TOOL · 17 · Convert

Audio / Video Converter

Convert MP4, WebM, MP3 and WAV right in your browser.

Runs in your browser after a one-time model download. Your files stay on your device.

First run downloads ffmpeg (~30 MB) over the network. Big files can take minutes — keep the tab open.

Drop files here or click to browse

One audio or video file

No signup · No watermark · Files never leave your device · Up to ~300 MB recommended

How it works

Step · 01
Drop an audio or video file. Common formats like MP4, MOV, WebM, MP3 and WAV work.
Step · 02
ffmpeg.wasm runs the conversion in your browser — no files uploaded to a server.
Step · 03
Progress updates as it works, then the converted file downloads.

Is this tool really free?: Yes. Every tool on EasyFileMagic is 100% free with no signup, no watermarks, no page limits, and no software to install.
Are my files uploaded to a server?: No. Files are processed directly in your browser using JavaScript and WebAssembly. Nothing is uploaded to our servers, so your documents never leave your device.
Does it work on mobile?: Yes. The tools run in any modern browser on desktop, tablet, or mobile (Chrome, Edge, Safari, Firefox). Very large files may be slower on low-end phones.

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