MP3 converter: audio and video to MP3
Convert audio files and the sound from videos to MP3 or WAV right in your browser. Drop in WAV, M4A, FLAC, OGG, AAC, WebM or MP4 files, pick the quality, and download the result. You can also trim the start and end, add fades and even out the volume. Files never leave your device, so it works for private recordings too.
Free · No sign-up
How to use it
- Choose or drop one or more audio or video files.
- Pick MP3 or WAV, the MP3 bitrate, channels and sample rate.
- Optionally trim, add fades or normalise the volume. Conversion runs again when you change a setting.
- Play the result to check it, then download each file or all of them as a ZIP.
Why use this tool
No upload
Conversion happens in your browser. Recordings, interviews and voice notes stay on your device.
Video to MP3
Extract the soundtrack from MP4, MOV and WebM videos and save it as MP3.
Choose the quality
From 64 kbps for voice to 320 kbps for music, with mono, stereo and sample rate options.
Trim and fade
Cut the start and end, and add a fade in or fade out for ringtones and clips.
Even volume
Normalise quiet recordings so the loudest moment sits just below full scale.
Batch convert
Convert many files at once and download them together as a ZIP.
Which MP3 bitrate should I use?
| Bitrate | Best for | Size per minute |
|---|---|---|
| 320 kbps | Music archive, DJ sets | about 2.4 MB |
| 192 kbps | Music for everyday listening | about 1.4 MB |
| 128 kbps | Podcasts, background music | about 0.96 MB |
| 96 kbps | Talk shows, audiobooks | about 0.72 MB |
| 64 kbps mono | Voice notes, lectures | about 0.48 MB |
Supported formats
The converter reads any format your browser can play. Chrome, Edge and Firefox read MP3, WAV, M4A, AAC, FLAC, OGG, OPUS and WebM, and the audio of MP4 and MOV videos. Safari reads most of them too, including Apple formats such as CAF and AIFF. WMA and AMR aren't supported by browsers.
Converting an MP3 to another MP3 at a higher bitrate doesn't improve the sound. Lost detail can't be restored, so pick the bitrate from the quality of the original.
MP3 or WAV?
- MP3 is compressed: about a tenth of the size, and it plays everywhere.
- WAV is uncompressed: perfect quality but large, good for editing.
- Use WAV when you'll edit the audio again, and MP3 for sharing and listening.
- Some phone and car systems prefer 44.1 kHz stereo MP3 at 128 to 320 kbps.
Privacy
Most online converters upload your file to a server. This one decodes and encodes the audio with your browser's own engine and the open-source LAME encoder, so the file never leaves your device. Very long files need a lot of memory, so convert recordings over an hour on a computer rather than a phone.
Frequently asked questions
How do I convert a video to MP3?
Drop the MP4, MOV or WebM file into the converter, keep MP3 selected and download the result. The sound track is extracted and saved as MP3.
Is this MP3 converter free and safe?
Yes. It's free, needs no account and doesn't upload your files, because the conversion runs in your browser.
How do I convert WAV to MP3?
Add the WAV file, choose a bitrate such as 192 kbps and download the MP3. It will be about a seventh of the size.
Can I convert M4A or iPhone voice memos to MP3?
Yes. M4A files from voice memos and iTunes work. Choose 64 or 96 kbps mono for voice to keep the files small.
Why does my file fail to convert?
Your browser couldn't read the audio. This happens with WMA, AMR, protected files from music stores, and some FLAC or OPUS files in older Safari. Try Chrome or Edge, or another format.
Can I cut a song or make a ringtone?
Yes. Open Trim, fade and volume, enter the start and end, add a short fade out and download the MP3.
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