Audio converter
Convert between MP3, WAV, M4A, OGG, OPUS and FLAC, many files at once.
How to useConvert the audio.
Available in: 
Audio converter: what it is for
The audio converter turns files into the most common formats: MP3, M4A (AAC), WAV, FLAC, OGG and OPUS, at normal, high or maximum quality.
Convert several at once and download everything as a .zip. The audio is not sent to any server: everything is processed in your browser, fully private.
How to use
- Upload the audio files.
- Choose the format and quality.
- Download the converted files.
When to use it
- Audio that will not play on your phone or in the car.
- Shrinking WAV files.
- Preparing files for editing.
Frequently asked questions
Which format should I choose?
MP3 plays everywhere. M4A sounds better at the same size and is Apple's standard. WAV and FLAC are lossless but much larger. OGG and OPUS are light and used in apps and games.
Does converting to WAV improve quality?
No. Converting does not bring back what was already lost; it only changes the file format.
Are the files uploaded to a server?
No. Everything runs in your browser.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.