diff --git a/convert-source-map/convert-source-map-tests.ts b/convert-source-map/convert-source-map-tests.ts
new file mode 100644
index 0000000000..a89cfb7127
--- /dev/null
+++ b/convert-source-map/convert-source-map-tests.ts
@@ -0,0 +1,13 @@
+import convert = require("convert-source-map");
+
+var json = convert
+	.fromComment('//@ sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZm9vLmpzIiwic291cmNlcyI6WyJjb25zb2xlLmxvZyhcImhpXCIpOyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')
+	.toJSON();
+
+var modified = convert
+	.fromComment('//@ sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZm9vLmpzIiwic291cmNlcyI6WyJjb25zb2xlLmxvZyhcImhpXCIpOyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSIsInNvdXJjZVJvb3QiOiIvIn0=')
+	.setProperty('sources', ['CONSOLE.LOG("HI");'])
+	.toJSON();
+
+console.log(json);
+console.log(modified);
\ No newline at end of file
diff --git a/convert-source-map/convert-source-map.d.ts b/convert-source-map/convert-source-map.d.ts
new file mode 100644
index 0000000000..6034d13f7e
--- /dev/null
+++ b/convert-source-map/convert-source-map.d.ts
@@ -0,0 +1,27 @@
+// Type definitions for convert-source-map
+// Project: https://github.com/thlorenz/convert-source-map
+// Definitions by: Andrew Gaspar <https://github.com/AndrewGaspar/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "convert-source-map" {
+	export interface SourceMapConverter {
+		toObject(): any;
+		toJSON(space?): string;
+		toBase64(): string;
+		toComment(): string;
+
+		addProperty(key, value): SourceMapConverter;
+		setProperty(key, value): SourceMapConverter;
+
+		getProperty(key): any;
+	}
+
+	export function removeComments(src): string;
+	export var commentRegex: RegExp;
+
+	export function fromObject(obj): SourceMapConverter;
+	export function fromJSON(json: string): SourceMapConverter;
+	export function fromBase64(base64: string): SourceMapConverter;
+	export function fromComment(comment: string): SourceMapConverter;
+	export function fromSource(source: string): SourceMapConverter;
+}
\ No newline at end of file