HelloResizer

Resize GIF Images Online, Free

Resize GIF files to any dimension. 100% in your browser — no uploads required.

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How to Resize a GIF File

  1. Drop your GIF files — Drag and drop or click to select GIF images from your device.
  2. Set your target size — Choose exact pixel dimensions, scale by percentage, or set a maximum longest edge.
  3. Download instantly — Click “Resize” and download your resized files.

Why Resize GIF Images?

GIF remains popular for simple graphics and legacy compatibility. Resizing your GIF files helps you:

  • Reduce file size — Smaller dimensions significantly reduce GIF file size, improving page load times.
  • Fit design constraints — Resize GIFs to match specific layout requirements or thumbnail dimensions.
  • Email compatibility — Many email clients have strict size limits. Resizing ensures your GIFs display correctly.

About the GIF Format

GIF (Graphics Interchange Format) uses lossless compression with a limited palette of up to 256 colours. It supports basic transparency and animation.

  • Compression: Lossless (LZW)
  • Colour depth: Up to 256 colours per frame
  • Transparency: Binary (on/off, no semi-transparency)
  • Best for: Simple graphics, icons, basic animations

For photographs or images with many colours, consider using JPG or WebP instead for much smaller file sizes and better quality.

Frequently Asked Questions

Can I resize animated GIFs?
Our tool resizes the first frame of GIF files. For animated GIF resizing with all frames preserved, a specialised animated GIF tool is needed. For static GIFs, our resizer works perfectly.
Will resizing a GIF reduce its quality?
GIF uses lossless compression with a 256-colour palette. Downscaling preserves all available colours. The main limitation is GIF's 256-colour limit, not the resizing process.
Should I use GIF or WebP for web images?
For static images, WebP is almost always better — it supports millions of colours and produces smaller files. GIF is mainly useful for simple animations and maximum compatibility with legacy systems.
Can I resize multiple GIF files at once?
Yes. Drop all your GIF files at once and resize them in a single batch. Use our image resizer for large batches with ZIP download.