HTML code for an apostrophe

Question

If you are looking for straight apostrophe ' (U+00027), it is

' or ' (latest is HTLM 5 only)

If you are looking for the curly apostrophe ’ (U+02019), then yes, it is

’ or ’

As of to know which one to use, there are great answers in the Graphic Design community: What’s the right character for an apostrophe?.

A List Apart has a nice reference on characters and typography in HTML. According to that article, the correct HTML entity for the apostrophe is ’. Example use: ’ .

It's '.

As noted by msanders, this is actually XML and XHTML but not defined in HTML4, so I guess use the ' in that case. I stand corrected.

Depends on which apostrophe you are talking about: there’s ', ‘, ’ and probably numerous other ones, depending on the context and the language you’re intending to write. And with a declared character encoding of e.g. UTF-8 you can also write them directly into your HTML: ', ‘, ’.

A standard-compliant, easy-to-remember set of html quotes, starting with the right single-quote which is normally used as an apostrophe:

• right single-quote — ’ — ’
• left single-quote — ‘ — ‘
• right double-quote — ” — ”
• left double-quote — “ — “

Firstly, it would appear that ' should be avoided - The curse of '

Secondly, if there is ever any chance that you're going to generate markup to be returned via AJAX calls, you should avoid the entity names (As not all of the HTML entities are valid in XML) and use the &#XXXX; syntax instead.

Failure to do so may result in the markup being considered as invalid XML.

The entity that is most likely to be affected by this is  , which should be replaced by  

Here is a great reference for HTML Ascii codes:

http://www.ascii.cl/htmlcodes.htm

The code you are looking for is: '