JPEG XL to AVIF — Optimize JXL for Web Delivery
Convert JPEG XL to AVIF for broader browser support. Make JXL images web-ready with a widely supported format.
Drop JPEG XL files here or click to select
.jxl (multiple files)
Settings
Files
Converting...
Preparing...
Format comparison
JPEG XL is a newer image format designed to support both lossless and lossy compression modes. Support can vary by browser and toolchain.
Pros
- ✓ Supports both lossless and lossy modes
- ✓ Designed for high compression efficiency across content types
- ✓ Suitable for archiving with metadata when supported
Cons
- ✗ Limited browser support
- ✗ Developing tool ecosystem
AVIF (AV1 Image File Format) is a modern image format that targets high compression efficiency while preserving quality. Depending on the environment, encoding/decoding can feel heavier than older formats.
Pros
- ✓ Strong compression efficiency
- ✓ Can support HDR / wide color in supported pipelines
- ✓ Transparency support
Cons
- ✗ Slow encoding
- ✗ Limited browser support
When to Convert JPEG XL to AVIF
Convert JPEG XL to AVIF for distribution on AVIF-capable platforms. Choose based on your target support matrix.
Technical Format Details
JPEG XL Technical Specifications
Technical details
JPEG XL is designed to support both lossless and lossy compression. It can be attractive for experiments and archiving, but real-world support still varies by browser and app.
Good for
- Testing/archiving: Trying a next-gen format where supported- Fallback conversions: Converting back to PNG/JPEG for compatibility
Notes
- Compatibility: Confirm the recipient platform supports JXL- Publishing: WebP/JPEG/PNG is often the safer default for the web
Reference: JPEG XL (JPEG Committee)
AVIF Technical Specifications
Technical details
AVIF is a modern image format often used for web optimization. It can be very efficient for photos, but performance and support vary across browsers and apps.
Good for
- Web delivery: Smaller files on supported platforms- Photos: Keeping quality while reducing size
Notes
- Performance: Encoding/decoding can feel heavier (split large batches when needed)- Compatibility: Not every environment can open AVIF — keep WebP/JPEG fallbacks if required
Reference: AOM: AVIF Specification
How to Use
Add files
Drop or click to select your JPEG XL files (multiple supported)
Confirm output
Default is AVIF. You can change to another supported output format if needed.
Adjust options
Set quality, resize, and metadata options only if you need them.
Convert & download
Download each file, or download everything as a ZIP for batch outputs.
FAQ
Why convert JXL to AVIF?
JXL has limited browser support, but AVIF is widely supported in Chrome, Firefox, and Safari. AVIF is more practical for web publishing.
How does file size change?
Roughly comparable, with AVIF sometimes slightly larger. Both are efficient next-gen formats.
Can quality be maintained?
Converting at high quality settings (90+) maintains quality at a practically imperceptible level.
Can I keep Exif metadata?
When "Keep Exif/Metadata" is ON, we try to carry over things like capture time, camera info, and GPS where possible. Some tags may be dropped depending on the input, output format, and browser environment. Turn it OFF if you want to remove location data before sharing.
Can I convert multiple files at once?
Yes. You can select multiple files, convert them in one run, and download each file individually. For multiple outputs, you can also download everything as a ZIP. For very large batches, splitting into smaller runs is more stable.
Are my images uploaded to a server?
No. Conversion runs locally in your browser, and your images are not sent to an external server.
What if conversion fails or is slow?
Some formats (like HEIC/HEIF) depend on browser support. If it fails, try another browser, reduce the number of files, or resize before converting.
Why do colors sometimes shift after conversion?
Differences in decoding/encoding and color handling can cause small shifts. For critical images, compare the output against the original.
References
- W3C: PNG 3rd Edition
Official PNG/APNG specification reference.
- AOM: AVIF Specification
Normative AVIF container and coding behavior.
- JPEG Committee
Primary standards source for JPEG and JPEG XL.
- Google Developers: WebP
Reference for WebP encoding and support behavior.
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Remove photo metadata like GPS and date taken before sharing. (HEIC/JXL supported)
Image Converter & Compressor (HEIC/WebP/AVIF/JXL)
Convert to JPEG/PNG/WebP/AVIF/JXL with quality control, plus format-specific pages for common pairs.
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