Audio converter

Converts between MP3, WAV, OGG and M4A — and accepts a video file too, taking its soundtrack. Everything is decoded and re-encoded on your own machine.

This tool runs entirely in your browser — nothing you type or open here is ever uploaded. You can disconnect from the internet after the page loads and it still works.

Drop files here or click to choose

One audio or video file

up to 400 MB

Video work happens on your own processor, so it is slower here than in a native app — expect roughly real time, and the engine downloads once per visit (about 31 MB). Nothing is uploaded, which is the trade.

🎬

Making a clip for TikTok, Reels or Shorts?

PostCut is the desktop app for exactly that: step frame by frame, cut precisely, crop to the platform's shape with safe-zone guides, blur what shouldn't be seen, and export at the exact delivery size — or fit under Discord's 10 MB cap. All on your machine, nothing uploaded. See what PostCut does →

Get it from the Microsoft Store

Audio converter

Drop files here or click to choose

Making a clip for TikTok, Reels or Shorts?

More video & audio tools

🎬 Compress video

✂️ Trim video

🎵 Video to MP3

🎞️ Video to GIF

🔇 Mute video

📉 Resize video