About LocalConvert
Free, fast, and private file conversion for everyone
Our Mission
We believe file conversion should be free, fast, and private. That's why we built LocalConvert - a powerful file converter that runs entirely in your browser. No servers, no uploads, no tracking. Just drop your files and convert.
Privacy First
Your files never leave your device. We can't see, store, or share your data.
Lightning Fast
WebAssembly-powered conversion runs at near-native speed.
Open Source
Built with open source tools. Transparent and community-driven.
How It Works
LocalConvert uses cutting-edge web technologies to process files directly in your browser:
- •WebAssembly (WASM) - Runs compiled FFmpeg and image processing libraries at near-native speed
- •Web Workers - Processes files in background threads without freezing your browser
- •Origin Private File System - Handles large files efficiently with streaming support
- •Progressive Web App - Install and use offline like a native application
Supported Formats
Images
JPG, PNG, WebP, AVIF, HEIC, GIF, TIFF, BMP, SVG, ICO, PSD
Videos
MP4, WebM, MOV, AVI, MKV, FLV, WMV, GIF
Audio
MP3, WAV, FLAC, AAC, OGG, M4A, WMA, OPUS