Resize an Animated GIF
Change a GIF's width and height without breaking the animation — crop it square for a Discord or Slack emoji, fit it to a Twitch emote, or halve it for a chat. Runs on your device; nothing is uploaded.
Updated September 2026 · Free · Works entirely in your browser
Why resizing a GIF is harder than resizing a photo
An animated GIF is not one picture but a stack of frames, and most GIFs save space by storing only the part of each frame that changed, laid over the frames before it. Shrink those patches one at a time and they stop lining up, which is why some quick resizers leave ghosting or flicker behind. This tool first rebuilds every frame in full, exactly as a browser would show it, then scales the whole frame with high-quality smoothing and encodes a fresh GIF — each frame keeps its original delay, and the loop setting is kept as endless.
Keeping the shape right
Leave one side at 0 and the other is worked out from the original shape. A 480 × 270 GIF resized to a width of 128 becomes 128 × 72, because 270 × 128 ÷ 480 = 72. When you set both sides and the shape differs, choose what gives: Crop to fill trims the edges (a 480 × 270 GIF cropped square keeps the middle 270 × 270, starting 105 px in from the left, then scales it to your size), Fit inside keeps everything and pads the rest with transparency, and Stretch distorts it to the exact box.
Emoji and emote sizes
The presets set the size, the crop and a file-size check in one step. These were each platform's published limits in September 2026; platforms change them, so check the upload screen if a file is refused.
| Preset | Pixels | File limit checked | Crop |
|---|---|---|---|
| Discord emoji | 128 × 128 | 256 KB | Crop to fill |
| Discord sticker | 320 × 320 | 512 KB | Fit inside |
| Twitch animated emote | 112 × 112 | 1 MB | Crop to fill |
| Slack emoji | 128 × 128 | 128 KB | Crop to fill |
What happens to file size
GIF size follows pixel count far more than it follows dimensions: halve the width and height and only a quarter of the pixels remain, and the file shrinks by a broadly similar proportion (not exactly, because how well each frame compresses depends on the picture). On top of that, pixels that do not change from one frame to the next are written as transparent, so a GIF with a still background shrinks further. If you still need it smaller — a Discord emoji over 256 KB, say — the GIF compressor reduces colours and frames until it fits a target.
When a GIF is the wrong format
For posting a clip on social media, a video is far smaller and sharper: the GIF to MP4 converter handles that. For still images — JPG, PNG or WebP — use the image resizer, and to turn an animated WebP sticker into a GIF first, use WebP to GIF.
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Frequently Asked Questions
Everything you need to know about image conversion.