Resize GIF

Change the dimensions of an animated GIF or video

Free GIF Resizer — Change Animated GIF Dimensions Online

ezyimg's GIF Resizer lets you change the width and height of any animated GIF or video file directly in your browser. Resize GIFs to fit avatars, banners, chat stickers, or website embeds — all processing is done locally with no file uploads required.

How to Use

  1. 1

    Upload your GIF or video

    Drop an animated GIF or video file onto the upload area. Both GIF and MP4/WebM formats are supported.

  2. 2

    Set the target width

    Enter the desired width in pixels. Common sizes: 128px for avatars, 480px for chat, 800px for web.

  3. 3

    Keep or override aspect ratio

    Check 'Keep aspect ratio' to scale height automatically. Uncheck to set a custom height independently.

  4. 4

    Click Resize

    Processing runs entirely in your browser. A before/after file size comparison is shown when done.

  5. 5

    Download the resized file

    Download your resized GIF or video. The output format matches the input format.

Tips & Best Practices

  • →Keeping aspect ratio prevents distortion — always recommended unless you specifically need a square crop.
  • →480px wide is the standard for GIFs shared in chats and social media posts.
  • →Reducing GIF dimensions is one of the most effective ways to reduce file size.
  • →For a 1:1 square GIF (for Instagram or Twitter profile), uncheck aspect ratio and set equal width and height.

Frequently Asked Questions

How do I resize a GIF online for free?

Upload your GIF to ezyimg's GIF Resizer, enter the target width in pixels, choose whether to keep the aspect ratio, then click Resize. The tool scales the animation using high-quality Lanczos filtering entirely in your browser.

Does resizing a GIF reduce its file size?

Yes. Reducing the pixel dimensions of a GIF also reduces its file size, often significantly. A GIF at half the width is typically 60–75% smaller in file size.

What is the best GIF size for social media?

For Twitter/X, 480px wide is recommended. For Instagram Stories and TikTok, use a 9:16 ratio (e.g. 480x854px). For Discord and messaging apps, 256–480px wide works well.

Can I resize a video with this tool?

Yes. The GIF Resizer also accepts MP4, WebM, and other video formats. It outputs a resized video in the same format.

Will resizing a GIF lose quality?

Scaling down usually has minimal visible quality loss. Scaling up (enlarging) can make a GIF look pixelated since you are adding pixels that were not originally there.