audioconverteronline.com is a simple tool that changes a song from one audio format to another — like MP3 to FLAC, or WAV to MP3. There are no accounts, no waiting in line, and no fee.
Most converters online ask you to upload your files to their server. We do not. Everything happens right inside your own web browser, on your phone or computer. Your songs stay with you. If you have a slow internet connection, that means it works just as well for you as for anyone else — the file never has to make a round trip.
We support MP3, FLAC, WAV, OGG, M4A, AAC, Opus, AIFF, and Apple Lossless. We can also open WMA files from older Windows computers (we just don't save back into that format).
It is also a small clip editor. Drop a song and click "Edit clip" to see its waveform on a timeline. You can drag the edges to trim the start or end, click the Cut tool to chop a section out, and set a Repeat count to loop the kept part back-to-back. There is a one-tap shortcut for making a custom iPhone ringtone (.m4r, up to 30 seconds) — handy for picking the perfect 30 seconds out of any song.
How is it free? The page shows a few small ads. That's how we keep the lights on. The converter itself is fully open to everyone — no file-size limits, no watermarks, no sign-up.
Built by a small team that likes making simple tools that just work.