RunFreeTools

Video Resizer

Last updated: June 1, 2026In-browser

Crop video for Reels, TikTok, Shorts & square.

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Video Resizer is a free online tool to crop video for Reels, TikTok, Shorts & square. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.

How to use Video Resizer

The Video Resizer crops and resizes video to the perfect aspect ratio for Instagram Reels, TikTok, YouTube Shorts, square or portrait — in one click, in your browser. It reframes your footage to vertical 9:16, square 1:1 and more so it fills the screen on every platform. No upload, no watermark.

Read the full guide: How to Resize a Video for Reels, TikTok & YouTube

  1. 1Drop in your video.
  2. 2Pick a target ratio (9:16 Reels/TikTok/Shorts, 1:1 square, 4:5 portrait or 16:9).
  3. 3Export and download the resized, reframed video.

Made for social

One-click presets for Reels, TikTok, Shorts, square and portrait so your video fits each feed.

Fill the screen

Crop to vertical or square so there are no ugly black bars on mobile.

Private and watermark-free

Reframing runs on your device with a clean output.

Video Resizer — frequently asked questions

How do I make a video vertical for Reels or TikTok?

Drop in the video, choose the 9:16 preset, and export — the tool crops it to full-screen vertical.

Which aspect ratio should I use?

9:16 for Reels, TikTok and Shorts; 1:1 for square feed posts; 4:5 for portrait; 16:9 for YouTube and landscape.

Will it stretch my video?

No — it crops to the target ratio so the footage isn't distorted.

Is it free with no watermark?

Yes, completely free and watermark-free.

Are my videos uploaded?

No, the resize runs entirely in your browser.

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