BPG vs SVG Format Comparison
BPG
Better Portable Graphics
image/bpg
VS
Scalable Vector Graphics
image/svg+xml
SVG
A complete technical comparison of Better Portable Graphics 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 | BPG | SVG |
|---|---|---|
| Transparency (Alpha) | Yes | Yes |
| Animation Support | Yes | Yes |
| Progressive Loading | ✕ No | ✕ No |
| HDR Support | ✕ No | Yes |
| EXIF Metadata | Yes | ✕ No |
| ICC Color Profile | Yes | ✕ No |
Better Portable Graphics
image/bpg
Extension
.bpg
Container
Custom BPG Header
Compression
HEVC (H.265) Intra-frame / Lossless
Algorithm
HEVC (H.265)
Color Depth
8-bit (Per Channel), 10-bit (Per Channel), 12-bit (Per Channel), 14-bit (Per Channel)
Developed by
Fabrice Bellard
Released
2014
Magic Bytes
42 50 47 FB
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 | BPG | SVG |
|---|---|---|
Chrome
|
✕ |
✓ All
|
Firefox
|
✕ |
✓ All
|
Safari
|
✕ |
✓ All
|
Edge
|
✕ |
✓ All
|
IE (Legacy)
|
✕ |
✓
|
BPG
BPG Strengths
- Exceptional compression efficiency that vastly outperforms standard JPEG at similar quality levels
- Supports high bit depths (up to 14 bits per channel), lossless compression, and alpha channel transparency within a single format
- The official JavaScript decoder allows the format to be rendered on standard HTML5 canvas elements
Limitations
- HEVC (H.265) patent encumbrance prevented native adoption in major web browsers
- Superseded conceptually by the open, royalty-free AVIF format
- Encoding BPG files is computationally intensive and requires specialized command-line tools
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
BPG
Use BPG when…
- High-Efficiency Image Archival
- Bandwidth-Constrained Environments (via JS decoder)
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 BPG 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