How to view a .J2K file online
No app, no account, no upload.
Open your .J2K
Drag a .J2K file from your scanner, camera or archive onto the viewer, or choose it from your device. It's decoded right here.
View and inspect
Flip through the pages of a multi-page file, zoom into fine detail, and read its compression, color and print-resolution details.
Save a copy
Export the page you're viewing as PNG, JPG or WEBP that opens on any phone or computer.
What is a .J2K file?
Everything worth knowing about JPEG2000 code stream image.
A .J2K file is a raster image created by the Joint Photographic Experts Group. It contains visual data formatted using the JPEG 2000 standard. This type of image can be opened with various software applications, including Adobe Photoshop, GraphicConverter, and XnView.
Programs that open .J2K files
- Windows
- IvanView, XnView, Adobe Photoshop, QuickTime Player, PaintShop Pro, CorelDRAW
- macOS
- Adobe Photoshop, QuickTime Player, GraphicConverter
| Developer | Joint Photographic Experts Group |
|---|---|
| Category | Images |
Related viewers
More free tools for images and graphics.
Frequently asked questions
Is my .J2K file uploaded to a server?
No. Your .J2K file is decoded with JavaScript and WebAssembly. The decoders are downloaded once from a public CDN.
How do I see the other pages of a TIFF?
Use the arrows above the image, the page thumbnails in the side panel, or the [ and ] keys. Every page can be saved separately as PNG or JPG.
Why do some TIFF tags look like numbers?
Tags are stored as raw values. We translate the common ones (compression, color mode, resolution, orientation) and list the rest exactly as they appear in the file.
Can I view GeoTIFF or GeoJP2 maps?
We show the image and tell you it's georeferenced. To see it on a map with coordinates, open it in our Map Viewer.
Is my 16-bit or HDR image shown accurately?
Images with more than 8 bits per channel are scaled to 8 bits for display and export. The original precision is listed in the structure panel.
Was this tool helpful?
Your rating helps us decide which tools to improve next.