ZTools
484 free privacy-first tools — web, Android & extension
What is ZTools?
484 free, privacy-first tools in one place. Text formatters, JSON tools, color pickers, calculators, converters, generators, image tools, and more — across 17 categories. Everything runs client-side. Your data never leaves your browser. No account needed. Features: smart search, favorites, collections, presets, themes, cloud sync, and a community-driven Product Finder. Available on web, Android (Play Store), and as a Chrome/Firefox browser extension. Built with React 19 & TypeScript.
From the website
ZTools — 580 Free Online Tools for Developers, Creators & Marketers
580+ free online tools for text, images, PDFs, code, data, SEO, finance, health, and design. No sign-up required. 100% client-side processing — your data never leaves your device. Available on Web, Android & iOS.
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