Resize GIF

Change the dimensions of an animated GIF or video

Drop a GIF or video file

Resize GIF Online - Change GIF Width and Height Free

EzyIMG's Resize GIF tool lets you change the pixel dimensions of any animated GIF in seconds. Enter a new width (choose from common presets like 320, 480, 640, 800, or 1080px, drag the slider, or type any custom value) and the height scales automatically to preserve the original aspect ratio. Resizing is one of the most effective ways to reduce GIF file size for social media posts, messaging apps, or web pages.

All resizing happens locally in your browser using WebAssembly, so your file is never sent to any server. There is no account required and no watermark added to the output. The tool uses Lanczos scaling for sharp, high-quality results, and applies a two-pass palette regeneration so the resized GIF looks as clean as the original.

How to Use

1
Upload your GIF
Drag and drop an animated GIF file onto the upload area, or click to browse. The tool also accepts video files.
2
Enter the new width in pixels
Click a preset button (320, 480, 640, 800, or 1080px), drag the slider, or type a custom value. Height scales proportionally.
3
Click Resize and download
Click the Resize button. Processing runs entirely in your browser. Preview the resized GIF and download it.

Key Features

→All processing happens in your browser using WebAssembly. Your GIF is never uploaded to any server.
→Input format: GIF (also accepts video files).
→Output format: GIF.
→Reducing width from 640px to 480px typically cuts file size by around 40%. Halving the width can reduce size by 50-70%.
→Aspect ratio is preserved automatically; uncheck the option only if you need a specific non-proportional height.
→Use Resize GIF before running Optimize GIF for the best combined file size reduction.

Frequently Asked Questions

Is Resize GIF on EzyIMG completely free to use?

Yes, Resize GIF on EzyIMG is 100% free, with no account required, no watermark on the output, and no file size limit.

Does EzyIMG upload my files to a server when I use Resize GIF?

No. Resize GIF on EzyIMG runs entirely in your browser using WebAssembly. Your files never leave your device at any point.

What formats does Resize GIF support?

Resize GIF accepts an animated GIF as its primary input and outputs a resized GIF. It also accepts video files (MP4, WebM) and outputs a resized MP4.

Does resizing a GIF reduce its file size?

Yes. Reducing a GIF's dimensions is one of the most effective ways to reduce its file size. Halving the width typically reduces file size by 50-70%.

What width should I use for social media GIFs?

480px is standard for Twitter, messaging apps, and most social platforms. 640px works well for web embeds. 800–1080px is suitable for high-resolution displays or blog posts.

Last updated: June 2026