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 actually not upload my video?

Correct. The trim operation runs using FFmpeg compiled to WebAssembly, which executes in your browser. Your video bytes stay on your hard drive. You can verify by disconnecting from the internet after loading the page.

What video formats can I trim?

MP4, MOV, WebM, and MKV. All processed locally.

Is there a file size limit for trimming?

There is no upload-based limit. The practical limit depends on your browser and available RAM. Most machines handle files up to 4 GB without trouble.

Will trimming affect video quality?

No. CalmClip uses stream copy mode for trimming when possible, which means the video stream is not re-encoded. You get frame-accurate cuts with no quality loss.

Can I trim multiple sections from one video?

Yes. Use the manual cut mode to split at the playhead and delete individual sections. The silence cutter also auto-removes segments.

Does the free version include trimming?

Yes. Trimming is a core free feature. No Pro licence required.

Trim Video Online Free | No Upload

Trim Video Online (100% Free & Private)Cut and split videos instantly without uploading a single byte to a server. The fastest way to trim, cut, and split video files online. CalmClip runs entirely in your browser. No uploads, no waiting, no watermark. Free forever.

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