At a glance
- Cost
- 100% free, no account
- Converts from
- WAV, M4A/AAC, FLAC, OGG, Opus, WebM, MP4, MOV and others
- Converts to
- MP3 at 96–320 kbps, stereo or mono
- Bulk
- Convert a whole batch, download as ZIP
- Privacy
- Nothing is uploaded
Converting to MP3
- Drop your files in. Mix and match formats. Each file gets its own row and status.
- Choose a bitrate. 192 kbps suits most music, 320 kbps is the MP3 maximum, and 96–128 kbps is plenty for speech.
- Convert. Files are processed one after another, and each shows its new size when done.
- Download individually, or everything at once as a ZIP.
Formats you can convert
Lossless audio
WAV, FLAC, AIFF: big studio and CD-rip files that are easy to shrink.
Compressed audio
M4A/AAC (iPhone voice memos, iTunes), OGG Vorbis, OPUS (voice messages), WebM.
Video files
MP4, MOV and WebM. The soundtrack is extracted and saved as MP3.
Support depends on your browser's built-in decoders. Chrome and Edge handle the widest range. Copy-protected (DRM) files can't be converted by any tool.
Picking the right bitrate
| Use | Suggested setting | Size per minute (stereo) |
|---|---|---|
| Voice notes, lectures, audiobooks | 96–128 kbps, or mono | 0.7–1 MB |
| Everyday music listening | 192 kbps | ≈ 1.4 MB |
| Critical listening, DJ sets | 256–320 kbps | 1.9–2.4 MB |
Converting a low-quality file at a high bitrate only makes it larger. The encoder can't restore detail that's already been lost.
Why MP3 is still the safe choice
Newer codecs exist, but MP3 remains the format that everything plays: old car stereos, smart TVs, set-top boxes, website upload forms, podcast hosts and nearly every app. When you need a file to simply work, MP3 is the answer.
Common questions
Can I convert a YouTube or social video file to MP3?
If you have the video file saved on your device (MP4, MOV or WebM), yes. The converter can't download videos from websites.
How many files can I convert at once?
As many as you like. They're processed one after another to keep your device responsive.
Will song titles and cover art be kept?
No. The MP3 contains only the audio, so add tags afterwards in your music app if you need them.
Is anything uploaded?
No. Decoding and MP3 encoding both happen in your browser.