Zipizy
Everyday tools that never upload your files
PDF, image, text, QR and developer tools that run in the browser or as a Windows desktop app. Your files are processed on your own device.
- Role
- Author and maintainer
- Type
- Open source
- Year
- 2026
- Status
- v0.1.0 released · MIT
Overview
Most free file tools upload your documents to someone else's server. Zipizy does the work on your own device instead, in the browser or in a Windows desktop app.
It's my open-source project, MIT licensed, so the code is there to read.
Built with
- Astro
- JavaScript
- Web Workers
- Electron
What I built
- 01PDF merge, split, extract and password protection
- 02JPG, PNG and HEIC to PDF
- 03QR codes for links, Wi-Fi, contact cards and WhatsApp
- 04JSON format and compare, regex tester, UUIDs, hashes and Base64
- 05A searchable catalogue of 21 tools in five categories
- 06A Windows desktop app built with Electron
Engineering
Private by design
Files never leave the device: every tool runs locally, and most of them work offline in the desktop app.
Heavy work off the main thread
PDF and image processing runs in Web Workers, so the interface stays responsive.
A careful desktop shell
The Electron app keeps Node.js out of the pages.