Animation preserved
The resized result keeps the original timing, duration and repeat behavior.
Resize an animated GIF online
Set exact pixel dimensions or scale by percentage while keeping every frame in the loop.
Drop a GIF here
One GIF · up to 25 MB · up to 300 frames
Choose an animated or static GIF to begin.
Proportions protected
The aspect ratio stays locked by default to prevent stretching.
Processed locally
Every frame is decoded, resized and encoded on this device.
How to resize a GIF
Resizing changes the real pixels in every animation frame.
- 01
Choose one GIF
Select an animated or static GIF within the browser-safe limits.
- 02
Set the new dimensions
Enter width and height, keep proportions locked, or choose a percentage preset.
- 03
Resize and download
Tanumi scales every frame and rebuilds the animated GIF locally.
A genuinely smaller or larger GIF
Changing HTML display size does not reduce the pixels stored in a GIF. This tool re-encodes every frame at the chosen dimensions.
- Fit an animation to a documentation column.
- Create a compact avatar or reaction image.
- Prepare an exact pixel size required by another service.
What resizing changes
Dimensions change while the animation timeline stays recognizable.
Width and heightChanged to the selected output dimensions
Aspect ratioLocked by default; optional stretching is explicit
TimingOriginal frame delays are preserved
LoopOriginal repeat behavior is preserved
SharpnessUpscaling can look soft or pixelated
GIF resizing questions
Will resizing remove the animation?
No. Every frame is resized and exported as a new animated GIF with the original timing and loop behavior.
Should I keep the aspect ratio locked?
Usually yes. Keeping it locked prevents people and objects from looking stretched or squeezed.
Does making a GIF smaller reduce file size?
Usually, because each frame contains fewer pixels. The exact byte change still depends on colors and frame content.
Can I enlarge a small GIF?
Yes, within the output limit, but enlargement cannot recreate missing detail and may look soft or pixelated.
Is the GIF uploaded?
No. Decoding, resizing and encoding happen locally in your browser.