Resize every frame.
Keep the animation right.

Resize animated GIFs locally with fit, crop, pad or stretch behavior, transparent-edge trimming, pixel-art and high-quality resampling, preserved timing and loop behavior, plus verified export.

Drop GIF files here

Up to 50 files, 200 MB each / 600 MB per queue. Source files remain on your device.

Resize plan

Sizing mode

Width (px)

Height (px)

When aspect ratios differ

Load a GIF to see the target canvas.

Smart presets

Resampling & GIF quality

Resize method

GIF colors

Palette strategy

DitheringOptimize static areas
Uses smaller changed rectangles when the resized animation is fully opaque.

Transparency & animation

Trim transparent outer border
Finds the union of visible pixels across every frame before resizing.

Trim alpha threshold8

GIF transparency cutoff128

GIF transparency is binary. Pixels below this alpha become transparent; higher values become opaque.

Loop behavior

BeforeOriginal

AfterResized

Finished0

Input0 B

Output0 B

Output pixels—

Choose GIF files or load the built-in animated sample.

Quality noteEnlarging cannot recreate missing source detail. Lanczos3 uses premultiplied-alpha resampling to avoid dark transparency fringes; very large frames automatically use the safer bilinear path to protect browser memory.

Resize every frame.Keep the animation right.

Resize every frame.
Keep the animation right.