How to convert audio
- Drop the audio or video file above.
- Choose the format, the quality and, if you like, mono and the sample rate.
- Convert and download.
Which format?
- WAV: lossless, the best for editing and for transcription software; large.
- Opus: the most efficient modern format: 32 kbps is clear speech, 96–128 kbps is transparent music. Plays in Chrome, Firefox, Edge, Android and recent Safari.
- AAC (.m4a): for Apple devices, podcasts hosts and YouTube; offered when your browser has an AAC encoder (Chrome and Edge on Windows and macOS, Safari).
Any format your browser plays can be converted, including the sound of a video (MP4, MOV, WebM): drop the video to extract its audio.
Questions
Can it convert to MP3?
Browsers have no MP3 encoder, so this free tool cannot write MP3 without sending your file to a server. Opus and AAC are smaller than MP3 at the same quality and play almost everywhere; WAV opens in every editor.
Is my file uploaded?
No. The conversion runs in your browser.
Can I extract the audio from a video?
Yes. Drop the MP4, MOV or WebM and choose the audio format.
Why is WAV so big?
WAV is uncompressed: about 10 MB a minute in stereo. Choose Opus or AAC for small files.