The Evolution of Image Formats
The journey from BMP to PNG, from GIF to JPG, and now from JPG to HEIC illustrates the continuous evolution of image technology. Each generation of image formats addresses limitations of its predecessors while introducing new capabilities aligned with contemporary needs. As we stand in 2024, several emerging formats compete to become the next standard, each offering compelling advantages in compression efficiency, feature sets, and capabilities that current formats simply cannot match.
Understanding this evolution isn't just academic - it affects what formats you should use today, how you should archive photos for the future, and which technologies to invest time learning. The next five years will likely see significant shifts in which formats dominate various use cases, from web publishing to professional photography to smartphone defaults.
AVIF: The Current Front-Runner
AVIF (AV1 Image File Format) has emerged as the most promising successor to both JPG and HEIC, backed by major technology companies and seeing rapid adoption across the web ecosystem.
Technical Advantages
AVIF leverages the AV1 video codec, developed by the Alliance for Open Media (including Google, Apple, Mozilla, Microsoft, Amazon, Netflix, and others). This collaborative development ensures broad industry support and freedom from patent licensing fees that plague older formats.
Key technical benefits include:
- Superior compression:AVIF files are typically 50% smaller than equivalent JPG files and 20% smaller than HEIC at the same quality level
- Wide bit depth support:Handles 8-bit, 10-bit, and 12-bit color depth for professional photography and HDR content
- HDR support:Native high dynamic range capabilities for modern displays
- Animation support:Can replace GIF with superior compression and quality
- Transparency:Alpha channel support like PNG but with much better compression
- Lossless compression option:Choose between lossy and lossless encoding
In practical terms, AVIF can deliver the same visual quality as JPG in half the file size, or significantly better quality at the same file size. For websites managing bandwidth costs and users on mobile data plans, this efficiency matters tremendously.
Current Browser and Platform Support
AVIF support has expanded rapidly:
- Chrome:Full support since version 85 (August 2020)
- Firefox:Full support since version 93 (October 2021)
- Safari:Full support since version 16 (September 2022)
- Edge:Supported since version 121 (January 2024)
- Android:Native support from Android 12 onward
- iOS/iPadOS:Support since iOS 16
This broad browser support means AVIF is already viable for web use, particularly with JPG fallbacks for older browsers. Content delivery networks like Cloudflare and image optimization services have added AVIF support, making implementation straightforward for web developers.
Limitations and Challenges
Despite its advantages, AVIF faces obstacles:
- Encoding speed:Creating AVIF files is significantly slower than JPG or even HEIC, though hardware acceleration is improving
- Software support:Adobe Photoshop and many photo editors still lack native AVIF support (as of early 2024)
- Complexity:More complicated format than JPG, potentially affecting long-term compatibility
- Decoding performance:Requires more CPU power to display, though modern devices handle it well
JPEG XL: The Comprehensive Solution
JPEG XL (JXL) represents a different approach - creating a true next-generation replacement for JPG that addresses every limitation while maintaining compatibility with existing workflows.
Design Philosophy
JPEG XL was developed by the Joint Photographic Experts Group (the same organization behind the original JPEG) specifically as a comprehensive upgrade to the 30-year-old JPG format. Unlike AVIF which repurposes video codec technology, JPEG XL was designed from scratch as a still image format.
Technical Capabilities
- Exceptional compression:60% smaller than JPG at equivalent quality, competitive with AVIF
- Lossless JPG recompression:Can losslessly convert existing JPG files to smaller JXL files and back without quality loss - a unique capability
- Fast encoding and decoding:Significantly faster than AVIF, comparable to or better than JPG
- Progressive decoding:Images load gradually from low to high quality, improving perceived performance
- Extremely high bit depth:Supports up to 32-bit per channel for professional workflows
- Advanced features:Layers, animations, wide color gamut, HDR, and more
- Responsive images:Single file can contain multiple resolutions for different screen sizes
Adoption Challenges
Despite technical superiority, JPEG XL faces significant adoption hurdles:
- Browser support uncertainty:Chrome added then removed support in 2022-2023, creating uncertainty
- Corporate backing:Google's decision to deprioritize JPEG XL in favor of AVIF has slowed adoption
- Safari support:Apple has not yet implemented JPEG XL support
- Network effects:Without browser support, few services implement it, creating a chicken-and-egg problem
However, the format retains strong support from professional photography communities and archivists who appreciate its lossless JPG conversion and superior feature set. Firefox maintains support, and specialized software increasingly includes JPEG XL capabilities.
WebP2: Google's Next Generation
WebP2 is Google's successor to WebP (which itself was meant to replace JPG but achieved only partial adoption). Learning from WebP's mixed success, WebP2 aims higher with more aggressive compression and capabilities.
Current Status
As of 2024, WebP2 remains in development and experimental stages. Google has not committed to a release timeline, and the format's future remains uncertain. The company's shift in focus to AVIF may mean WebP2 never reaches production.
Potential Advantages
If completed, WebP2 promises:
- Better compression than both AVIF and JPEG XL
- Faster encoding than AVIF
- Backward compatibility considerations with WebP
- Google's engineering resources and platform integration
However, the format's uncertain status makes it difficult to recommend for current planning purposes.
Other Emerging Formats
Several specialized formats address specific use cases:
JPEG XS
Designed for low-latency professional video workflows rather than consumer photography. Offers fast encoding/decoding at the expense of compression efficiency. Unlikely to impact consumer photography.
