Background Noise Remover
Reduce steady background hum, hiss, and fan noise
Drop an audio file
Reduce steady background noise
Works with any file size -- files over 5000MB may just take a little longer
What is this tool?
Reduces steady background noise -- hum, hiss, fan noise, air conditioning -- from an audio recording, using FFT-based spectral subtraction (the same underlying technique used in professional audio restoration tools). Runs entirely in your browser -- the audio never leaves your device.
How to use it
Upload your audio file, choose how aggressive the cleanup should be, and download the result.
Being upfront about what this can and can't do: this handles steady, constant background noise well -- the kind of hum or hiss that's always there at roughly the same level. It's not the same as the AI-based voice isolation in tools like Krisp or Adobe Podcast Enhance, which can separate a voice from much more chaotic or changing background noise (like a crowded room). For a steady noise floor, this genuinely helps; for a complex or shifting noisy environment, results will be more limited.
Watch: Background Noise Remover in Action
Watch on YouTubePlays on YouTube (counts toward our @freedailypro channel).
Next: Silence Remover
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Frequently asked questions
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