Utulio

50 free client-side tools — no signup, no data collection

Productivity Developer Tools Financeローンチ 2026年6月9日

Utulio とは？

50 free browser-based tools for finance, developers, students and productivity. Everything runs client-side — no backend, no accounts, nothing sent to any server. Includes: loan calculators, debt payoff planner, JSON formatter, regex tester, JWT decoder, QR code generator, invoice PDF generator, and 43 more. Built with Next.js. Lighthouse 95+ across all pages. No ads until AdSense approval — currently completely clean. Feedback on missing tools very welcome.

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