If New Zealand Changed Its Flag
Makes sense! Semantically interesting too — the underlying code point still represents the country, but the visual could be completely different.
I Can Text You A Pile of Poo, But I Can’t Write My Name
I didn't realize the codepages were incomplete for some languages.
html - RegEx match open tags except XHTML self-contained tags - Stack Overflow
A classic answer. Just don't do it.
Ode to a Shipping Label
Text encoding on the web feels like this sometimes.
List of iOS Emoji
Only displays in Safari, but good for future decoding potentially.
Unicode code converter
Converts Unicode strings into various escape sequences for HTML, URLs, Javascript, etc. along with UTF-8 and UTF-16 hexadecimal.