Animation-capable destination
Still image output. Animated files use only the first frame; animation is not preserved.
Convert PNG to JPEG XL
- In your browser
- No upload
- Private by design
What happens when you convert PNG to JPEG XL?
HDR display encoding
HDR is rendered to SDR using exposure and Reinhard tone mapping.
Encoding mode
Lossless pixels, lossy pixels and reversible recompression of an eligible JPEG bitstream are separate modes. Exact JPEG reconstruction requires its reconstruction data, not just matching rendered pixels. Quality defaults to 80; adjust it in Advanced options. File size depends on the image and encoder.
PNG
Source
PNG
Portable Network Graphics
Compression: LosslessTransparency: YesMetadata: Exif, ICC, Text
Lossless raster images with precise edges and optional transparency. The PNG standard also defines APNG animation.
Explore PNG format →JPEG XL
Target
JPEG XL
JPEG XL Image Coding System
Compression: Lossy & losslessTransparency: YesMetadata: Exif, XMP, ICC, JUMBF
A JPEG-family image system for lossy and lossless pictures, high precision, alpha and animation.
Explore JPEG XL format →Is PNG → JPEG XL right for you?
Good choice when
- JPEG XL fits your delivery use: High-precision photographic storage.
- Your destination supports the required animation variant.
- You need HDR-capable delivery and can validate its encoding and colour signalling.
- You need a transparency-capable destination and will check its supported variant.
Probably not when
- You require guaranteed animation transfer from the unavailable converter.
- You require guaranteed scene-linear values or HDR appearance.
- You assume format-level alpha support guarantees matching transparent edges.
- You need a guaranteed output file size or archival pixel equality. Encoder settings do not guarantee either.
PNG to JPEG XL conversion details
- Animation-capable destination
- Still image output. Animated files use only the first frame; animation is not preserved.
- HDR display encoding
- HDR is rendered to SDR using exposure and Reinhard tone mapping.
- Transparency representation
- The implemented target supports alpha. Display-pixel processing can round translucent samples; archival sample equality is not promised.
- Encoding mode
- Lossless pixels, lossy pixels and reversible recompression of an eligible JPEG bitstream are separate modes. Exact JPEG reconstruction requires its reconstruction data, not just matching rendered pixels. Quality defaults to 80; adjust it in Advanced options. File size depends on the image and encoder.
- Sample precision & colour
- Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
- Metadata & colour
- Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
- Compression
- PNG: Lossless → JPEG XL: Lossy & lossless PNG: PNG compression is lossless. Palette conversion, resizing or reducing bit depth before encoding can still discard information. Animation is the APNG extension included in the third edition. JPEG XL: Lossless pixels, lossy pixels and reversible recompression of an eligible JPEG bitstream are separate modes. Exact JPEG reconstruction requires its reconstruction data, not just matching rendered pixels.
- Transparency
- Transparency is replaced with white by default. Change the background in Advanced options.
- Animation
- Still image output. Animated files use only the first frame; animation is not preserved.
- Colour depth
- PNG: 1–16 bits/sample → JPEG XL: High-bit-depth samples
- HDR
- PNG: Third-edition signalling → JPEG XL: Supported
- Layers
- JPEG XL: Frame blending; not PSD editing
- Dimensions
- Rendered image dimensions are retained within the converter limits; this tool does not offer resizing. Orientation handling depends on the source decoder.
- Metadata
- Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Common questions
Can the animation be transferred between formats?
Still image output. Animated files use only the first frame; animation is not preserved.
Will HDR automatically survive in JPEG XL?
HDR is rendered to SDR using exposure and Reinhard tone mapping.
Which compression mode will JPEG XL use?
Lossless pixels, lossy pixels and reversible recompression of an eligible JPEG bitstream are separate modes. Exact JPEG reconstruction requires its reconstruction data, not just matching rendered pixels. Quality defaults to 80; adjust it in Advanced options. File size depends on the image and encoder.
Are bit depth and colour values guaranteed to match?
Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.
Will metadata and colour profiles be retained?
Pixel conversion only. Original EXIF, GPS, XMP and ICC profiles are not copied; processing uses 8-bit display pixels.