JP2 (JPEG 2000 part 1)
Writableimage
The JPEG 2000 file format (JP2 file format) provides a foundation for storing application specific data (metadata) in association with a JPEG 2000 codestream, such as information which is required to display the image. The JP2 file format encapsulates the JPEG 2000 codestream along with other core pieces of information about that codestream. The building-block of the JP2 file format is called a box; all information contained within the format is contained in boxes. There are several different box types; some boxes contain other boxes. The binary structure of a file is a contiguous sequence of boxes. The start of the first box is the first byte of the file, and the last byte of the last box is the last byte of the file.
Identify it
| Extensions | .jp2 |
|---|---|
| MIME types | image/jp2 |
| Signatures | 0000000c6a5020200d0a870a at byte 0 (JPEG2000) |
| PRONOM | x-fmt/392 |
| Wikidata | Q27979401 |
| Library of Congress | fdd000143fdd000167fdd000168fdd000195fdd000197fdd000212fdd000214fdd000169fdd000193 |
| Apple UTI | public.jpeg-2000 |
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Open it
- DevILOpen source
- GDALOpen source
- ImageMagickOpen source
- libexiv2Open source
- OpenJPEGOpen source
- AbydosOpen source
- ConverseenOpen source
- digiKamOpen source
- ExifToolOpen source
- GIMPOpen source
- imageioOpen source
- JHOVEOpen source
- KolourPaintOpen source
- KPaintOpen source
- PhotoRecOpen source
- TesseractOpen source
- nomacsOpen source
- OpenImageIOOpen source
And 31 more in the JSON record.
Convert it
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| Portable Network Graphics | ImageMagick | Lossless | convert in.jp2 out.pngPixels kept; some metadata, colour profiles or layers may be dropped. |
| Tagged Image File Format | ImageMagick | Lossless | convert in.jp2 out.tifPixels kept; some metadata, colour profiles or layers may be dropped. |
| GIF 89a | ImageMagick | Lossy | convert in.jp2 out.gifReduced to 256 colours. |
| JPEG File Interchange Format 1.02 | ImageMagick | Lossy | convert in.jp2 out.jpgLossy compression. |
| WebP | ImageMagick | Lossy | convert in.jp2 out.webpLossy compression. |
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.