Compare
JPEG XL vs PNG
PNG is a widely supported lossless raster format with transparency. JPEG XL is a newer image coding format with different compression and feature options, but client support must be checked. The right choice depends on editing, delivery, and fallback needs.
Which format should you choose?
Use PNG when broad support and established transparent-image workflows matter; consider JPEG XL only where target clients support it and tests confirm the needed features.
Good fit for JPEG XL
Evaluating image storage and delivery
- Workflows with confirmed JPEG XL support
Good fit for PNG
UI graphics · Screenshots · Transparent images
- Images requiring transparency
- Text and line art
Basic information
| Field | JPEG XL | PNG |
|---|---|---|
| Extension | .jxl | .png |
| MIME type | image/jxl | image/png |
| Common uses | Evaluating image storage and delivery | UI graphics · Screenshots · Transparent images |
| How to open | Open it in a JPEG XL-capable viewer or editor. For the web, verify browser and CDN support. | Most operating-system viewers, web browsers, and image editors can open PNG files. |
| Export or convert | For compatible delivery, convert to JPEG, PNG, WebP, or AVIF and check quality, transparency, and metadata. | Export PNG to JPEG only when transparency and lossless quality are no longer needed. Keep the original PNG for editing, and use a proper export command rather than changing the filename extension. |
Choose by use case
Workflows with confirmed JPEG XL support
Evaluating image storage and delivery
JPEG XLImages requiring transparency
UI graphics · Screenshots · Transparent images
PNGText and line art
UI graphics · Screenshots · Transparent images
PNGKey point 1
PNG has broad support and lossless encoding for raster images.
More on the differencesKey point 2
JPEG XL has different coding options and can represent transparency.
More on the differencesMore on the differences
Test representative images in target viewers and browsers, checking transparency, color, animation if relevant, and visual fidelity. Keep source assets and a compatible fallback before changing a production pipeline.
- PNG is a common interchange format for screenshots, graphics, and transparent assets.
- JPEG XL may offer different size-quality trade-offs depending on the encoder and content.
- Converting formats can affect metadata and features; renaming an extension is not conversion.
Frequently asked questions
Is JPEG XL always smaller than PNG?
Not for every image or encoder setting; benchmark the actual assets and verify client support.