Audio Converter
Convert audio between MP3, WAV, M4A, FLAC and OGG with control over the bitrate rather than a fixed preset chosen for you. Each format exists for a reason: MP3 for compatibility, WAV for editing, FLAC for lossless archiving, OGG and M4A for efficient delivery. This moves a file to whichever one the next step in your work actually needs. It is free, needs no account, and adds no watermark to your result.
Audio Converter
Add your files. Recommended settings are ready, so you can process in one click.
PDF, Word, images, audio, video, archives and more
Up to 100 files · 250 MB · No account- 1Add files
- 2Choose an action
- 3Download or keep going
What happens to your file.
FFmpeg decodes the source and re-encodes it into the target format, keeping the sample rate and channel layout unless the destination format requires otherwise. Lossless targets such as WAV and FLAC preserve exactly what the decoder produced; lossy targets are written at the bitrate you select. Batches of up to 100 files are processed together and returned as a ZIP.
Where it stops: Converting a lossy file to a lossless one such as WAV or FLAC does not restore quality that was already discarded; it only stops further loss. Going lossy to lossy re-compresses and loses a little more, so convert from the highest-quality source you have rather than from an earlier conversion.
What people use it for.
Everything you need, without a paywall.
Common questions.
Which format should I convert to?
MP3 if something needs to play it anywhere. WAV if software is going to edit or analyse it. FLAC to archive without losing anything. M4A or OGG when you want small files at good quality and know the player supports them.
Does converting to FLAC or WAV improve my MP3?
No. Anything already discarded by MP3 compression is gone permanently. Converting to a lossless format simply prevents any further loss from that point on, at the cost of a much larger file.
Are the original sample rate and channels kept?
Yes. Sample rate and channel layout carry across unchanged unless the target format cannot represent them.
Is there a file limit?
Up to 100 files and 250 MB per job, applied for fair use on a shared server. There is no account, no credit system and no paid tier that raises it.
You might also need.
Convert M4A audio to MP3 for broad compatibility across players and devices.
Reduce audio size by re-encoding to MP3 or AAC at a selected bitrate while preserving normal playback compatibility.
Normalize perceived loudness using FFmpeg loudnorm processing for more consistent playback volume.
Convert common audio formats to WAV for editing, archiving and compatibility workflows.