UTF-8, Explained Simply – YouTube
Posted by jpluimers on 2026/03/04
Cool interesting video: [Wayback/Archive] UTF-8, Explained Simply – YouTube
It covers both history from the late 1800s Baudot Code (also known as ITA1) via 1930s ITA2 and 1950’s EBCDIC / FIELDATA ages through 7-bit ASCII in the 1970s and incompatible UCS-2 (now UTF-16) of the 1990s to the current day and age of UTF-8 (which actually started out on a placemat in 1992).
Though mentioning 8-bit encoding, it skips details of extended ASCII encodings like ISO/IEC 8859 and Windows-1252.
It goes to quite some length on decoding UTF-8 and showing how forgiving the UTF-8 standard is. Yes, it is a self-synchronising code thanks to the venerable Ken Thompson.
Definitely worth watching as it also covers the Zero-width joiner which is not just important for combining Emoji, as it is used by many people nowadays, but got in fact implemented to support various scripts like Arabic script or any Indic script.
Oh, the placemat story: that’s described by Rob Pike in the referenced [Wayback/Archive] The history of UTF-8 as told by Rob Pike.
--jeroen
[Wayback/Archive] UTF-8, Explained Simply – YouTube
https://www.youtube.com/watch?v=vpSkBV5vydg
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