Free Online Media Converter

Convert video / audio between formats — no upload, no watermark, no sign up

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Convert Your Media

Choose a file, pick the format you want, tweak any options, then download the converted file

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🔒

100% Privacy
Friendly

🆓

Completely
Free To Use

💦

Zero
Watermarks

How It Works

100% Private, your file never leaves your browser. The conversion happens locally on your device using WebAssembly. Nothing is uploaded to our servers.

This tool runs FFmpeg, the industry‑standard media toolkit, compiled to WebAssembly so it runs entirely inside your browser. It converts between video formats (MP4, WebM, MOV, MKV, GIF) and audio formats (MP3, WAV, M4A, OGG, FLAC), no account, no watermark, no server queue.

The first time you convert, the tool downloads the media engine (~30MB) to your browser and caches it, so later conversions start instantly. Because the work happens on your own device, very large or long files may take longer on lower‑powered machines.

Want to convert, resize, watermark or generate media automatically at scale? The Bannerbear API automates it for you. Plug it into your app or no‑code workflow and process thousands of files on autopilot.