Audio ToolsFree

Remove Background Noise

Apply noise reduction filters to audio recordings to remove hiss, hum, fan noise, air conditioning, and other constant background noise. Uses the Web Audio API for in-browser processing. No file upload, no signup, completely private.

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MP3, WAV, OGG, FLAC, AAC · Any format

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Frequently Asked Questions

What types of background noise can be removed?▼
Constant background noise such as microphone hiss, electrical hum, fan noise, air conditioning, room tone, and low-frequency rumble.
Does it use AI for noise removal?▼
It uses Web Audio API high-pass and band-pass filter nodes — a DSP-based approach that is lightweight, runs entirely in the browser, and requires no internet connection.
Will noise removal affect my voice or music quality?▼
Moderate noise reduction has minimal impact on voice clarity. Aggressive settings may introduce audio artifacts, so use the preview to find the right level.
Which audio formats are supported?▼
MP3, WAV, OGG, and FLAC.
Is the audio processed in the browser?▼
Yes. All noise reduction processing happens locally in your browser using the Web Audio API. Your file is never uploaded.