Resize GIF Online Free
Change GIF width and height by pixel — no upload, 100% browser-based
Drop image here or click to upload
GIF, JPG, PNG, WebP, HEIC — max 20MB
You can also paste an image (Ctrl+V)
Resizing GIF Images — What to Expect
GIF (Graphics Interchange Format) is a legacy format from 1987 still widely used for short animations in messaging apps, social media reactions, and forum posts. Resizing a GIF changes its pixel dimensions — making it fit within platform upload limits or display constraints.
Because browsers cannot re-encode animated GIF frames through the Canvas API, this tool outputs GIF files as PNG — a lossless, high-quality static image at the new dimensions. If you need to reduce animated GIF file size while preserving the animation, use our GIF Compressor instead.
When You Need to Resize a GIF
Profile avatars
Discord and Slack accept animated GIF avatars up to 128×128px. If your GIF is larger, resize the static version to fit and re-animate it in your GIF editor, or use the compressed smaller original.
Forum and community posts
Forum platforms like Reddit and phpBB display inline images at 600–800px maximum width. Oversized GIFs are scaled down by the browser, but pre-resizing speeds up page load.
Email signatures and banners
Animated GIF banners in emails are common for marketing. Standard email banner dimensions are 600px wide. Resize the static frame here and re-animate in a dedicated GIF tool.
Messaging apps
WhatsApp converts GIFs to MP4 for playback. Telegram displays GIFs up to 1280px. If your GIF exceeds platform limits, reduce dimensions to stay within the accepted range.
GIF vs MP4 vs WebP for Animations
| Format | Animation | File size | Best platform |
|---|---|---|---|
| GIF | Yes (256 colors) | Large | Email, forums, legacy |
| MP4 / WebM | Yes (full color) | 5–10× smaller than GIF | Web, social, WhatsApp |
| Animated WebP | Yes (full color) | 60–70% smaller than GIF | Chrome, modern browsers |
| PNG (static) | No | Small–medium | Email, web, universal |
Related Tools
- Compress GIF Online — reduce animated GIF file size while preserving animation
- GIF to JPG — convert GIF to JPEG for email and web
- GIF to PNG — convert GIF to PNG with transparency
- Resize Image — resize any format (JPG, PNG, WebP) to custom dimensions
- Resize Image in KB — resize to an exact file size target
Frequently Asked Questions
Can I resize an animated GIF and keep the animation?▼
Browsers cannot re-encode animated GIF frames via the Canvas API, so this tool outputs a static PNG of the first frame. To resize an animated GIF while preserving animation, use a desktop tool like GIMP or Photoshop. To reduce animated GIF file size, use our GIF Compressor.
What format does the resized GIF download as?▼
GIF files are output as PNG because browsers cannot re-encode GIF animation through the Canvas API. PNG is lossless and produces a high-quality static image at the new dimensions.
How do I reduce GIF file size without losing animation?▼
Use our GIF Compressor tool, which reduces colors, optimizes frame differences, and optionally skips frames to make animated GIFs up to 70% smaller while keeping the animation running.
What is the maximum GIF size for Discord?▼
Discord server emojis must be under 256KB and 128×128px. Profile avatars (Nitro) accept animated GIFs up to 8MB. Server stickers accept GIFs up to 500KB at 320×320px.
Should I use GIF or MP4 for web animations?▼
MP4 (or WebM) is dramatically better than GIF for web animations — 5–10× smaller file size at better quality with full color. Use GIF only when the platform requires it (email, some forums). For web pages, always prefer <video autoplay loop muted> with MP4/WebM.
Are my GIF files uploaded to a server?▼
No. All processing happens entirely in your browser using the Canvas API. Your files are never sent to any server.