MP3 Converter
Convert MP3 audio files to WAV, OGG, FLAC, M4A, AAC and Opus and 7 more formats — free, in batches, files up to 10 GB, with no sign-up and no watermark.
Drop your MP3 file
Choose the format you need
Download the result
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or drag & drop — audio or video files
Free · Unlimited · No sign-up · Max 10 GB
Your privacy is our mission. Most files are converted right in your browser and never leave your device. Only large files, or formats a browser cannot process, are sent to our server over an encrypted connection — they are never stored, never shared, and deleted as soon as your download is ready.
What Is an MP3 File?
MP3 is the most widely supported audio format there is: it cuts a recording to roughly a tenth of its CD size by removing sound most people cannot hear. If a device plays audio at all, it plays MP3. MP3 is a lossy format: it makes files small by discarding detail that is hard to notice. Converting it to another format cannot bring that detail back.
MP3 Facts
| Full name | MPEG-1 Audio Layer III |
|---|---|
| File extension | .mp3 |
| Type | Audio |
| How it stores data | Lossy compression |
| Created by | Fraunhofer Society / MPEG, 1993 |
| Best for | music and podcasts that must play on any device |
| Watch out | some detail is lost for good, most noticeably below 128 kbps |
| Opens with | every phone, computer, car stereo and media player |
How to Open an MP3 File
A .mp3 file opens with every phone, computer, car stereo and media player. If none of those is at hand — or the file has to go into a program, device or website that refuses MP3 — convert it: WAV, OGG and FLAC are the usual choices.
Convert MP3 to Another Format
Convert Other Formats to MP3
MP3 Compared
Frequently Asked Questions
What is an MP3 file?
MP3 is the most widely supported audio format there is: it cuts a recording to roughly a tenth of its CD size by removing sound most people cannot hear. If a device plays audio at all, it plays MP3.
How do I open a .mp3 file?
With every phone, computer, car stereo and media player. If your device or program does not accept it, convert the file to a format it does.
How do I convert an MP3 file?
Drop the file into the converter on this page, choose the target format — WAV, OGG, FLAC, M4A and AAC and others — and press Convert. It is free, there is no account and several files can be converted at once.
Is MP3 lossy or lossless?
MP3 is a lossy format: it makes files small by discarding detail that is hard to notice. Converting it to another format cannot bring that detail back.
What is MP3 good for, and what are its limits?
Best for: music and podcasts that must play on any device. Watch out: some detail is lost for good, most noticeably below 128 kbps.
Is the MP3 converter free, and how big can the files be?
It is free, with no account, no watermark and no daily limit. Files can be up to 10 GB each.
Which formats can be converted to MP3?
WAV, OGG, FLAC, M4A, AAC, ALAC, AIFF, AMR, AC3, AU, CAF and GSM and 16 more.