Audio compressor
Compress & Convert Audio — Free, In Your Browser
Drop files or click to chooseTap to choose files
Quick tools are no-signup slices of Free Studio
One job each — cut, caption, compress, convert — from the same open-canvas board. Free to export, no watermark, no limit. Or open Studio and do it all on one board with your agent.
Compress & Convert Audio — Free, In Your Browser
Compress and convert in one place
Shrink a big file for email or a podcast host, or switch between MP3, M4A, OGG, WAV and FLAC when a device only accepts one.
Master audio in StudioPick a format and a level
For MP3, M4A and OGG, three levels map to common bitrates: Strong for the smallest files and voice, Light to stay close to the source.
Open StudioCompare, then download
Each file shows its before and after size and the percent saved, and you can play both versions.
Open StudioFree, clean, on your device
Audio compression runs in your browser — your files never upload, there's no sign-up and no watermark on the result.
Studio takes the same job onto a full multitrack board, free to edit and export.
Open StudioQuestions
Yes — every format, every level and every download is free, with no watermark, no account and no file limit, because the encoding runs in your browser, not on a server.
Right in your browser. It's a web app that compresses and converts locally rather than sending your files off to a server.
MP3 is the most compatible everywhere; M4A (AAC) is usually a touch smaller at the same quality; OGG is a good open, lossy option. Choose WAV or FLAC when you need lossless. For WAV to MP3 or M4A to MP3, pick MP3 if you're unsure.
That happens when you convert to a lossless format like WAV or FLAC — they store the full audio, so they're larger than a compressed MP3. It's an expected convert, not a failure. To shrink a file, convert to MP3, M4A or OGG instead.
Yes — drop as many files as you like, pick a format for each, and they process one after another and download together as a single zip.
More than an audio compressor
Smaller audio sounds better when it starts clean. Enhance the voice, cut fillers, transcribe it or compress the video that goes with it. Studio mixes it all on one timeline.