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.

What aspect ratios does Instagram support for video?

9:16 for Reels and Stories, 1:1 for the standard feed square format, and 4:5 for portrait feed posts which take up more screen space.

Which ratio should I use for Instagram Reels?

9:16 is the standard for Reels. It fills the full screen on mobile, which is what Instagram is optimized for.

Is resizing for Instagram free?

Yes. Resizing to any single ratio is a free feature with no watermark.

Can I get all three Instagram formats at once?

Yes, with Pro. Batch export produces multiple ratios from one source file in a single pass.

Does it add captions to the resized video?

Yes. Add captions in the Captions section and they are included in the resized export.

Can I control where the crop falls?

Yes. Drag the crop frame to any position, or use Smart Center to let CalmClip pick automatically.

Crop Video for Instagram Reels, Feed, and Stories

Crop Video for Every Instagram FormatResize to 9:16 for Reels, 1:1 for the feed, and 4:5 for portrait in one session. Resize video to 9:16 for Reels, 1:1 for the Instagram feed, or 4:5 for portrait posts. Free browser tool, no upload, no watermark.

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