About FileZone

FileZone is a file conversion tool that runs entirely in your browser. There is no server involved in the conversion process — your files are processed locally using WebAssembly, a binary instruction format that allows high-performance code to run inside the browser sandbox at near-native speed.

When you drop a file into FileZone, it is read directly from your filesystem into memory. The conversion happens using native libraries (ffmpeg, MuPDF, Tesseract, SheetJS) compiled to WebAssembly. The output file is assembled in memory and offered as a download. At no point does any data leave your device.

Why it is different

Zero uploads. Files never leave your browser. Nothing is sent to any server, ever.
Zero accounts. No sign-up, no email, no authentication required.
Zero tracking. No analytics, no cookies, no fingerprinting.

Supported conversions

→PDF → PNG (each page as image)
→PDF → Split (extract individual pages)
→PDF → Text
→Excel → CSV
→Excel → JSON
→CSV → Excel
→JPEG → PNG
→PNG → WebP
→Image → AVIF
→SVG → PNG
→Video → MP3
→Video → GIF
→ZIP → Extract

Languages

FileZone is available in seven languages: English, French (Français), German (Deutsch), Spanish (Español), Japanese (日本語), Chinese (中文), and Russian (Русский).

Technical stack

Framework: Next.js 15 (static export)
Runtime: WebAssembly
Video/audio: ffmpeg-core.wasm
PDF rendering: PDF.js
Spreadsheets: SheetJS
Hosting: Cloudflare Pages
Styling: Tailwind CSS v4

AI agent compatibility (WebMCP)

FileZone is the first file converter with native WebMCP support. AI agents can convert files directly in the browser, without uploads, without a server — files never leave the user's device.

Three exposed tools:

convert_file — converts a file to a target format
list_supported_formats — lists all available conversion pairs
get_file_info — analyses a file and returns its available conversions