A regular expression, also referred to as regex or regexp, provides a concise and flexible means for matching strings of text, such as particular characters, words, or patterns of characters. It’s often a headache for beginners to understand and use all the syntax of regexp. Fortunately, you can always get help from online resoures. In this post, you will find out 10 online regular expression testers, which you can test your patterns online before putting into use in your codes.
RegExr is a fash based tool for learning, writing, and testing Regular Expressions. It also has desktop version for Mac, Windows, or Linux. And you can save your expressions in My Saved expressions and search Community expressions and add your own.
Regexlib’s RETester is a .net engine regular expression tester. You can load external data source and make use of the searchable database of regular expressions provided in this site.
* Real-time regex syntax highlighting with backwards and forwards context awareness.
* Lightning-fast match highlighting with alternating styles.
* Inverted matches (match any text not matched by the regex).
Spaweditor’s Regular Expression Test Tool uses PHP regular expression functions as a base for its operations. Nevertheless it can be useful for programmers of other languages as well.
PHP Regular Expression Tester is another online tool by pagecolumn to test regular expression patterns in PHP language. You can select different PHP fuctions to test your regexp.
Regular Expression Test Page is an online tool to test regular expressions with the java.util.regex package. You can input upto 10 testing strings simultaneously.