RPA is a pattern matching engine. It provides a number of utilities for
searching, matching and parsing. The matching rules are described in a
BNF-like language.
JSON PARSER ONLINE is a tool which lets you parse json string into a preety and colorful json tree view. JSON Parser Online converts JSON Strings to a friendly readable format.
Jericho HTML Parser is a java library allowing analysis and manipulation of parts of an HTML document, including server-side tags, while reproducing verbatim any unrecognised or invalid HTML.