Be sure to read the license.
Java 8 from Oracle or OpenJDK is recommended (the smaller JRE works fine). PhotoGrok now works in Java 11+.
PhotoGrok dynamically organizes and displays photos and other files by metadata (and much more). EXIF operations are powered by ExifTool (included).
Check out my other projects: Mocha - The TRS-80 Color Computer Emulator, Piddle - A Torque Pro Log Viewer and/or The Murder Hornets.