Java script seems to still have a few issues with perfect Mirror image fonts that are in the all Caps
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Stephen Waner - 2014-11-01
Backwards Example : Ƹ Y X W V U T Ƨ Я Ọ ꟼ O И M ⅃ ᐴ Ⴑ I H Ꭾ ᖷ Ǝ ᗡ Ɔ ᙠ A ( The All Cap fonts that don't show as the true fonts are ) G - K - L - P - Q & Z ( instead they appear as ) Ꭾ - ᐴ - ⅃ - O - ꟼ & Ƹ ( All six are in error ) , I spotted these with ease as I am Mirror sighted
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Stephen Waner - 2014-11-01
Stephen: It is not possible to create 100% accurate mirror characters with the Unicode character set. You'd need to create a bitmap image, but then it would not be possible to copy & paste as social media comments.
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Peter Thoeny - 2014-12-10
Check out
http://www.zalgotextgenerator.com/
for another text effect which is quite crazy. Like the other effects posted in this article, this one uses Unicode - but it uses combining characters.
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Vivian Lee - 2016-01-11
To create zalgo text like on that website takes a little more than just a converstion table like for upside down text... it looks like that site adds a random number of combining characters onto each character of text.
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Vivian Lee - 2016-01-11