I built a document converter that never uploads your files

Every time you use an online PDF converter, your file travels to a server somewhere — processed by a company you don't know, stored temporarily on hardware you don't control. For a random meme? Fine. For a payslip, a contract, or a medical document? That's a real privacy problem. What I built ConvertiZen is a document converter that runs 100% in the browser using WebAssembly and modern JS APIs. Your file never leaves your device. Ever. Verify it yourself: open DevTools > Network tab > run a conversion. Zero outgoing requests containing your file data. What it supports 40+ format pairs: PDF ↔ Word, JPG, PNG, Text, HTML, Markdown Excel ↔ CSV, JSON, HTML Images: JPG ↔ PNG ↔ WebP, GIF/BMP → PDF JSON ↔ CSV, Markdown ↔ HTML, XML → JSON How it works PDF.js for PDF parsing docx library for Word generation SheetJS for Excel/CSV Canvas API for image conversions Everything client-side — no server required Pricing 3 free conversions/day, no account needed. Beyond that: €0.69/conversion, €4.99 for a pack of 10, or €4.99/month for unlimited Premium. Feedback welcome What formats are missing? What would make you trust a browser-based tool over a server-based one? 👉 https://convertizen.netlify.app