The short answer
Why use Resize GIF?
Chat apps, forums, and email often cap GIF size, and a smaller frame is the quickest way under the limit. Resizing frame by frame in an editor is slow.
Width (px) starts at 1200 and Height (px) at 800. While Keep aspect ratio is on, the height box is ignored and the height is worked out from the width, so a 600 × 400 GIF set to 300 wide becomes 300 × 200. Every frame is scaled the same way, and delays and the loop setting carry over. The status line shows the new size and file weight.
Halving the width leaves a quarter of the pixels in each frame, which usually cuts the file size sharply. Turning Keep aspect ratio off lets you type both numbers, but anything that does not match the original shape stretches the animation. Scaling also blends neighboring pixels into new shades, and the encoder fits them back into at most 255 colors per frame.
Reduce GIF Frames shrinks the file by dropping every second frame instead of shrinking the picture, and the two can be combined. Crop GIF removes edges rather than scaling the whole frame. For a still JPEG or PNG, Resize Image works without the 1280 pixel cap and also offers larger sizes for print.
Where Resize GIF fits
Chat size limits
Shrink a 1000-pixel GIF to 480 wide so it fits under a messaging app's upload limit.
Email newsletters
Scale a product GIF to 600 pixels wide to match a newsletter column.
Forum signatures
Make an animated banner small enough for a forum's signature size rule.
Start to finish
How to use Resize GIF
- 01Tap Choose GIF and pick the animation, up to 50 MB.
- 02Type the Width (px) you need, since it starts at 1200, and leave Keep aspect ratio on.
- 03Tap Apply changes, check the new file size in the status line, then Download result.
What to expect from Resize GIF
| Check | What it means here |
|---|---|
| Supported input | GIF images |
| Main controls | Frame number, speed, and the crop, rotation, or overlay setting for the tool |
| Output | An animated GIF, single PNG or JPEG frames, or a ZIP of frames |
| Working limit | 50 MB, 300 frames, and 200 megapixels of frames in total |
Resize GIF tips
- Clear the 1200 default before applying, or small GIFs get scaled up.
- Widths above 1280 pixels are lowered to 1280.
- Halving the width leaves a quarter of the pixels per frame.
- Turning Keep aspect ratio off stretches the animation unless both numbers match its shape.
Resize GIF FAQ
Something missing? Ask us.
What is the largest size?
Why did my small GIF get bigger?
Does Resize GIF upload my file?
Is Resize GIF free to use?
Why did Resize GIF fail or look wrong?
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