Utils.live – 700 free developer tools that run in the browser
700 tools in a static site, but CyberChef and browser DevTools already do this.

Yet another dev tools collection when CyberChef and browser DevTools already exist.
Web developers needing quick utilities
CyberChef · Browser DevTools · ConvertCSV
700 tools in a static site, but CyberChef and browser DevTools already do this.
Everything runs in the browser with no tracking or server calls, and the site bundles genuinely handy AI-specific utilities — LLM Token Counter, AI Model Comparison (pricing/context windows), AI Cost Estimator and an MCP server directory — so you don't need five tabs open. It's a pragmatic, privacy-minded toolbelt rather than a breakthrough: most tools are standard utilities, but the curated, offline-first collection is where the product earns its keep.
Every tool here exists in browser DevTools or CyberChef with more features.
Site returns 502 error on launch day, and the tools are already in browser DevTools.
117 utilities, 530 auto-generated SEO pages, and an explicit monetization plan (2,561 ad slots) make this a pragmatic productized repo for someone who wants fast ROI or a learning-grade production app. The author clearly prioritized SEO and privacy (several client-only tools like JWT decoders), and shipping it as a saleable bundle is honest — but the concept itself is crowded, so its appeal is mostly to people who want turnkey code or examples, not novelty.
Nice, no-friction collection — everything runs in the browser with zero signup and a clear grid of tools like JSON formatter, regex tester, JWT decoder and timestamp converter. Useful for quick one-off tasks and privacy-minded users, but there’s nothing here that CyberChef, DevTools extensions, or dozens of other static tool bundles don’t already do better (no chaining, no advanced features, just standalone widgets).