What is a .JXR file?
JXR is a JPEG XR image, Microsoft’s high-quality successor to JPEG.
- Did you know
- JPEG XR began life as Microsoft’s HD Photo, which was itself first announced as Windows Media Photo.
- A JPEG XR image can be split into tiles that decode independently, so regions can be cropped or rotated without unpacking the whole file.
- JPEG XR natively supports high dynamic range and more than 8 bits per channel, which is why it was adopted for some HDR screenshots and wide-gamut imaging.
- What Analyser reads
- Decode and preview extra still-image formats in pure JavaScript - Truevision TGA, QOI, Netpbm (PPM/PGM/PBM), PCX, farbfeld, WBMP, XBM/XPM, Sun Raster and SGI are fully rendered - and read header metadata from codec-heavy formats: Radiance HDR, DirectDraw Surface (DDS) game textures, OpenEXR, JPEG 2000, JPEG XR, EPS/PostScript, Windows WMF/EMF metafiles, Apple ICNS icons, CUR/ANI cursors, MNG and Lottie animations.
- Depth of analysis
- .JXR is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .JXR file
- Drag a .JXR file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.