How to Convert Audio Files Online (Free)
An M4A voice memo that won't play in an app, a giant WAV you need as an MP3, or a FLAC you want to share — audio formats trip people up constantly. The Audio Converter converts between MP3, WAV, M4A, OGG and FLAC in your browser, with no upload.
Which audio format to choose
MP3 is the universal, compressed choice that plays everywhere. WAV and FLAC are lossless and best for editing or archiving, but large. M4A (AAC) is efficient and common on Apple devices. OGG is an open, web-friendly format. Pick MP3 for sharing and FLAC or WAV when you need full quality.
How to convert audio
- Open the Audio Converter and add your file. 2. Choose the target format — MP3, WAV, M4A, OGG or FLAC. 3. Convert and download. The conversion runs locally, so your audio never leaves your device.
Common conversions
M4A to MP3 (for compatibility), WAV to MP3 (to shrink huge recordings), and FLAC to MP3 (to share lossless libraries). If the file is just too big, follow up with the Audio Compressor to bring the size down further.
Try the tool from this guide
Audio Converter
Convert audio to MP3, WAV, M4A, OGG or FLAC.
Open Audio ConverterFrequently asked questions
How do I convert M4A to MP3 for free?
Open the Audio Converter, add the M4A, choose MP3, and download — free and in your browser.
Does it support lossless formats?
Yes. You can convert to and from WAV and FLAC for lossless audio.
Is my audio uploaded?
No. The conversion happens in your browser, so your files stay on your device.
Which format is smallest?
MP3 and M4A (AAC) are compressed and small; WAV and FLAC are lossless and larger.
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