Dynamic control
Free Online Audio Compressor
Apply compression to control peaks, tighten spoken voice, and make rough music or podcast exports feel more even. Adjust threshold and ratio, preview, and export locally with browser-based FFmpeg.
Useful for private narration, demos, and client review files because the source material stays on your device.
Uses FFmpeg compression processing with adjustable threshold and ratio for predictable dynamics control.
A focused way to tame peaks and level out rough material without opening a larger mixing session.
Drag & drop audio here, or click to upload
Supports MP3, WAV, M4A, FLAC, OGG, AAC, and more
How to use the Audio Compressor online
- 1.Upload an audio file and let the browser read its duration and sample rate.
- 2.Set the threshold and ratio to decide when compression starts and how strongly peaks are controlled.
- 3.Choose MP3 or WAV export, process the file in the browser, preview the result, and download it.
Why use this Audio Compressor?
Useful for voice and demo mixes
Compression helps speech sit more steadily and can make rough music or podcast exports feel more controlled before delivery.
Private browser workflow
FFmpeg runs locally on your device, so source files stay off external servers during processing.
Flexible output
Export MP3 for quick sharing or WAV if you want to keep editing the result afterward.
Common use cases
- •Tame loud peaks in a spoken voice recording.
- •Create a more even podcast draft before sharing for review.
- •Tighten a quick music demo that jumps between quiet and loud phrases.
- •Prepare dialogue tracks before loudness normalization.
Tips for better results
- •A ratio around 2:1 to 4:1 is often a good starting point for speech.
- •If room tone suddenly becomes obvious, ease back on the threshold or ratio.
- •Normalize after compression if you want a more consistent final delivery loudness.
Audio Compressor FAQ
Will this make quiet parts louder automatically?
It primarily reduces louder peaks. Perceived loudness can rise, but this is not the same as full loudness normalization.
Is my audio uploaded to a server?
No. The processing happens in your browser, so the source file stays on your device.
Which formats can I upload?
Most common browser-decodable formats are supported, including MP3, WAV, M4A, FLAC, OGG, and many AAC-based files.
When should I export WAV instead of MP3?
Choose WAV if you plan to keep editing or chain more processing afterward. MP3 is better for quick sharing and review.