Instagram Video Resizer

Crop, fit and resize videos for Instagram Reels, Stories and feed posts with private processing in your browser.

  • Local processing
  • Instagram presets
  • MP4 export
Prepare an Instagram video
Choose a video and output format, inspect the crop, then create an H.264/AAC MP4 where your browser supports it. The result includes an Instagram Reel compatibility check.

MP4, MOV or WebM up to 250 MB. Your video stays in this browser.

Video fit

Private video preparation without a full editor

A focused export workflow for correcting dimensions and framing before a video reaches Instagram.

Instagram framing
Use 9:16, 4:5, square or landscape dimensions, then crop or retain the complete source frame.
Compatibility checks
Inspect source details and compare the intended output with Instagram's stated Reel baseline before publishing.
On-device processing
The source and finished MP4 remain in your browser rather than being uploaded to Instagram Utils.

A predictable resizing workflow

The tool separates lightweight inspection from the more demanding encoding step so you can confirm the result first.

Step 1

Inspect

Read the source resolution, duration, frame rate, codecs and available browser encoders.

Step 2

Frame

Preview the selected Instagram ratio and reposition whichever crop axis has excess video.

Step 3

Export

Create and download a 30 FPS MP4 with H.264 video and preserved or converted AAC audio.

Instagram Video Resizer FAQs

Answers about supported files, local encoding, crop behaviour, export compatibility and quality.