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NexusTools is a collection of 39 free developer tools that run entirely in your browser. No sign-ups, no data collection, no uploads everything is processed client-side
Tools include: JSON/SQL/YAML formatters, color converters, regex tester, JWT decoder/generator, password generator, QR codes, image compressor, CSS visual generators, LLM token counter, CIDR calculator, and more. Built with Next.js 15, TypeScript, and Tailwind CSS. Available in English, Spanish, and Portuguese. Open source (MIT)
NexusToolsFree dev tools that run 100% in your browser
Ricardo Rojasleft a comment
Hey everyone! I built NexusTools because I was tired of dev tools that: - Require an account for something that should be a simple utility - Upload your data to their servers - Put basic features behind paywalls Every tool on NexusTools processes data locally in your browser using Canvas API, Web Crypto, and native JavaScript. Near-zero npm dependencies — custom parsers for SQL, markdown, YAML,...
NexusToolsFree dev tools that run 100% in your browser