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IMAGE
BPG Converter
Convert BPG files with ConverterHQ using workflows tuned for image compatibility, predictable output, and practical downstream use.
Quality and compatibility profile
Core technical and historical facts used for conversion quality, compatibility decisions, and SEO uniqueness.
| Feature | Fact sheet |
|---|---|
| Category | IMAGE |
| Extensions | bpg |
| MIME types | image/bpg |
| Created | 2014 |
| Inventor | Fabrice Bellard |
| Status | active |
| Compression type | HEVC intra-frame |
| Color Depth | 24-bit |
| Transparency support | ❌ |
| Lossless And Lossy | ✅ |
| Animation support | ✅ |
| High Compression Ratio | ✅ |
| Layer support | ❌ |
| Vector scaling | ❌ |
| Reflowable text | ❌ |
| Multitrack content | ❌ |
| Camera raw data | ❌ |
| HDR content | ✅ |
| Structured data | ❌ |
| Streaming delivery | ❌ |
About this format
BPG format context
Format: BPG
Overview
BPG matters because it was an explicit attempt to replace JPEG with a more compression-efficient still-image format while keeping practical image features such as alpha, metadata, higher bit depths, and optional animation.
Publishers wanted a still-image format that could beat JPEG on quality-per-byte without discarding common image features or forcing every asset into a video container.
BPG is now mostly a niche technical and conversion format, but it remains a useful historical reference point in the search for better general-purpose still-image compression.
BPG is closely associated with Fabrice Bellard.
BPG is usually selected for workflows that center on capture ingest, editing, web or print delivery.
Typical Workflows
- capture ingest
- editing
- web or print delivery
Common Software
- ImageMagick
- BPG encoder/decoder tools
- technical conversion workflows
Strengths
- Higher compression efficiency than legacy JPEG in many cases.
- Supports alpha, metadata, animation, and higher bit depths.
- Designed to preserve still-image workflow expectations rather than only video playback assumptions.
Limitations
- Never achieved the browser, device, or platform support needed for mainstream adoption.
- Strong HEVC lineage complicated the format's practical ecosystem story.
- Usually appears today as a conversion edge case rather than a preferred delivery target.
Related Formats
- JPG
- PNG
- WEBP
- AVIF
Interesting Context
BPG arrived in the mid-2010s when image engineers were looking for better post-JPEG compression before AVIF and JPEG XL had ecosystem momentum.
Experimental and niche web graphics ecosystem.
Requires a JavaScript decoder for browser display due to lack of native browser support.
Used in image compression research and specialized encoding pipelines.
Status: active. Introduced: 2014. Invented by: Fabrice Bellard. Stewarded by: Fabrice Bellard.
How BPG fits into workflows
Workflow role: BPG
High-efficiency image encoding for maximum compression at JPEG-class quality, image compression research, and specialized pipelines where HEVC infrastructure is available.
History of BPG
Format history: BPG
BPG arrived in the mid-2010s when image engineers were looking for better post-JPEG compression before AVIF and JPEG XL had ecosystem momentum.
Original problem: Publishers wanted a still-image format that could beat JPEG on quality-per-byte without discarding common image features or forcing every asset into a video container.
Why BPG still matters
Current role: BPG
BPG matters because it was an explicit attempt to replace JPEG with a more compression-efficient still-image format while keeping practical image features such as alpha, metadata, higher bit depths, and optional animation.
Modern role: BPG is now mostly a niche technical and conversion format, but it remains a useful historical reference point in the search for better general-purpose still-image compression.
When to use BPG
- capture ingest
- editing
- web or print delivery
Advantages of BPG
- Higher compression efficiency than legacy JPEG in many cases.
- Supports alpha, metadata, animation, and higher bit depths.
- Designed to preserve still-image workflow expectations rather than only video playback assumptions.
Limitations of BPG
- Never achieved the browser, device, or platform support needed for mainstream adoption.
- Strong HEVC lineage complicated the format's practical ecosystem story.
- Usually appears today as a conversion edge case rather than a preferred delivery target.
Formats related to BPG
BPG technical profile
| Feature | Fact sheet |
|---|---|
| Category | image |
| Extensions | .bpg |
| MIME types | image/bpg |
| Created year | 2014 |
| Inventor | Fabrice Bellard |
| Status | active |
| color_depth | 24-bit |
| supports_transparency | False |
| compression_type | HEVC intra-frame |
| lossless_and_lossy | True |
| supports_animation | True |
| high_compression_ratio | True |
| supports_layers | False |
| supports_vector_scaling | False |
| supports_reflowable_text | False |
| supports_multitrack | False |
| camera_raw | False |
| hdr_capable | True |
| structured_data_capable | False |
| streaming_ready | False |
| sources | {'url': 'https://en.wikipedia.org/wiki/Better_Portable_Graphics', 'title': 'Better Portable Graphics', 'relevance': 'Format overview', 'source_type': 'reference'}, {'url': 'https://bellard.org/bpg/', 'title': 'BPG official', 'relevance': 'Official site', 'source_type': 'official'} |
BPG quality and compatibility
Format profile: BPG
Size profile: medium. Quality profile: depends. Editability profile: moderate. Compatibility profile: broad. Archival profile: moderate. Metadata profile: moderate. Delivery profile: strong. Workflow profile: delivery. Status: active.
Notable capabilities: animation support, HDR content.
Software that opens BPG
- ImageMagick
- BPG encoder/decoder tools
- technical conversion workflows
Conversion options
FAQs
Q: What is BPG typically used for?
A:
BPG is commonly used for capture ingest, editing, web or print delivery.
Q: What are the advantages of BPG?
A:
BPG is broadly compatible across common software.
Q: What should I watch out for when converting BPG?
A:
Check output quality and compatibility on representative sample files.
Sources
Format overview
Official site