MKV is a common format for OBS screen and stream recordings and many downloaded videos. Most phones and players can't open it, and the files are large. This saves the audio as an MP3, converted on your own device so the video never leaves it.
Your file never leaves your device. Nothing is uploaded.
Drop an audio or video file here
Drop an .mkv up to 500MB. Nothing is uploaded.
Conversion runs on FFmpeg, compiled to WebAssembly, inside this browser tab. Licences and source
The first one. In OBS that is usually the mixed track of everything you heard; if you recorded your microphone on a separate track, re-export with that track first.
Nowhere. The converter runs inside your browser tab, so the file is read and converted on your own device and saved straight back to it. It is never uploaded to Wave or anyone else, and we never see its name or contents.
The browser can't safely hold more than that. Split it into parts with a video editor (newer OBS versions can also split recordings automatically by time or size), then convert each part.
Yes. Convert to MP3, then click "Transcribe this file for free": the MP3 goes to the free Wave AI transcription tool for a transcript with speaker labels and a summary.
Related: Free Audio Converter That Never Uploads Your File · Free audio transcription · Free YouTube Transcript Generator
Product
Use Cases
Compare
All rights reserved
Made with love in New York City