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Hakotools
25+ free browser tools — no install, no upload, all local
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.
Top comment
Hi Product Hunt! I built Hakotools as a solo project — a collection of 25+ browser-based tools that process everything locally on your device. Why local-only? I wanted tools I could trust with sensitive files (tax documents, personal photos) without worrying about uploads. The site is in Japanese for now, but most tools (image compress, PDF merge, roulette) work regardless of language. Tech: Astro + React islands, Cloudflare Pages (zero server cost), all processing via Canvas/Web APIs. Would love your feedback!
About Hakotools on Product Hunt
“25+ free browser tools — no install, no upload, all local”
Hakotools was submitted on Product Hunt and earned 16 upvotes and 11 comments, placing #101 on the daily leaderboard. 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.
On the analytics side, Hakotools competes within Web App and Productivity — topics that collectively have 779.7k followers on Product Hunt. The dashboard above tracks how Hakotools performed against the three products that launched closest to it on the same day.
Who hunted Hakotools?
Hakotools was hunted by Mnti. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Hakotools including community comment highlights and product details, visit the product overview.