diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22f1f2f..2412970 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file. This librar
 ## [Unreleased]
 ### Added
 - Added `h3GetFaces` binding (#54)
+- Generate TypeScript definition file from jsdoc comments. (#55)
 ### Changed
 - Updated the core library to v3.5.0 (#52, #54)
 
diff --git a/README.md b/README.md
index c6a5aff..5db36a5 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,7 @@ const coordinates = h3.h3SetToMultiPolygon(hexagons, true);
     * [.getRes0Indexes()](#module_h3.getRes0Indexes) ⇒ <code>Array.&lt;H3Index&gt;</code>
     * [.degsToRads(deg)](#module_h3.degsToRads) ⇒ <code>Number</code>
     * [.radsToDegs(rad)](#module_h3.radsToDegs) ⇒ <code>Number</code>
+    * [.H3Index](#module_h3.H3Index) : <code>string</code>
 
 
 * * *
@@ -711,6 +712,14 @@ Convert radians to degrees
 | rad | <code>Number</code> | Value in radians |
 
 
+* * *
+
+<a name="module_h3.H3Index"></a>
+
+### h3.H3Index : <code>string</code>
+64-bit hexidecimal string representation of an H3 index
+
+
 * * *
 
 
diff --git a/lib/h3core.js b/lib/h3core.js
index 52b5fcd..f270e9d 100644
--- a/lib/h3core.js
+++ b/lib/h3core.js
@@ -21,6 +21,12 @@
 import C from '../out/libh3';
 import BINDINGS from './bindings';
 
+/**
+ * 64-bit hexidecimal string representation of an H3 index
+ * @static
+ * @typedef {string} H3Index
+ */
+
 const H3 = {};
 
 // Create the bound functions themselves
diff --git a/package.json b/package.json
index b7df177..36de5da 100644
--- a/package.json
+++ b/package.json
@@ -23,17 +23,19 @@
   "unpkg": "dist/h3-js.umd.js",
   "module": "dist/h3-js.es.js",
   "es2015": "dist/h3-js.es.js",
+  "types": "dist/types.d.ts",
   "source": "lib/h3core.js",
   "scripts": {
     "build-update-h3": "bash scripts/update-h3.sh",
     "build-emscripten": "yarn build-update-h3 && yarn docker-emscripten",
     "build-docs": "jsdoc2md --global-index-format grouped --partial doc-files/scope.hbs --helper ./doc-files/insert-version.js --separators --template doc-files/README.tmpl.md lib/h3core.js > README.md",
+    "build-tsd": "jsdoc -t node_modules/tsd-jsdoc/dist -d console lib/h3core.js | sed 's/\"h3\"/\"h3-js\"/g' > dist/types.d.ts",
     "bundle-umd": "microbundle --name h3 --format=umd",
     "bundle-cjs": "microbundle --format=cjs --no-compress",
     "bundle-es": "microbundle --format=es --no-compress",
     "bundle-cjs-browser": "microbundle -o dist/browser --format=cjs --no-compress --alias ../out/libh3=$(printf '%q' \"$PWD\")/dist/libh3-browser",
     "bundle-es-browser": "microbundle -o dist/browser --format=es --no-compress --alias ../out/libh3=$(printf '%q' \"$PWD\")/dist/libh3-browser",
-    "dist": "yarn dist-clean && yarn docker-emscripten-browser && yarn bundle-umd && yarn bundle-cjs && yarn bundle-cjs-browser && yarn bundle-es && yarn bundle-es-browser",
+    "dist": "yarn dist-clean && yarn docker-emscripten-browser && yarn bundle-umd && yarn bundle-cjs && yarn bundle-cjs-browser && yarn bundle-es && yarn bundle-es-browser && yarn build-tsd",
     "dist-clean": "rm -rf dist",
     "rollup-test": "rollup test/index.js --file dist/test.js --sourcemap --format=cjs --external=tape,fs,path",
     "rollup-bindings": "rollup build/print-bindings.js --file dist/print-bindings.js --format cjs",
@@ -75,7 +77,8 @@
     "nyc": "^14.1.1",
     "prettier": "^1.12.1",
     "rollup": "^1.7.0",
-    "tape": "^4.8.0"
+    "tape": "^4.8.0",
+    "tsd-jsdoc": "^2.3.1"
   },
   "engines": {
     "node": ">=4",
diff --git a/yarn.lock b/yarn.lock
index 1df9485..23b70cf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6699,6 +6699,13 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
+tsd-jsdoc@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/tsd-jsdoc/-/tsd-jsdoc-2.3.1.tgz#71e8507326de3ac730a5227206a0e49325d24708"
+  integrity sha512-zrgOVp4TXRYpBBiPa/fXOInlgijKlj4eCMvs1W/s2ssrZs+hYqLKGwpjDZ5trZK2E3XJoh1+JTUbvqhAK30oZg==
+  dependencies:
+    typescript "^3.2.1"
+
 tslib@1.9.3, tslib@^1.9.0:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
@@ -6729,6 +6736,11 @@ typescript@>=2.8.3:
   version "3.3.4000"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.4000.tgz#76b0f89cfdbf97827e1112d64f283f1151d6adf0"
 
+typescript@^3.2.1:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
+  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
+
 typical@^2.4.2, typical@^2.6.0, typical@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/typical/-/typical-2.6.1.tgz#5c080e5d661cbbe38259d2e70a3c7253e873881d"