SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.

ImageJ2 is a rewrite of ImageJ for multidimensional image data, with a focus on scientific imaging.

The legacy component enables backward compatibility with the original version of ImageJ (1.x). It contains the code necessary to translate between ImageJ and ImageJ2 images, so that ImageJ plugins can be executed faithfully.

This library contains ImageJ's core image data model, based on ImgLib2. It is the primary mechanism by which image data is managed internally by ImageJ2.

SciJava user interface components for Java Swing.

Script Editor and Interpreter for SciJava script languages.

Search framework for SciJava applications.

Molecule Archive Suite (Mars) - core data storage and processing algorithms.

BigDataViewer tools and plugins for Fiji: fusion, deconvolution, registration and data processing.

The framework for quantification of neuronal anatomy

Backend-agnostic OME-Zarr core: PyramidBackend/PyramidContents data model, metadata, and ZarrUtils. Requires an N5 or zarr-java backend at runtime.