What is this video converter?

A client-side video converter powered by FFmpeg WebAssembly. It transcodes, compresses, and extracts metadata from video files entirely in your browser — no files are uploaded to any server.

Supported formats

• MP4 — H.264/H.265 container, widely compatible
• WebM — VP8/VP9 with Opus audio, optimized for web
• MKV — Matroska container supporting virtually any codec
• MOV — Apple QuickTime format

How to use this tool

• Drag & drop a video file or click to browse
• View extracted metadata including codec, resolution, bitrate, and duration
• Choose an output format and adjust compression settings
• Download the converted file directly from the browser

Common use cases

• Converting screen recordings to web-friendly MP4 or WebM
• Compressing large video files before sharing or uploading
• Extracting video metadata without installing desktop tools
• Converting between container formats for compatibility

Acknowledgements

Video metadata extraction is powered by mediabunny, an open-source media probe library that runs entirely in the browser.