How to resize a GIF image
Resizing a GIF changes its pixel dimensions on the still image. GIF is limited to 256 colors per frame, so it is best suited to simple graphics and short animations rather than photos. This browser-based resizer works on the first frame of a GIF; it does not re-render every frame of an animation, so for animated GIFs you will get a single resized still rather than a smaller animation.
This GIF resizer runs entirely in your browser. Drop in a GIF file, enter a new width or height in pixels or a percentage, and download the resized version — no uploads, no sign-up, and no watermark.
How to use it
1. Drop your GIF image onto the drop zone or click to browse.
2. Enter a target width or height in pixels, or resize by a percentage.
3. Keep aspect ratio locked so the image scales proportionally instead of stretching.
4. Download the resized GIF image. Everything is processed on your device.
Choosing the right dimensions
Enter a target width or height, or a percentage, with aspect ratio locked so the graphic is not stretched. Downscaling a GIF keeps its flat colors clean. If your GIF is really a photograph, resizing helps, but converting it to JPG or WebP will produce a far better result at the new size.
Common web targets are 1920px wide for large hero images, 1080px for social media posts, and 600–800px for images placed inside articles or email. When in doubt, size to the widest space the image will fill and let the layout scale it down.
Common mistakes to avoid
A few habits quietly ruin resized images:
- Enlarging a small image and expecting it to look sharp — upscaling cannot add detail, so it always looks soft. - Unlocking aspect ratio and typing mismatched width and height, which stretches or squashes the picture. - Resizing repeatedly from already-resized copies instead of going back to the largest original each time. - Confusing dimensions with file size — if you need a specific number of kilobytes, resize first, then compress.
Frequently asked questions
Can I resize an animated GIF and keep the animation?
This resizer operates on the still image (the first frame), so the result is a single resized frame rather than a smaller animation. To resize a full animation you need a dedicated animated-GIF tool; for a still graphic, resizing here works well.
Does resizing a GIF reduce its colors?
Resizing changes the dimensions, not the palette — a GIF still caps at 256 colors per frame. If the image looks banded or limited, that is the GIF palette, not the resize; converting a photo-like GIF to PNG or WebP gives smoother color at the new size.
Does resizing change the aspect ratio?
Only if you want it to. With aspect ratio locked, changing the width updates the height automatically so the image scales proportionally and never looks stretched. Unlock it only when you deliberately need to force an image into different proportions.
Are my images uploaded to a server?
No. All resizing happens locally in your browser using the canvas engine — your GIF images never leave your device, so it is safe to resize private or work images.
Is this tool free?
Yes — resizing GIF images here is completely free, with no watermark, no account, and no limit on how many you process.