Hakotools

25+ free browser tools — no install, no upload, all local

Web App Productivityローンチ 2026年7月19日

Hakotools とは？

Hakotools is a collection of 25+ free web tools that run entirely in your browser. No installation, no sign-up, no data uploaded to any server. Tools include image compression, PDF merge/split, salary calculator, investment simulator, roulette, and more. All processing happens on your device — your files never leave your browser. Built with Astro + React, hosted on Cloudflare Pages.

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