High Efficiency Image Format (HEIF) Evolution
HEIC is actually a variant of HEIF, which continues evolving. Future HEIF versions may incorporate newer codecs like VVC (Versatile Video Coding) for even better compression, though patent licensing concerns create adoption barriers.
💡 Future-Proofing Your Photos
While new formats emerge, JPG remains the safest archival format with guaranteed long-term compatibility. Convert your HEIC files to JPG using HEICdrop.net to ensure your photos remain accessible regardless of future format changes. Completely free and private - your files never leave your browser.
Browser and Platform Adoption Timelines
Understanding adoption timelines helps predict which formats will dominate the near future.
Web Ecosystem (Next 1-2 Years)
- AVIF:Continued growth as the primary JPG alternative for web images
- WebP:Remains widely used but gradually superseded by AVIF
- JPEG XL:Uncertain future without major browser support
- JPG:Continues as universal fallback and primary format
Mobile Photography (Next 2-3 Years)
- HEIC:Remains iPhone default, gradually spreading to high-end Android
- AVIF:Potential future default for Android devices
- JPG:Continues as compatibility option
Professional Photography (Next 3-5 Years)
- RAW formats:Continue dominating professional capture
- JPEG XL:May find niche in professional archiving
- AVIF:Growing for web delivery
- TIFF/PSD:Remain standard for working files
What This Means for Different Users
The format landscape affects different user groups in distinct ways.
For Web Developers
- Implement AVIF now:With JPG fallbacks for older browsers
- Continue using WebP:As intermediate fallback
- Monitor JPEG XL:If browser support returns, adoption will be swift
- Use responsive images:Serve appropriate formats based on browser capabilities
For Smartphone Users
- Keep using HEIC:On iPhone for storage efficiency
- Convert for sharing:To JPG when sending to non-Apple users
- Watch for AVIF support:May become camera option on Android devices
- Backup in multiple formats:Consider archiving important photos as both original and JPG
For Photographers
- Continue shooting RAW:For maximum flexibility
- Deliver in client-requested formats:Usually still JPG
- Experiment with new formats:For web galleries and online portfolios
- Maintain JPG archives:For long-term accessibility
For Archivists
- Prioritize JPG for long-term preservation:Simplest format with broadest support
- Convert proprietary formats:HEIC to JPG for archives meant to last decades
- Monitor format standardization:AVIF may become archival standard if adoption continues
- Maintain multiple copies:In different formats for redundancy
Predictions for the Next 5 Years
Based on current trends and technical realities, here's what to expect by 2029:
Likely Scenarios
- AVIF becomes web standard:Replacing JPG as primary web image format for new content
- HEIC remains iOS default:Apple continues using HEIC for iPhone photos
- JPG persists indefinitely:As universal compatibility format, though gradually declining for new content
- Multi-format delivery becomes normal:Websites serve AVIF, WebP, and JPG based on browser capabilities
- Hardware acceleration improves:Making format choice less impactful on performance
Possible Developments
- JPEG XL resurrection:If browser vendors reconsider, could see rapid adoption
- Patent-free importance:Increasing preference for royalty-free formats like AVIF
- AI-enhanced formats:New formats optimized for AI processing and generation
- Cloud-native formats:Designs optimized for streaming and progressive loading
Unlikely but Possible
- Single format dominance:One format replacing all others completely
- JPG obsolescence:JPG becoming truly obsolete within 5 years
- HEIC web adoption:HEIC becoming standard web format (licensing barriers prevent this)
Preparing for the Future
Strategic approaches to navigate format evolution:
For Personal Photo Collections
- Store masters in highest quality format available (HEIC or RAW)
- Maintain JPG copies of important photos for long-term access
- Use cloud services that automatically handle format conversion
- Regularly verify you can still open old photo archives
For Professional Workflows
- Establish format conversion processes for client deliverables
- Stay informed about format support in key software tools
- Test new formats in non-critical projects first
- Document format decisions for future reference
For Developers and Businesses
- Implement responsive image delivery systems
- Monitor format adoption statistics and adjust accordingly
- Invest in CDN and optimization tools that handle multiple formats
- Plan for gradual migration rather than abrupt switches
The Constant: Change
Image format evolution never truly ends. Each generation of formats emerges to address new needs - higher resolutions, better compression, new features, changing use cases. AVIF and its contemporaries won't be the final image formats any more than JPG was. In another 10-15 years, we'll likely see new formats addressing limitations we haven't yet imagined, leveraging technologies that don't exist today.
The key to navigating this evolution is maintaining flexibility: use the best format for each specific purpose today while ensuring critical content remains accessible through widely-supported archival formats. Understanding the landscape helps you make informed decisions about which formats to adopt now and which to watch for future opportunities.
Conclusion
The future of image formats is simultaneously uncertain and predictable. AVIF appears poised to become the dominant web format, offering superior compression and broad support. HEIC will likely remain in the Apple ecosystem for smartphone photography. JPEG XL may succeed in specialized professional niches despite browser support challenges. And JPG, now over 30 years old, will persist as the universal compatibility format for years to come. Rather than a single format replacing all others, we're entering an era of format diversity where the right choice depends on specific use cases, platforms, and requirements. Understanding these emerging technologies and their trajectories helps you make better decisions today while preparing for the inevitable changes tomorrow will bring.
← Back to Blog
© 2024 HEICdrop.net. All rights reserved.