Universal Audio Compressor
One tool to compress every audio format
Stop searching for a separate compressor for each audio format. Our universal audio compressor accepts MP3, WAV, FLAC, M4A, OGG, AAC, AIFF, WMA, and OPUS — detects the codec automatically and applies the optimal compression strategy for that format. Lossy files get re-encoded at a lower bitrate; lossless files can be downsized via bit depth, sample rate, or conversion to an efficient lossy codec. Everything runs in your browser, so your files remain completely private.
What You Can Do
- Compress 9+ audio formats in one place: MP3, WAV, FLAC, M4A, OGG, AAC, AIFF, WMA, OPUS
- Automatic format detection — just drop any audio file
- Smart defaults per codec: bitrate presets for lossy, bit-depth/sample-rate for lossless
- Platform presets for Email (25 MB), Discord (25 MB), WhatsApp (16 MB), Telegram (2 GB)
- Stereo-to-mono conversion and sample rate downsampling for extra savings
- Browser-based processing — no uploads, no accounts, total privacy
How to Compress Any Audio File
- Drop your audio file onto the page — format is detected automatically
- Review the detected codec and adjust compression settings or pick a preset
- Check the estimated file size and reduction percentage
- Click Compress and download the smaller file in the same format
Frequently Asked Questions
Which audio formats are supported?
MP3, WAV, FLAC, M4A (AAC in MP4), OGG Vorbis, raw AAC (ADTS), AIFF, WMA, and OPUS. The tool automatically detects the format from the file header, not just the extension, so renamed files work too.
Why use a universal compressor instead of a format-specific one?
If you work with multiple formats or receive files from different sources, a universal tool saves time — no need to figure out the format first or switch between tools. Our compressor auto-detects the codec and shows only the relevant settings.
Does the output format match the input?
By default, yes — an MP3 stays MP3, an OGG stays OGG. You can optionally convert to a different format during compression if needed, for example converting WAV to MP3 for a much smaller file.
How is lossless compression different from lossy?
Lossless formats (WAV, FLAC, AIFF) store every audio sample exactly. Compressing them means reducing bit depth, sample rate, or converting to a lossy codec. Lossy formats (MP3, AAC, OGG) already discard inaudible data; compressing them further means re-encoding at a lower bitrate, which reduces more detail.
Are my files uploaded to a server?
No. All processing happens in your browser using FFmpeg WebAssembly technology. Your audio files never leave your device. A server-side fallback is available for browsers that do not support WebAssembly.
