Change audio into the format your player, editor or upload form wants. Convert a batch at once, choose the quality, and play each result before you download it.
Convert audio at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | WAV · M4A · FLAC · OGG · MP3 |
| Largest file | 1 GB per file, several files at once |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to convert audio
- Choose or drop your audio files.
- Pick MP3, M4A or WAV and the quality.
- Press Convert audio.
- Listen on the page, then download the files or send them with a link.
Supported formats
| From | To |
|---|---|
| WAV, FLAC (lossless) | MP3, M4A, WAV |
| M4A, AAC (iPhone, iTunes) | MP3, M4A, WAV |
| OGG Vorbis, Opus, WebM audio | MP3, M4A, WAV |
| MP3 | M4A, WAV, or a different MP3 bitrate |
Files with more than two channels (surround) are mixed down to stereo. Sample rates that MP3 does not support are converted to 44.1 or 48 kHz.
Lossy and lossless
WAV and FLAC keep every detail and are large; MP3 and AAC (M4A) remove what the ear hardly notices and are about a tenth of the size. Converting from lossless to MP3 is the typical step before sharing. Converting between lossy formats (M4A to MP3) re-encodes the sound; at 192 kbps or more that is not audible for most material, but avoid doing it again and again.
Recording from a video? Use Extract audio from video.
Private and works offline
Your browser decodes the audio and the page encodes it with LAME (MP3) or AAC, on your device. Nothing is uploaded, and after the first use the tool also works offline.
How this compares
| This tool | Online converters (e.g. Online Audio Converter, Clideo or CloudConvert) | Desktop apps (e.g. Audacity) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More audio tools.
Frequently asked questions
Which audio formats can I convert?
WAV, FLAC, M4A, AAC, MP3, OGG Vorbis, Opus and WebM audio, to MP3, M4A or WAV.
Is converting to MP3 lossless?
No. MP3 is a lossy format, but at 192 kbps or more most listeners cannot hear a difference. Choose WAV for a lossless copy.
Are song tags kept?
Title, artist and album tags are carried over where the output format supports them.
Are my files uploaded?
No. Conversion happens in your browser.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free