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Top 20 TypeScript Dev Tool Projects
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Playwright
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
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Project mention: Self-hosted dev sandboxes with preview URLs (Docker, Go, no K8s) | news.ycombinator.com | 2026-06-03
I'm using https://coder.com for all my development containers. I've got mine hooked up to a k8s cluster, but anything that you can provision with Terraform can be used (e.g. docker containers).
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Project mention: I built a GUI-powered Userscript manager for faster userscript creation! | dev.to | 2026-04-03
I used Docusaurus to host my documentation website. Although it used mdx (based on React) while the rest of my website was using Svelte, there just wasn't a solution that worked nearly as well out of the box. There I made some basic tutorials and wrote documentation for the API.
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reactotron
A desktop app for inspecting your React JS and React Native projects. macOS, Linux, and Windows.
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Project mention: Zustand: React State Management Without Providers or Reducers | dev.to | 2026-04-21
Redux DevTools browser extension
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pattern-craft
Professional-grade background patterns and gradients for your websites and apps. Easily copy and paste into your next project. Crafted with modern CSS and Tailwind for seamless integration.
They've reached the free plan limits for server function calls, but, why are function calls needed for a website of this kind? Looking through it, all of the content is static, there's no auth, and in fact, the entire list of patterns is stored in a single typescript file. Seems like there isn't a valid reason to use a server, using Next.js was the default way and they just went with it. Had they used Vite or Next.js's static export, they could've hosted their website for free in a static hosting site like Github Pages or Cloudflare Pages.
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Reactime 6.0: State Debugger for React
Developer tool for time travel debugging and performance monitoring in React applications.
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Project mention: Show HN: Openvid – open-source cinematic screen recorder and mockup editor | news.ycombinator.com | 2026-05-14
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BundleMon
A free open-source tool that helps you to monitor your bundle size on every commit and alerts you on changes.
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envilder
One secret mapping for local dev, CI/CD, and runtime. Envilder resolves cloud secrets from your own vaults without SaaS middlemen, duplicated config, or .env drift.
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ngx-dev-toolbar
A powerful development toolbar for Angular applications to improve your developer productivity directly in the browser.
Project mention: Ng-News 26/02: Frameworks in 2026, Competition among Frameworks, Angular Inside | dev.to | 2026-01-20View on GitHub
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terminal-guardian-mcp
Secure MCP server for safe AI-powered terminal access with risk analysis, sandboxing, logging, filesystem protection, and Docker/Git integrations.
Project mention: Preventing AI agents from executing destructive terminal commands | news.ycombinator.com | 2026-05-24
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Dev Tools discussion
TypeScript Dev Tools related posts
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Playwright로 하는 QA 자동화: 일정 지연 방지하기
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Preventing AI agents from executing destructive terminal commands
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Preventing AI agents from executing destructive terminal commands
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Building a Lightweight Web Scraping Toy with Bun’s Experimental `Bun.Webview`
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Playwright MCP v0.0.73: How to Configure Browser Paths via Environment Variables
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Create an MP4 video of a web page scrolling at a steady speed
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Headless Chromium at scale: four fixes for a fleet that kept eating RAM
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A note from our sponsor - SaaSHub
www.saashub.com | 11 Jun 2026
Index
What are some of the best open-source Dev Tool projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Playwright | 90,281 |
| 2 | Code-Server | 77,841 |
| 3 | Docusaurus | 65,129 |
| 4 | reactotron | 15,562 |
| 5 | redux-devtools | 14,350 |
| 6 | react-styleguidist | 11,250 |
| 7 | cosmos-js | 8,678 |
| 8 | pattern-craft | 2,973 |
| 9 | Reactime 6.0: State Debugger for React | 2,237 |
| 10 | vm0 | 1,121 |
| 11 | react-inspector | 850 |
| 12 | openvid | 444 |
| 13 | BundleMon | 169 |
| 14 | envilder | 137 |
| 15 | react-device-frameset | 105 |
| 16 | Jooks (Jest ❤ + Hooks 🤘🏻) | 83 |
| 17 | component-controls | 82 |
| 18 | story-tab | 56 |
| 19 | ngx-dev-toolbar | 40 |
| 20 | terminal-guardian-mcp | 1 |
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