luach

Jewish Date is a fast and modern 2kB JavaScript library that provides a simple and efficient Gregorian-to-Hebrew and vice versa date converter.

Multi-tenant Android app + home-screen widgets for any shul: minyanim, shiurim, zmanim, Shabbos times, and weather. One APK serves every shul on the registry. Jetpack Glance + Compose, Supabase, KosherJava.

C library for Jewish calendar computations: date conversion, festivals and fasts, zmanim, Torah readings and haftarot. Powers the Hebrew Calendar Zmanim app.

Java library for Jewish calendar computations: date conversion, festivals and fasts, zmanim, Torah readings and haftarot, daily learning. Powers hebrewcalendar.net.

רב לוח - לוח שנה עברי-לועזי לחלונות Rav Luach – a Hebrew/Gregorian calendar for Windows: Jewish holidays, halachic times, birthdays and yahrzeits, and printable calendars. Free for personal use. (Hebrew UI)