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Resize video for Instagram

Resize video for Instagram
For social, web, and sharing

Prepare videos for Instagram Reels, Stories, and feed posts with simple presets.

Choose videoSee how it works
  • MP4, MOV, WEBM
  • Up to 1GB
  • No watermark
  • Auto-delete within 24h
1Upload video
2Choose output size
3Choose fit mode
4Preview
5Optional trim
6Processing
7Result
8Download

Resize video online

Change video size for Reels, Shorts, Instagram, YouTube, websites, and sharing.

Drop your video here

or

MP4, MOV, or WEBM up to 1GB

No watermark
Auto-delete within 24h
Fast & secure
Works on mobile
Files are processed temporarily and automatically deleted after 24 hours.

Resize for every platform

Upload a video first, then choose a social size, fit mode, optional trim, and MP4 output.

Reels, Shorts, Stories, Instagram posts, square posts, and YouTube landscape sizes are ready as presets.

How it works

1. Upload

Choose your video file.

2. Select size

Pick a platform preset.

3. Resize

Prepare a clean MP4.

4. Download

Save the resized video.

Processed temporarily

Files are automatically deleted after 24 hours.

What does resize video for instagram do?

This page is written and reviewed by the MediaReady team for creators and small teams that need a video to match a specific frame before sharing. Choose a preset such as 9:16 for Reels and Shorts, 4:5 for Instagram posts, 1:1 for square feeds, or 16:9 for landscape video. Fit keeps the whole video visible, crop fills the frame by trimming edges, blur background keeps the full video over a soft backdrop, and stretch fills the frame by changing the shape. Files are processed temporarily and automatically deleted after 24 hours. The output is a share-ready MP4, and the optional trim control helps remove extra seconds before resizing when a social platform, presentation, client preview, or website embed needs a cleaner clip. It keeps the workflow focused without forcing manual export settings.

  • Accepts MP4, MOV, and WEBM videos up to 1 GB.
  • Exports a compatible MP4 for social, web, and everyday sharing.
  • Includes presets for Reels, Shorts, Instagram, square, YouTube, Story, and custom sizes.
  • Lets you choose fit, crop, blur background, stretch, optional trim, and audio mode.

How to resize a video online

  1. 1

    Upload video

    Choose an MP4, MOV, or WEBM video up to 1GB.

  2. 2

    Choose output size

    Pick Reels, Shorts, Instagram, square, YouTube, Story, or custom dimensions.

  3. 3

    Pick a fit mode

    Use fit, crop, blur background, or stretch depending on where the video will be shared.

  4. 4

    Resize and download

    Review the estimate, resize the video, and download the MP4 when ready.

Choose the right fit mode

Fit full video

Adds padding so the full video remains visible.

Crop to fill

Fills the selected size by cropping edges when needed.

Blur background

Keeps the full video over a soft blurred background.

Stretch to fill

Fills the selected size without bars or cropping by changing the video shape.

Common resize use cases

Reels and Shorts

Create vertical 9:16 videos for Instagram Reels, YouTube Shorts, Stories, and TikTok-style sharing.

Instagram posts

Resize landscape or vertical footage into 4:5 feed posts or square social layouts.

Website and client previews

Make videos match a fixed frame size before sending or embedding them.

Files are processed temporarily and automatically deleted after 24 hours.

Frequently asked questions

Which video formats are supported?
This resize flow accepts MP4, MOV, and WEBM videos up to 1GB. The output is prepared as a compatible MP4.
Can I resize videos for Reels and Shorts?
Yes. Choose the Reels / Shorts preset for a 9:16 vertical MP4. Blur background is a good default when you want to keep the full video visible.
What is the difference between fit, crop, blur background, and stretch?
Fit keeps the whole video with padding, crop fills the selected frame by trimming edges, blur background keeps the full video over a soft background, and stretch fills the frame without cropping by changing the video shape.
Can I trim the video while resizing?
Yes. The optional trim step lets you select a shorter clip before starting the resize job.
Are files deleted automatically?
Files are processed temporarily and automatically deleted after 24 hours.

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