What is a .JPC file?
JPC is a raw JPEG 2000 codestream.
- Did you know
- A JPEG 2000 codestream decodes progressively - cut the file short at any point and it still yields a complete image, just at lower quality or resolution.
- JPC has no officially standardised extension - .j2k and .j2c name the same raw codestream and are used interchangeably.
- A JPC codestream is meant to be embedded inside a JP2 wrapper, but it can also be stored on its own as a bare file.
- 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
- .JPC 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 .JPC file
- Drag a .JPC 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.