Ani-ST vs SVG Format Comparison
Ani-ST
Ani ST Animation Script
image/x-ani-st
VS
Scalable Vector Graphics
image/svg+xml
SVG
A complete technical comparison of Ani ST Animation Script and Scalable Vector Graphics — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.
SVG wins on browser support
Feature Support
| Feature | Ani-ST | SVG |
|---|---|---|
| Transparency (Alpha) | ✕ No | Yes |
| Animation Support | Yes | Yes |
| Progressive Loading | ✕ No | ✕ No |
| HDR Support | ✕ No | Yes |
| EXIF Metadata | ✕ No | ✕ No |
| ICC Color Profile | ✕ No | ✕ No |
Ani ST Animation Script
image/x-ani-st
Extension
.scr.str
Container
Text-based Scripting Language
Compression
Uncompressed (Plain Text Script)
Algorithm
None
Color Depth
Atari ST Indexed Palette (up to 16 colors)
Developed by
Jim Kent (Published by Antic Software)
Released
1987
Magic Bytes
Scalable Vector Graphics
image/svg+xml
Extension
.svg.svgz
Container
XML Document
Compression
Uncompressed (Plain Text XML) / Lossless (GZIP via .svgz)
Algorithm
None (for .svg)GZIP (for .svgz)
Color Depth
Vector (Independent of bit-depth), CSS Colors (HEX, RGB, HSL, Display-P3)
Developed by
World Wide Web Consortium (W3C)
Released
2001
Magic Bytes
3C 73 76 67 (for <svg) / 3C 3F 78 6D 6C (for <?xml)
Browser Support Comparison
| Browser | Ani-ST | SVG |
|---|---|---|
Chrome
|
✕ |
✓ All
|
Firefox
|
✕ |
✓ All
|
Safari
|
✕ |
✓ All
|
Edge
|
✕ |
✓ All
|
IE (Legacy)
|
✕ |
✓
|
Ani-ST
Ani-ST Strengths
- Produced incredibly small file sizes by storing rendering instructions (vectors) rather than raw raster frames, making it ideal for floppy disks
- The human-readable script format allowed advanced users to manually edit animation paths and parameters directly in a text editor
Limitations
- Completely obsolete and inherently tied to the hardware limitations of the Atari ST ecosystem
- The generic .scr and .str extensions conflict with dozens of other historical and modern formats, making file identification a major challenge
- Zero native support in modern operating systems, web browsers, or standard graphics software
SVG
SVG Strengths
- Provides infinite resolution scalability, looking perfectly crisp on high-DPI (Retina) displays without increasing file size
- Extremely lightweight compared to raster formats for flat graphics, logos, and UI elements
- Can be manipulated dynamically via the browser's CSS and JavaScript engines (DOM integration)
Limitations
- Unsuitable for complex photographic images or photorealistic textures
- Poses critical security vulnerabilities (XSS and XML External Entity attacks) if user-uploaded SVGs are not heavily sanitized
- Rendering performance degrades significantly if the SVG contains tens of thousands of complex nodes or deeply nested paths
When to choose which format
Ani-ST
Use Ani-ST when…
- Atari ST Retrocomputing Archival
- Vector Animation Scripts
- 1980s Computer Graphics History
SVG
Use SVG when…
- Web Logos & UI Icons
- Responsive Web Design Elements
- Interactive Data Visualizations (D3.js)
- CSS and SMIL Web Animations
Convert & Edit Online
Free online web tools for Ani-ST and SVG files.
Free Image Resizer
Editor
Resize, scale, crop, and modify dimensions for any photo or graphic.
Use Tool
Image Metadata Remover
Privacy
Clean EXIF, camera, lens, and location tags from your photos.
Use Tool
WebP to JPG Converter
Universal
Convert modern web images to universal high-compatibility JPG.
Use Tool
Compress WebP Images
Optimizer
Reduce image file sizes for faster web performance.
Use Tool
SVG to WebP Converter
Rasterize
Rasterize vector SVG files into crisp, modern WebP images.
Use Tool
WebP to SVG Converter
Vectorize
Trace and convert WebP images into vector SVG paths.
Use Tool