Resize your video for Instagram Reels

Get a clip ready for Reels: full screen, nothing squashed. It runs in your browser, so your video stays on your device.

or drop it here

Up to 720p · no watermark

Editing on your phone?

The ClipSizer app for Android is on its way.

Coming soon to Google PlayEmail me when it's out

How it works

  1. Pick your clip

    Choose a video from your phone or computer, or drop it in.

  2. Fit it to Reels

    The Reels shape, 9:16, is set for you. Fill the frame, or keep the whole shot over a soft blurred background.

  3. Download it

    Save the new video and share it as a Reel. Up to 720p, no watermark.

Instagram Reels size

Shapes you can upload1.91:1 to 9:16
Lowest resolution720 pixels
Lowest frame rate30 fps

Source: official help page, checked Oct 2026

Questions

Is my video uploaded to your servers?

No. It's resized right here on your device and never leaves it. You share the finished Reel from Instagram yourself.

Can I use this on my iPhone?

Yes, Safari on recent iPhones works. If a long or 4K clip is too big for the phone browser, try a shorter one or use a computer.

Is 720p sharp enough for Reels?

Your Reel comes out at 720 × 1280. That meets the 720 pixel minimum Instagram lists for Reels.

Can I keep my whole video in the frame?

Yes. Choose Fit for plain bars, or Blur to fill the gaps with a blurred copy of your clip.

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