Noise Cancellation Free Online
Clean up noisy recordings with AI-powered noise cancellation. Remove wind, fan, keyboard typing, air conditioner hum, and other background noise from voice recordings. The RNNoise AI model runs entirely on your device, so your audio file is never uploaded to any server. Perfect for improving podcast recordings, voice memos, and meeting notes.
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- Only upload files you have the right to use. Copying or sharing other people's music, videos or recordings without permission can violate copyright law. FreeSoundTools does not store your files on a server.
When to use it
- Clean up podcast recordings with background noise
- Remove fan or air conditioner noise from voice memos
- Fix meeting recordings with keyboard typing sounds
- Reduce wind noise from outdoor recordings
How to use
- Drop your audio file into the box or click to choose one.
- Wait while the AI model loads (first time only, then it is cached).
- The tool processes your audio and removes background noise.
- Listen to the result and compare with the original.
- Save the cleaned audio as MP3, WAV, or FLAC.
How it works
Noise cancellation uses the RNNoise recurrent neural network, which runs directly in your browser using WebAssembly. The model was trained to separate human speech from background noise. It processes audio in real time, removing steady-state noise like fans, hum, and keyboard sounds while preserving voice clarity. Your file never leaves your device. How to verify. Also available as a free REST API for developers and AI agents (edge-processed, zero retention).
Also available as: Voice Noise Remover (full controls)
FAQ
What types of noise can it remove?
It works best on steady background noise: fans, air conditioners, keyboard typing, humming, and wind. It is less effective on sudden loud noises or music.
Does it affect voice quality?
The AI preserves speech while removing noise. In very noisy recordings, there may be slight artifacts, but voice clarity is generally improved.
What file formats are supported?
Input: MP3, WAV, M4A, OGG, FLAC, and other browser-supported formats. Output: MP3, WAV, FLAC.
How long does processing take?
The AI model loads once (a few seconds), then processing is near real-time. A 5-minute recording takes about 5-10 seconds.
Is my audio uploaded?
No. The AI model runs entirely in your browser. Your audio stays on your device.
Last checked: October 10, 2026 · FreeSoundTools team