Most bookmarked dev-tool sites get slower and more ad-heavy over time, or start gating basic features behind a signup. Quietbench is a small suite of the utilities I reach for most often - JSON formatter, regex tester, cron builder, WCAG contrast checker, and API request tester - built to stay fast, free, and signup-free. Everything runs entirely client-side in your browser. No accounts, no data sent to a server, no ads. Built with React, Vite, and TypeScript, deployed on Cloudflare Pages.

Hey everyone 👋 I built Quietbench because I had a handful of bookmarked utility sites - JSON formatter, regex tester, that kind of thing - that kept getting slower, more ad-heavy, or started gating basic features behind a signup over time. So I built my own small suite: JSON formatter with a tree view, a regex tester with live highlighting and plain-English explanations, a cron builder that shows your next 5 run times, a WCAG contrast checker, and a lightweight API request tester. Everything runs entirely in the browser - no accounts, no data sent anywhere, no ads. Built with React, Vite, and TypeScript, deployed on Cloudflare Pages. This is very much a solo side project, and I'd genuinely love feedback - especially anything that feels broken, confusing, or missing. What utility would you want added next?

the all-client-side approach is a really thoughtful choice, especially for tools like these where you don't want your test data leaving the machine. love seeing utility sites that respect that.

Quietbench

Free, no-signup dev tools that run entirely in your browser

Free, no-signup dev tools that run entirely in your browser