Does CalmClip upload my video to a server?

No. CalmClip processes everything entirely inside your browser using WebAssembly. Zero bytes of your video are ever sent to any server. Your files stay on your device at all times.

Is CalmClip free to use?

Yes. CalmClip is completely free. No account, no subscription, no hidden fees. Open the site and start editing immediately.

What video formats does CalmClip support?

CalmClip supports MP4, MOV, WebM, and MKV files. All editing and export happen locally in your browser using FFmpeg compiled to WebAssembly.

How does AI transcription work without uploading my video?

CalmClip runs the Whisper speech recognition model locally in your browser via WebAssembly. The AI model downloads once and runs entirely on your device, so your audio never leaves your machine.

Can CalmClip handle large video files?

Yes. Because CalmClip processes files locally using FFmpeg compiled to WebAssembly, it handles large files (1 GB and above) without upload delays. Editing starts immediately after you select the file.

Does CalmClip require an account or login?

No. CalmClip requires no account, no login, and no registration. Open the site, drop your video, and start editing.

Does CalmClip upload my audio to denoise it?

No. Denoising runs via FFmpeg compiled to WebAssembly in your browser. Your audio stays on your device at all times.

What types of noise does it remove?

CalmClip uses FFmpeg noise reduction, which works best on steady-state noise: HVAC hum, fan noise, electrical hiss, and room tone. It is less effective on intermittent noise like coughs or car horns.

Does denoising require Pro?

No. Audio denoising is a free feature. Enable it in the Audio section alongside loudness normalization.

Will denoising affect the voice quality?

Aggressive noise reduction can introduce artifacts in the speech. CalmClip uses a moderate setting that removes clear noise without degrading voice quality in most recordings.

Can I combine denoising with loudness normalization?

Yes. Enable both in the Audio section. They apply in the same FFmpeg export pass, so your audio is both cleaned and leveled in one step.

What formats does it work with?

Any video format CalmClip accepts: MP4, MOV, WebM, and MKV. The denoising applies to the audio track regardless of the container format.

Remove Background Noise from Video | Audio Denoiser

Remove Background Noise from VideoStrip fan noise, HVAC hum, and room echo from your audio locally in your browser. Strip background hum, fan noise, and room echo from your video audio in one export pass. Browser-based, free, no upload required. Combine with loudness normalization.

Trim and cut video clips

AI captions and transcription (local, no upload)

Remove silence and filler words

Face blur (local processing)

Resize to any aspect ratio

Loudness normalization

Metadata stripping

Free, no install, no account