I’ve been developing web-based software since 1995. I’m still maintaining a subset.
Hebcal Jewish Calendar
Hebcal (pronounced HEEB-kal, as in Hebrew calendar) is a free Jewish calendar and holiday web site. We offer a powerful custom Jewish calendar tool that lets you generate a list of Jewish holidays for any year (past, present or future). Also available are a Hebrew date converter, Shabbat candle lighting times and Torah readings (both full kriyah and triennial system), and a page to look up yahrzeits, birthdays and anniversaries.
UTF-8 and Unicode Standards
UTF-8 stands for Unicode Transformation Format-8. It is an octet (8-bit) lossless encoding of Unicode characters