- Counting with Regular Expressions - Abrazolica
- Stop Validating Email Addresses With Your Complex Regex - davidcel.is
- JavaScript Regular Expression Enlightenment - Tech.Pro
- Stop Avoiding Regular Expressions Damn It - bradt.ca
- www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
- Brain Dump (english): Arithmetic with Regexps
- Why the hell am I building a product with a tiny market? - Debuggex
- Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions - YouTube
- An example driven guide to regular expressions | JoeJag :: Tech
- Python, Catastrophic Regular Expressions and the GIL
- Nested Regular Expressions explained | Linguistic forms
- Details of Regular Expression Behavior
- Bastards Book of Regular Expressions by Dan Nguyen [PDF/iPad/Kindle]
- HTML5 Pattern
- regexs for HTML5 input validation
- REBEL - Kendall Frey's Website
- Regular Expression Based Esoteric Language - a declarative programming language that works by iteratively replacing substrings
- petere/pgpcre · GitHub
- java - Cancelling a long running regex match? - Stack Overflow
- Comparison of regular expression engines - Wikipedia, the free encyclopedia
- Parsing Techniques - A Practical Guide | Hacker News
- print "Me" -- portable perspectives
- k-takata/Onigmo · GitHub
- Ruby 2.0
- Debuggex: A visual regular expression debugger
- Can You Do the Regular Expression Crossword? - Slashdot
- Security Briefs - Regular Expression Denial of Service Attacks and Defenses
- Collaborative Manuscript Transcription: Bending Regular Expressions to Express Uncertainty
- Regex Challenge - Week Twenty
- chess move notation using the algebraic notation
- A regular expression crossword puzzle [pdf]
- Regex Challenge - Week Nineteen
- all the valid HTML tag names in as few characters as possible
- RegexOne - Learn regular expressions with interactive examples
- Regular expressions - Rosetta Code
- The 30 Minute Regex Tutorial - CodeProject
- I don't like Regex... - CodeProject
- Regex Challenge - Week Eighteen
- check if a string is a valid IRC message sent to a user or channel
- harthur/replace · GitHub
- Command line search and replace utility (with js regex)
- AT&T Research regex(3) regression tests
- logentries/re2-java · GitHub
- Vim Regular Expressions 101
- Printable Regular Expressions Cheatsheet
- Validate an E-Mail Address with PHP, the Right Way | Linux Journal
- Regex Challenge - Week Seventeen
- match valid regular expressions - just literal characters, character classes, and a few other minor features
- Microsoft Research Mobile - The GRETA Regular Expression Template Archive
- Boost C++ - References and Further Information - 1.52.0
- tweetregs/regexes.md at master · pkedrosky/tweetregs · GitHub
- Advanced Filters: Excel's Amazing Alternative To Regex
- regex-dna benchmark | Computer Language Benchmarks Game
- Regexper
- Home · gabriel-weaver/xutools Wiki · GitHub
- ArsalanBashir/RegexLove · GitHub
- Incremental Regular Expressions
- Google Spreadsheet Regular Expression Functions Are Insanely Useful
- 10 Java Regular Expression Examples You Should Know
- Regex Challenge - Week Sixteen
- match the elements with chemical numbers of above 50
- Regex Challenge - Week Fifteen
- match musical chord names such as Cmin, Bmaj
- Regex Challenge - Week Fourteen
- match all the valid chemical element short names
- BlackOdd: Learning Regular Expressions / Regex [Part 1] - Character Classes, Elements and Quantifiers
- Here's what ICT should really teach kids: how to do regular expressions | Technology | guardian.co.uk
- How to Find or Validate an Email Address
- Regex Challenge - Week Thirteen
- match strings which have a word repeated directly below the same word on the previous line
- Regex Challenge - Week Eleven
- one space between words, and two spaces after full stops
- Regex Challenge - Week Eleven
- match strings where the letters are in alphabetical order
- Regex Challenge - Week Ten
- turn a sentence into a number of "tokens" that would be suitable for something like a search engine to use as keywords
- Regex Challenge - Week Nine
- parse MarkDown links
- Regex Challenge - Week Eight
- match (immediately) repeating MarkDown list items
- eriksank/alt-regex-engine · GitHub
- 4.10.7.1 States of the type attribute — HTML5
- My favorite regex of all time - good coders code, great reuse
- It matches all ASCII characters from the space to the tilde
- Regular Expressions Will Stab You in the Back - Cue:tech
- Rubular - a Ruby regular expression editor | Hacker News
- A Common Gotcha When Using Ruby Regexps For Input Validation - Jerod Santo
- ReDoS - Wikipedia, the free encyclopedia
Also see links to other regex testing websites/programs on the Similiar Tools page.

