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GIF Resizer

Resize one animated GIF to exact dimensions via FFmpeg Lanczos (default), Bilinear, or Nearest — width presets 100/150/200/320/480/640px or custom, height auto-follows with aspect lock ON (unlock to stretch). W/H prefill from the source; saves as <name>-resized.gif with animation intact. Photos never leave your device — processing runs locally in your browser with Canvas and WebAssembly.

Runs on FFmpeg

100% Local Browser Native

How to Use the GIF Resizer

1. Upload one GIF

Single animated GIF; W/H prefill from the parsed binary header.

2. Set width and scaler

Preset widths 100–640px or custom; aspect lock ships ON (height field locked). Pick Lanczos best, Bilinear fast, or Nearest for pixel art.

3. Resize and download

Saves as <name>-resized.gif; animation and timing preserved.

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Frequently Asked Questions

Will resizing break my GIF animation?

No. The resizer preserves all frames and their timing. Your animation plays at the same speed — only the frame dimensions change.

Can I make a GIF smaller without losing animation?

Yes. Reducing dimensions shrinks the file size proportionally. A 500x500 GIF resized to 250x250 loses about 75% of its file size while keeping the animation intact.

Does the resizer maintain GIF transparency?

Yes. Transparent pixels in your original GIF remain transparent after resizing. The alpha channel is preserved across all frames.

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Last updated October 2026