Audio Converter
Convert audio files between MP3, WAV, M4A, OGG and FLAC in your browser.
Private by design
Files are processed in your browser.
Free & no sign-up
No account, no email, no limits.
Fast
No upload wait — work starts instantly.
No watermarks
Clean output, every time.
Different apps and devices prefer different audio formats. An audio converter lets you switch between them — MP3 for universal playback, WAV or FLAC for quality, M4A or OGG for smaller modern files — without any guesswork.
Pick your target format and the conversion runs entirely in your browser. Your audio files are never uploaded, so the process is both fast (no waiting on an upload) and completely private.
How to use the audio converter
- 1
Add your audio file
Drag an audio file into the box, or click to select one. You can also drop in a video to pull out its audio.
- 2
Choose the output format
Select MP3, WAV, M4A, OGG or FLAC, and a quality level for compressed formats.
- 3
Convert and download
Click Convert and download your file in the new format.
Choosing the right audio format
- MP3
- Universal compatibility. If something plays audio at all, it plays MP3. The safe choice for sharing and for older hardware.
- M4A / AAC
- Better sound than MP3 at the same bitrate. The native format of the Apple ecosystem and most modern devices.
- WAV
- Uncompressed and lossless. Large files, but the right input for audio editing, mastering and anything that will be processed further.
- FLAC
- Lossless with compression — roughly half the size of WAV with no quality lost. The archival format for music collections.
- OGG
- A high-quality open format, widely used in games and by open-source software.
Lossy, lossless, and what conversion costs
Lossless formats such as WAV and FLAC keep every sample of the original recording. Lossy formats such as MP3, AAC and OGG throw away detail chosen to be hard to hear, in exchange for files a fraction of the size.
Converting lossless to lossy loses detail once — usually imperceptibly. Converting between two lossy formats loses detail twice, because the file must be decoded and re-encoded. Converting lossy back to lossless does not restore anything; it produces a large file containing the same reduced audio. Always start from the best source you have.
Converted in your browser
The conversion runs on your own machine through a media engine compiled to WebAssembly. Nothing is uploaded, which means unreleased music, client recordings, interviews and anything else confidential stays on your device — and there is no upload wait before the work starts.
Audio Converter guides
Step-by-step walkthroughs for the things people most often need to do.
Frequently asked questions
Which formats can I convert between?
You can convert to MP3, WAV, M4A, AAC, OGG and FLAC. Most common audio and video inputs are accepted as the source.
Is it lossless?
WAV and FLAC are lossless targets. MP3, M4A, AAC and OGG are compressed (lossy), so they're smaller; pick a higher bitrate to keep more detail.
Are my files uploaded?
No. Conversion happens in your browser, so your audio stays private on your device.
Can I convert a video's audio?
Yes. Drop in a video file and the converter will extract and convert its audio track to the format you choose.