What is a KRA file?
A .KRA file is primarily known as a Krita Image Document. It is the native file format used by Krita, a popular open-source digital painting application. These files save the entire workspace of a digital artist, including raster layers, vector layers, masks, color palettes, and metadata. Internally, a .KRA file is a standard ZIP compressed archive. This archive contains an XML document that defines the project structure and separate folders for the image layer data.
How to open KRA files?
The standard method to open and edit a .KRA file is by using Krita. However, if you only need to view the file or do not have the software installed, viewer.online/kra analyzes .KRA files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. Because the format is built on ZIP compression, you can also rename the .KRA extension to .ZIP and open it with archive software like 7-Zip or use the command-line tool `unzip` to inspect the internal files.
Best practices and troubleshooting
A common issue with .KRA files is compatibility, as many standard photo editors do not support them natively. If your file becomes corrupted or Krita cannot open it, you can often recover a flattened version of your artwork by extracting the archive and locating the `mergedimage.png` file inside. For sharing your artwork with clients or using it in other software, we recommend converting your .KRA file to standard formats like .PSD, .PNG, or .JPG using convert.guru.
Software and tools
While Krita is the best tool for editing, other tools can help you manage these files. Image viewers like XnView MP offer preview support. For developers and technical users, Python libraries like `zipfile` can extract the internal XML structure for automated data processing.
Summary
viewer.online/kra directly opens and previews .KRA files in the browser, eliminating the need to install software or troubleshoot compatibility issues.