100% local processing — your data never leaves your device.
Reduce Audio Noise
Remove background noise with afftdn or anlmdn. Audio or video input, WAV export. Local FFmpeg.wasm.
Proof of local processing
This tool is classified as local in the WebFileTools registry: processing is expected to stay inside your browser.
- •The page is declared as local in the public tool catalog.
- •No server-side storage is announced for this processing flow.
- •The easiest verification is to monitor the Network panel while it runs.
How to verify it yourself
- 1Open your browser developer tools and switch to the Network panel.
- 2Run the processing flow with a test file.
- 3Confirm that no upload request containing your file is sent to WebFileTools.
You use this tool often? Pro includes files up to 500 MB and priority processing.
What is Audio Noise Reducer?
Audio noise reducer with afftdn and anlmdn, adjustable strength, WAV export.
How to use this tool?
Drop an audio or video file, choose algorithm and strength, then download the denoised WAV.
Benefits
- afftdn + anlmdn
- Adjustable strength
- Audio or video
- WAV export
- FFmpeg.wasm
Frequently Asked Questions
- Which algorithms are available?
- afftdn (spectral reduction) and anlmdn (adaptive non-local filter). Pick based on noise type.
- Can I process a video?
- Yes, the audio track is extracted and denoised automatically.
- Is processing local?
- Yes, FFmpeg.wasm runs in your browser. No file is uploaded.
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