Opera Labs HTML5 Parser

Opera Labs HTML5 Parser 12.0

Free
It defines a set of parsing rules for all markup, whether valid or invalid.

The HTML5 specification defines a set of parsing rules for all markup, whether valid or invalid. Once all browsers have HTML5 parsers, the same markup will produce the same DOM across all conforming browsers.
There are two main effects of this:
- JavaScripters will sport cheerful grins and bouffant hair.
- Consumers can expect fewer interoperability problems when using their favourite site between browsers.

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