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DefinitelyTyped

Organization

Public GitHub footprint of DefinitelyTyped

@DefinitelyTyped
View profile on GitHub

Types for the masses

22

Public repositories

52,959

Total stars

904

Followers

DefinitelyTyped is an organization on GitHub focused on providing high-quality TypeScript type definitions for a wide range of projects. It features several notable repositories, including DefinitelyTyped, tsd, and dt-mergebot, primarily utilizing TypeScript, JavaScript, PowerShell, and CSS. This diverse collection supports developers in enhancing their TypeScript applications.

Top languages

TypeScript 12JavaScript 6PowerShell 1CSS 1

Public repositories

DefinitelyTyped

51,271

The repository for high quality TypeScript type definitions.

TypeScript
Updated Jun 13, 2026

tsd

1,107

[DEPRECATED] TypeScript Definition manager for DefinitelyTyped

TypeScript
Updated Apr 22, 2026

definitelytyped.github.io

238

Website content for definitelytyped.org

JavaScript
Updated Feb 27, 2026

dt-mergebot

114

The bot which handles auto-merging your PRs

TypeScript
Updated Dec 25, 2025

typescript-directory

53

A directory of TypeScript tools and learning resources

Unknown Language
Updated Sep 11, 2024

dts-critic

45

Checks a new dts against the JavaScript sources and tells you what problems it has

TypeScript
Updated Sep 11, 2024

NugetAutomation

26

Automatically generate nuget packages for the DefinetlyTyped TypeScript definitions.

PowerShell
Updated Aug 30, 2024

grunt-tsd

16

Grunt plugin to automate TSD and TypeScript definition related tasks

JavaScript
Updated Aug 29, 2024

focus-dt

14

A simple command-line tool for running down PRs on DefinitelyTyped

TypeScript
Updated Feb 25, 2026

docs

12

DefinitelyTyped documentation-generator source + gh-pages

JavaScript
Updated May 8, 2024

dt-review-bot

11

No description provided for this repository.

TypeScript
Updated May 8, 2024

demo-typescript-node-minimal

10

Minimal demo showing how to use TypeScript with node.js/npm modules

TypeScript
Updated Aug 29, 2024

tsd-site

9

Source of the TSD website

CSS
Updated Aug 29, 2024

generator-deftyped

6

Yeoman generator for DefinitelyTyped typings - lets you quickly set up a typing directory with a minimal template.

TypeScript
Updated Oct 3, 2025

types-publisher-watchdog

6

Report how long DefinitelyTyped's types-publisher takes to publish packages to npm

JavaScript
Updated Jun 18, 2024

definition-header

5

DefinitelyTyped definition header utils

TypeScript
Updated Oct 3, 2025

definition-tester

5

DefinitelyTyped repository testing infrastructure

TypeScript
Updated May 8, 2024

dt-review-tool

3

No description provided for this repository.

TypeScript
Updated May 8, 2024

badges

3

Content for the DefinitelyTyped badges

Unknown Language
Updated May 19, 2022

dtslint-runner

2

ℹ️ This repo has moved:

TypeScript
Updated Aug 29, 2024

typescript-bot-watchdog

2

Watch typescript-bot for recent activity on DefinitelyTyped

JavaScript
Updated Jun 18, 2024

dt-retag

1

This repo has moved:

JavaScript
Updated Jan 28, 2023

Frequently asked questions

What does DefinitelyTyped build on GitHub?

DefinitelyTyped builds TypeScript type definitions for various JavaScript libraries. The main repository, DefinitelyTyped, serves as the core hub for these definitions, ensuring developers can easily access and integrate type information into their projects.

Which programming languages does DefinitelyTyped use?

DefinitelyTyped primarily uses TypeScript and JavaScript for its repositories. Additionally, PowerShell and CSS are also utilized, particularly in tools and resources that support TypeScript development and type definition management.

Are DefinitelyTyped's repositories public?

Yes, all of DefinitelyTyped's repositories are public on GitHub. This openness allows developers to contribute, access type definitions, and collaborate on improving the quality of TypeScript support across various libraries.

Is this exposure intended?

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