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Crop Video

Turn a landscape video into a vertical 9:16 clip for TikTok, Instagram Reels and YouTube Shorts, or crop to a square for posts. It runs in your browser with FFmpeg, so your video is never uploaded. Free, no sign-up, no watermark.

Drop a video here or click to choose

MP4, MOV, WebM, MKV · up to 2 GB

Files stay on your device. Nothing is uploaded.

Read the full guide: How to Crop Video for TikTok, Reels and Shorts (9:16)

How to crop a video to 9:16

Quick answer: To crop a video to 9:16, add your video, move the box, pick another shape if you like and export MP4.

  1. Add your video. A 9:16 crop box appears in the middle.
  2. Move the box. Drag it over the part you want to keep, or drag a corner to zoom in. Keyboard: arrow keys move it, + and − resize.
  3. Pick another shape if you like. 1:1 for square posts, 4:5 for Instagram feed posts, 16:9 for YouTube.
  4. Export MP4. Upload it straight to TikTok, Reels or Shorts.

Sizes for social video

TikTok, Reels and Shorts are 9:16 (1080 × 1920 at full quality). Instagram feed posts look best at 4:5 (1080 × 1350). Square 1:1 works on every platform. Cropping a 1080p landscape video to 9:16 gives a 606 × 1080 clip, which these apps display full-screen.

Private and free

Most online video tools upload your file, put it in a queue and add a watermark. Here FFmpeg, the engine used by professional video software, runs inside your browser, so nothing is uploaded, there's no watermark and no file-size fee. The engine (about 31 MB) downloads once and is then cached.

Frequently asked questions

Will cropping reduce quality?

Cropping keeps the original pixels of the area you choose; it doesn't stretch anything. The video is re-encoded at high quality.

Can I crop and trim at the same time?

Yes. Switch to the Trim tool, set the start and end, then export once.

How do I keep a moving subject in frame?

This tool uses one crop position for the whole clip. For moving subjects, trim the video into parts and crop each one.