atob-lite-tests.ts"]
+}
diff --git a/types/atob-lite/tslint.json b/types/atob-lite/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/atob-lite/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }
diff --git a/types/btoa-lite/btoa-lite-tests.ts b/types/btoa-lite/btoa-lite-tests.ts
new file mode 100644
index 0000000000..0ba8fa892a
--- /dev/null
+++ b/types/btoa-lite/btoa-lite-tests.ts
@@ -0,0 +1,3 @@
+import btoa = require('btoa-lite');
+
+btoa('<3');
diff --git a/types/btoa-lite/index.d.ts b/types/btoa-lite/index.d.ts
new file mode 100644
index 0000000000..843b78413e
--- /dev/null
+++ b/types/btoa-lite/index.d.ts
@@ -0,0 +1,9 @@
+// Type definitions for btoa-lite 1.0
+// Project: https://github.com/hughsk/btoa-lite
+// Definitions by: Gregor Martynus <https://github.com/gr2m>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+type EncodedData = string;
+declare function btoa(decodedData: string): EncodedData;
+
+export = btoa;
diff --git a/types/btoa-lite/tsconfig.json b/types/btoa-lite/tsconfig.json
new file mode 100644
index 0000000000..b9a4efba38
--- /dev/null
+++ b/types/btoa-lite/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "btoa-lite-tests.ts"]
+}
diff --git a/types/btoa-lite/tslint.json b/types/btoa-lite/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/btoa-lite/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }