Convert ICO to GIF — 256-Color Palette Quantizer
Convert ICO images into 8-bit indexed GIF format. Quantize color palettes for Discord stickers, emojis, and retro graphics.
🔒 100% Secure Client-Side🛡️ Zero Server Uploads🔌 Works Offline
Drag & Drop Images or Videos Here
Upload up to 10 files in bulk. Supports PNG, JPG, WebP, GIF, BMP, ICO, SVG, MP4, and WebM.
⚖️ Technical Format Comparison: ICO vs GIF
Detailed side-by-side analysis of compression algorithms, color depth, transparency, and file size impact
| Technical Specification | ICO (Source) | GIF (Target) |
|---|---|---|
| Full Format Name | Windows Icon File Container | Graphics Interchange Format (CompuServe) |
| MIME Type | image/x-icon | image/gif |
| Compression Method | Embedded Multi-Resolution PNG / BMP bitstreams | Lossless (LZW Algorithm) |
| Color Space & Bit Depth | 32-bit (24-bit RGB + 8-bit Alpha Channel) | 8-bit Indexed Color (Maximum 256 Colors) |
| Alpha Transparency | Yes (Full transparency preserved in modern 32-bit ICO) | Yes (1-bit Binary On/Off Transparency, No Soft Edges) |
| Animation Support | No (Static multi-resolution container) | Yes (Multi-frame Infinite Looping) |
| Typical File Size | Small (Stores 16x16, 32x32, 48x48 icon pixel layers) | Large for Video Clips (uncompressed frames), Small for flat icons |
| Ideal Applications | Website browser tab favicons, Windows desktop application shortcuts | Short looping clips, social media memes, Discord stickers, simple banners |
💡 Conversion Impact Summary:
Quantizes ICO color depth into an 8-bit indexed 256-color palette with adaptive dithering.