Stop uploading sensitive files to random servers. JW Tool Box is a suite of 40+ privacy-first utilities that run 100% in your browser using WebAssembly. 🚀 What's inside: • PDF Tools (Merge, Split, Compress) • Image Converters (HEIC to JPG) • Dev Tools (JSON, Base64, Regex) • Financial Calculators ✨ Why us? • No Server Uploads (Client-side only) • No Login / No Paywalls • Blazing fast PWA • Available in English, Spanish & Chinese
No reviews yetBe the first to leave a review for JW Tool Box
Maker
📌
Hey Product Hunt! 👋
I’m the solo maker behind JW Tool Box.
I built this project out of personal frustration. Like many of you, I was tired of Googling for a simple “PDF merger” or “JSON formatter” only to end up on sites stuffed with aggressive ads, paywalls, tracking scripts, or “Sign up to download” pop-ups. The web felt cluttered and greedy.
So, I set out to build the antidote: a clean, privacy-first suite of tools that just works.
No logins. No uploads to unknown servers. No nonsense.
💡 Fun fact: This project was mostly built using what I call “Vibe Coding.” I leaned heavily on AI coding assistants to accelerate development—so I could focus on the things that really matter: UX, performance, and privacy.
I’m actively expanding the library, so please let me know if there are any small tools you’d love to see added. Your feedback means a lot—thank you for checking out JW Tool Box! 🚀✨