Audio Compressor — Free Online Compressor for Voice & Music
Make any recording sound fuller and more consistent with a real dynamics compressor — the same effect every podcast and radio station uses. It runs 100% in your browser; your audio never leaves your device.
Audio Compressor
Even out the volume — tame peaks and lift quiet parts, right in your browser.
1 Add your audio file
2 Settings
3 Process & download
✅ Done — your audio is ready
How to use it
- Add your audio — drag in a voice recording, podcast or song (MP3, WAV, M4A and more).
- Pick threshold and ratio — start with −18 dB and 4:1 for speech; go stronger for very uneven recordings.
- Process & download — your compressed MP3 is ready in seconds.
About this tool
A compressor reduces the dynamic range of audio: the difference between the loudest shout and the quietest whisper. Loud parts above the threshold are turned down automatically, which lets the whole file be raised in volume without clipping — the result sounds fuller, clearer and more professional.
It is essential for podcasts, voiceovers, interviews and call recordings, where speakers move around the microphone. This tool exports MP3 at 192 kbps and processes everything locally in your browser.
Frequently asked questions
Is this the same as an audio file compressor that makes files smaller? No — this is a dynamics compressor (the studio effect), not file-size compression. To shrink a file, use the bitrate options in the Audio Format Converter instead.
What settings are best for a podcast? Threshold −18 dB with a 4:1 ratio is a solid starting point for speech. Very uneven recordings benefit from −24 dB and 8:1.
Are my files uploaded? No. Everything runs in your browser with a local audio engine — nothing is sent to a server.
More tools
- Audio Format Converter — convert between MP3, WAV, OGG, FLAC and more
- Audio Trimmer — cut the start and end off any audio
- Vocal Remover — strip vocals and keep the backing track
- All audio tools