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 CalmClip support?

16:9 (landscape), 9:16 (vertical), 1:1 (square), and 4:5 (portrait). These cover TikTok, Instagram, Reels, Shorts, and YouTube.

Will it crop out part of my video?

Yes, in Fill mode. If you choose Fit mode instead, CalmClip adds bars to fill the frame without cropping any content.

Can I control where the crop lands?

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

Yes. Resizing to any ratio is a free feature.

Can I export all ratios at once?

Yes, with Pro. Batch export sends 16:9, 9:16, 1:1, and 4:5 in a single pass.

Does resizing reduce quality?

CalmClip re-encodes only when necessary. The output quality matches your export preset.

Resize Video for Instagram, TikTok, YouTube

Resize Video Online for Any PlatformEasily crop and scale your videos for TikTok, Instagram Reels, and YouTube Shorts. Crop, fit, and resize videos to 9:16, 1:1, or 4:5 aspect ratios instantly in your browser. Free online video resizer with 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