How do I resize an animated GIF to custom width and height?

Upload your GIF, specify target width or height (or use the percentage scale slider: 75%, 50%, 25%), keep aspect ratio locked, and click 'Resize GIF'.

What is the best way to resize a GIF without blurriness?

Our resizer uses high-quality bicubic canvas interpolation to preserve crisp edges and text legibility across all animated frames.

Can I resize a GIF for Discord emoji or avatar limits (128x128 or 256x256)?

Yes. Choose the 128x128 or 256x256 social preset to instantly fit Discord, Slack, and Twitch avatar size requirements.

NexLove Media

GIF Resizer — Resize Animated GIF Dimensions

Resize animated GIF dimensions by pixels or percentage while maintaining aspect ratio and animation frame synchronization.

TL;DR: GIF Resizer — Resize Animated GIF Dimensions is a 100% free browser-based media utility. Scale animated GIF width and height up or down with proportional aspect ratio preservation.

Select GIF to Resize

Understanding GIF Resizer — Resize Animated GIF Dimensions

Resize animated GIF dimensions by pixels or percentage while maintaining aspect ratio and animation frame synchronization. Designed for creators, video editors, audio engineers, web designers, and developers who need instant, high-precision processing without software installation, watermarks, or file uploads.

Mathematical Formula & Technical Methodology

W_{\text{new}} = W_{\text{orig}} \times \text{Scale}, \quad H_{\text{new}} = H_{\text{orig}} \times \text{Scale}

Formula Variables Explained:
Applies bilinear/bicubic resampling interpolation across pixel grid dimensions.

Step-by-Step Worked Example

A 800x600 GIF scaled by 50% resizes to 400x300.

100% Client-Side Privacy Guarantee

All media decoding, manipulation, calculations, and encoding execute locally inside your web browser using HTML5 Canvas, Web Audio API, WebCodecs, Web Crypto, and modern JavaScript engines. Zero server uploads, zero telemetry, and no registration required.

Frequently Asked Questions

: Upload your GIF, specify target width or height (or use the percentage scale slider: 75%, 50%, 25%), keep aspect ratio locked, and click 'Resize GIF'.
: Our resizer uses high-quality bicubic canvas interpolation to preserve crisp edges and text legibility across all animated frames.
: Yes. Choose the 128x128 or 256x256 social preset to instantly fit Discord, Slack, and Twitch avatar size requirements.

Embed This Tool

Add the live GIF Resizer — Resize Animated GIF Dimensions to your own website with this embed code:

<iframe src="https://nexlove.org/embed/gif-resizer.html" width="100%" height="650" style="border:1px solid #e2e8f0;border-radius:12px" title="GIF Resizer — Resize Animated GIF Dimensions — NexLove" loading="lazy"></iframe>

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