Repair Audio Free Online

Fix bad audio in one click. Removes background noise, normalizes volume, and eliminates electrical hum automatically. No account, no watermark.

Works best on noise, hum, and volume issues. Heavy room echo may need acoustic treatment. Supports MP4, MOV, MKV, WebM, MP3, WAV, M4A up to 2GB.

MP4 MOV MKV WebM MP3 WAV M4A

Output: repaired MP4 or MP3

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Click to upload or drag & drop

MP4 · MOV · MKV · WebM · MP3 · WAV · M4A · Up to 2GB

Removes noise, fixes volume, and eliminates hum in one pass

Processing time depends on file length and your upload speed.

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No account required

Just upload and go. Nothing to sign up for, no email, no credit card.

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No watermark, ever

Your repaired file comes back clean. No branding overlay, no audio stinger, nothing extra.

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Files deleted in 15 minutes

Your recording does not live on our servers. Privacy by default.

How It Works

1

Drop your video or audio file

MP4, MOV, MKV, WebM, MP3, WAV, or M4A up to 2GB and 30 minutes. Drag and drop or click to browse.

2

Volume normalize, denoise, de-hum

FFmpeg loudnorm brings your audio to broadcast level (-16 LUFS). DeepFilterNet3 then strips background noise from the speech. A final 50/60Hz notch filter cleans up electrical hum. One pass, no settings.

3

Download the repaired file

Video inputs return as MP4 with the original video stream preserved and the repaired audio remuxed in. Audio inputs return as repaired MP3.

Who uses this

Podcasters, YouTubers, and creators with recordings that are too quiet, too noisy, or buzzing with electrical hum. Useful for Zoom calls saved at low volume, voice memos with fan noise, lavalier mic recordings with line hum, and interview audio that needs to land at a consistent broadcast level.

Drop the file, get a repaired version back. No sliders, no presets, no settings to tune.

Need only background noise removed without volume changes? Use Remove Background Noise. Need to cut silent gaps? Use Remove Silence.

Frequently Asked Questions

Everything you need to know about the audio repair pipeline.

What does the audio repair tool fix? expand_more

It removes background noise, wind, hum, static, and fan noise using DeepFilterNet3 AI, normalizes volume to broadcast standard, and removes electrical hum at 50Hz and 60Hz. Works on video and audio files.

Will it fix echo or reverb? expand_more

The tool works best on background noise, hum, and volume issues. Heavy room echo from untreated spaces may not be fully removed. For best results, record in a room with soft furnishings.

Is audio repair free? expand_more

Yes. No account, no watermark, no time limit. Files are deleted 15 minutes after download.

What formats does it support? expand_more

MP4, MOV, MKV, WebM for video and MP3, WAV, M4A for audio. Video outputs repaired MP4, audio outputs repaired MP3.

Also try: Remove Background Noise at vidclean.net/remove-background-noise

Also try: Remove Silence at vidclean.net