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Top 23 TypeScript Devtool Projects
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Project mention: CLI over MCP: a small Chrome DevTools experiment in Copilot CLI | dev.to | 2026-06-10
I ran the same browser smoke task through two paths: direct Chrome DevTools MCP and a custom CLI skill around mcp2cli. In GitHub Copilot CLI with gpt-5.3-codex-medium, direct Chrome DevTools MCP added about 5k tokens of upfront context before the agent did any work. The runtime table is too small and too noisy to rank the tools. The useful question is where the agent pays to discover the browser-control surface.
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MSW
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openreplay
Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.
openreplay Description: Session replay, cobrowsing and product analytics What we like: Rich feature set, maintained, and excellent documentation What we don't like: Infrequent releases
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jsonhero-web
JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. đ. Built with đ by the Trigger.dev team.
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Project mention: Top 7 Puppeteer Alternatives for Web Automation and Testing (2025) | dev.to | 2025-08-05
WebDriverIO is a highly customizable and extensible Node.js testing tool built on the WebDriver protocol. It enables developers to perform both headless browser scripting and full UI testing across major browsers and devices. Its clean syntax, plugin system, and CI-friendly design make it a practical Puppeteer substitute for large-scale test suites. Unlike Puppeteer, which is Chromium-centric, WebDriverIO offers robust multi-browser automation using both WebDriver and DevTools protocols. It supports Chrome, Firefox, Safari, and even mobile testing through integrations like Appium.
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omni-tools
Self-hosted collection of powerful web-based tools for everyday tasks. No ads, no tracking, just fast, accessible utilities right from your browser!
Una bastante completa y variada: Omni Tools
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compodoc
:notebook_with_decorative_cover: The missing documentation tool for your Angular, Nest & Stencil application
Project mention: Building a Portfolio That Actually Demonstrates Enterprise Skills - Part 2 | dev.to | 2026-01-01Compodoc generates API documentation from TSDoc comments in the code. It targets core services and feature modules, producing documentation that includes dependency graphs, method signatures, and cross-references. The configuration excludes test and story files to keep the documentation focused on production code.
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Project mention: Closer to the Metal: Leaving Playwright for CDP | news.ycombinator.com | 2025-08-20
While that is the origin story of Playwright in 2020, that's no longer really true. Puppeteer is alive and well and arguably moving faster than Playwright these days because it's updated in lockstep with https://github.com/ChromeDevTools/devtools-frontend
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pezzo
đšī¸ Open-source, developer-first LLMOps platform designed to streamline prompt design, version management, instant delivery, collaboration, troubleshooting, observability and more.
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react-render-tracker
React render tracker â a tool to discover performance issues related to unintentional re-renders and unmounts
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devtools-x
Collection of offline first developer utilities available as non-electron desktop application. all in one place, cross-platform, 10MB app!
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If you want them to fix it:
1) Generate a profile performance with https://profiler.firefox.com/
2) Submit the link with your results to https://bugzilla.mozilla.org/
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dev3000
Captures your web app's complete development timeline - server logs, browser events, console messages, network requests, and automatic screenshots - in a unified, timestamped feed for AI debugging.
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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 Devtools discussion
TypeScript Devtools related posts
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Show HN: UIGen â Production UI from any API spec with full override control
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ReleaseJet â the release notes tool for repos with many customers
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Kubeli â A modern, beautiful Kubernetes management desktop application
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Show HN: StackPort â Open-source visual browser for LocalStack/AWS emulators
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Show HN: UIGen â Runtime front end for any OpenAPI spec with AI skills
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Show HN: A vdom-less framework that's local first
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Mobile Devtool for Agents and Humans
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A note from our sponsor - SaaSHub
www.saashub.com | 16 Jun 2026
Index
What are some of the best open-source Devtool projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | chrome-devtools-mcp | 43,517 |
| 2 | msw | 17,965 |
| 3 | theatre | 12,425 |
| 4 | openreplay | 12,094 |
| 5 | jsonhero-web | 10,747 |
| 6 | WebdriverIO | 9,798 |
| 7 | omni-tools | 9,647 |
| 8 | cosmos-js | 8,665 |
| 9 | Eclipse Che | 7,150 |
| 10 | openapi-devtools | 4,295 |
| 11 | compodoc | 4,110 |
| 12 | devtools-frontend | 3,933 |
| 13 | pezzo | 3,240 |
| 14 | lightproxy | 3,187 |
| 15 | react-render-tracker | 2,400 |
| 16 | repo2txt | 1,793 |
| 17 | rnx-kit | 1,722 |
| 18 | walletconnect-monorepo | 1,664 |
| 19 | devtools-x | 1,527 |
| 20 | apollo-client-devtools | 1,524 |
| 21 | profiler | 1,504 |
| 22 | dev3000 | 1,418 |
| 23 | e2b-cookbook | 1,362 |
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