Last time this launched here it was seven tools. It's 978 now - every page rewritten with real use cases, the errors people actually hit, and FAQs; 53 with long-form worked examples; plus 69 technical guides. And I measured 28 popular online tools to see which upload what you paste: 2 of 15 paste tools did, 3 of 5 file tools did. ZeroServer has no backend to send anything to. Free, no signup, no ad network.

Stop pasting sensitive JSON, JWTs, and API keys into random websites with unknown backends. ZeroServer is a suite of developer utilities built with a strict "Zero Server" architecture. Everything happens 100% locally in your browser’s DOM using native APIs. No data ever leaves your device. ✅ 100% Private: No backend, no tracking, no logs. ✅ Developer First: Built with Next.js 15 and Tailwind v4. ✅ Essential Tools: JSON/XML/JWT... Built for developers who value privacy as much as productivity.