This app lets you browse Japanese era names (nengō) alongside Western calendar years. It's a helpful reference for anyone interested in Japanese history, genealogy, or traditional calendars.

Features include:

- Side-by-side display of Japanese and Western dates
- Optional display of readings, Romanization, Chinese zodiac (eto), and more
- Toggle to show pre-Meiji era names
- Favorites feature to bookmark important dates

Designed for students, researchers, and history enthusiasts.
No internet connection required — everything works offline.