Online Audio Converter
This versatile audio converter lets you convert WAV to MP3, OGG to MP3, MP3 to M4A, and even video to audio such as MP4 to MP3.
Ready to work on your audio?
Everything here runs in the browser, with no install and no sign-up.
What this audio converter does
11 output formats
Convert to MP3, OGG, M4A, AAC, FLAC, WAV, WMA, AIFF, OPUS, M4R, or MMF. MP3 is used unless you choose another format.
Video files work too
Upload an MP4, MOV, or AVI file and keep only the sound. It is the quick way to turn a video into an MP3.
Several files at once
Add a whole batch and convert it in one go. Nothing is installed, so the page works on Windows, macOS, Linux, Android, and iOS.
How to convert audio files
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Upload
Upload your audio or video file.
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Choose output format
Choose the audio format you want to convert your file to.
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Optional settings
Use the optional settings to further customize your file. (optional)
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Convert
Click "Start" to begin the audio conversion.
Which audio format should you convert to?
The audio converter writes 11 formats: AAC, AIFF, FLAC, M4A, M4R, MMF, MP3, OGG, OPUS, WAV, and WMA. MP3 is the safe default because it plays on almost every phone, car stereo, and media player.
Choose FLAC or WAV when the file has to keep every detail, for example a recording you still want to edit. Choose AAC, M4A, or OPUS when you want a small file that still sounds good on headphones. M4R is the iPhone ringtone format, and MMF is used by older Yamaha handsets.
Lossless and lossy audio compression
There are different types of audio files based on their compression: lossless and lossy. Some audio formats can use both types of compression.
The advantage of lossless audio files is their high sound quality. For example, audiophiles often prefer the quality of a FLAC file over any lossy audio file. Lossy files, however, are much smaller in size. That is why lossy formats like MP3 are more common and better supported.
Audio settings you can change
Every conversion starts with automatic settings, so you can upload a file, pick a format, and start straight away.
When you need more control, the optional settings let you change the bitrate, sample rate, and channels. A bitrate of 192 kbit/s or more keeps music close to the original, while 96 kbit/s is enough for speech. Mono roughly halves the size of a voice recording, and volume normalization evens out tracks that were recorded at different levels.
The format starts on MP3 and every other setting on Auto or off, so you only change what you need.
Audio converter FAQ
What formats can this audio converter convert to?
The audio converter creates AAC, AIFF, FLAC, M4A, M4R, MMF, MP3, OGG, OPUS, WAV, and WMA files. Common audio and video files are accepted as input, so WAV to MP3, OGG to MP3, and MP4 to MP3 all work here.
Is this audio converter free?
Yes. Everyday music, podcast, and voice files convert for free, and no account is needed. A subscription raises the size limit and skips the queue if you convert long recordings regularly.
Can I convert a video file into audio?
Yes. Upload an MP4, MOV, AVI, or similar video and the soundtrack is written to the audio format you chose. The picture is removed, which is why the result is much smaller than the video.
Can I convert several files at once?
Yes. Add as many files as you need before you start. They are converted in one batch and each one comes back as a separate audio file.
Does converting change the audio quality?
Converting into a lossy format such as MP3, AAC, or OGG re-encodes the sound, so a little quality is lost. At 192 kbit/s or higher the difference is inaudible for most music. Convert to FLAC or WAV when you want to keep the audio exactly as it is.
Should I choose MP3 or FLAC?
Choose MP3 for sharing and for players and car stereos, because it is small and supported everywhere. Choose FLAC for archiving or editing, because it keeps the full quality at roughly half the size of a WAV file.
Do I need to install anything to use the audio converter?
No. The audio converter runs in your browser, so there is no software and no plugin to install. Windows, macOS, Linux, Android, and iOS all work the same way.
Can I use the audio converter on my phone?
Yes. Open this page in a mobile browser and pick the file from your phone or from cloud storage. The conversion runs on the server, so it does not drain your battery.
Blog
How to Choose the Right Audio File Format
Learn the pros and cons of MP3, AAC, FLAC, and WAV, and discover online tools to convert, edit, and optimize your music with ease.
Read article