Regex tools online

Convert Binary to a String. Quickly convert a binary string to a string. Convert a String to Octal. Quickly convert a string to an octal string. Convert Octal to a String. Quickly convert an octal string to a string. Convert a String to Decimal. Quickly convert a string to a decimal string. Convert Decimal to a String. Quickly convert a decimal string to a string. Convert a String to Hex. Quickly convert a string to a hexadecimal string. Convert Hex to a String.

Quickly convert a hexadecimal string to a string. Change String Case. Quickly change the case of characters in a string. Convert a String to Uppercase. Quickly convert a string to uppercase. Convert a String to Lowercase. Quickly convert a string to lowercase. Randomize Letter Case in a String. Quickly randomize the case of each letter in a string.

Invert Letter Case in a String. Quickly invert string's case. Quickly extract string data from a JSON data structure. Quickly convert a string to a JSON string. Quickly convert a JSON stringified string to a regular string. Quickly extract all string data from a HTML page. Convert XML to a String. Quickly extract all string data from an XML document. Convert CSV to a String. Quickly convert a CSV file to evenly aligned columns of space-separated strings.

Convert a String to CSV. Quickly convert strings to a proper CSV file. Convert BBCode to a String. Quickly extract all string data from a BBCode markup. Convert a String to Morse Code.

Quickly convert a string to Morse code. Convert Morse Code to a String. Quickly convert Morse code to a string. Create a Palindrome. Quickly create a palindrome from a string. Check a Palindrome. Quickly check if a string is a palindrome. Generate String Unigrams. Quickly generate all monograms of a string.

Generate String Bigrams. Quickly generate all digrams of a string. Coming soon These string tools are on the way. View and Edit Strings. Quickly edit a string in a browser-based editor. Replace Multiple Strings. Replace a set of strings with a new set. Title-case a String. Convert a string to a title with proper titlecase. Capitalize Words in a String. Convert the first letter of every word in a string to uppercase.

Justify a String. Stretch out a string and align it along the left and right margins. Format a Multi-line String. Format and align a multi-line string. Number of Letters in a String. Find how many letters there are in a string. Number of Words in a String.

Find how many words there are in a string. Number of Lines in a String. Find how many lines there are in a multi-line string. Number of Paragraphs in a String.

Find how many paragraphs there are in a multi-line string. Sort Words in a String. Sort all words in a string alphabetically. Sort a Numeric String. Sort a string that contains only numbers. Reverse Words in a String. Reverse the order of all words in a string. Reverse Sentences in a String. Reverse the order of all sentences in a string. String Frequency Analysis.

Find most frequent letters, words and phrases in a string. Create String Mnemonic. Generate a mnemonic for words in a string. Create an Anagram from a String. Rearrange letters in a string and create a new string. Number a Multi-line String. Add line numbers to a multi-line string. Wrap a String. Wrap strings to the given line length. Chunkify a String.

Split a string into chunks of certain length. Divide a String into Syllables. Shuffle Words in a String. Shuffle the order of all words in a string. Extract Emails from a String. Find and extract all email addresses from a string. Extract URLs from a String.

Find and extract all web addresses from a string. Zigzagify a String. Make a string go in zigzags. Extract Numbers from a String. Find and extract all numbers from a string. Generate String Statistics. Analyze string's complexity. Convert a String to Punycode. Encode a string to punycode.

Convert Punycode to a String. Decode a string from punycode. QP-encode a String. Convert a string to quoted-printable encoding. QP-decode a String. Convert quoted-printable encoded data to a string. Decode a string from base Decode a string from Ascii UTF8-encode a String. UTF8-decode a String. Insert quote. Insert code snippet. Insert link. Add bulleted list. Add numbered list. Headers H1. Submit Cancel. Delete Regex Are you sure you want to delete this regex?

This action is non-reversible and will delete all versions of this regex. Yes, delete Close. Flavor Need help selecting flavor? Need help selecting flavor? Java 8. Flavor Help. Function Match. A regular expression regex or regexp for short is a special text string for describing a search pattern. Regular expressions are used to perform pattern-matching and "search and replace" functions on text.

The Online Regex Tester tool who makes it possible to simultaneously test a regular expression on strings and to immediately view the results, including the captured elements. Enter your regular expression , source text Test string and click to the button "Check" and you will get result of RegEx Tester below in the result section. Toggle navigation. Form of Regular Expression. This free RegEX tester lets you test your regular expressions, just enter it below: Regular expression.

Test String. Replace with Optional. This will make sure that every number in the IP address is between 0 and The leading sign is optional and the color code can take either the 6 or 3 hexadecimal digits format. What is Regular Expression? How it Works? Cheat Sheet Character What does it do? If in multiline mode, it also matches before a line break character , hence every end of line. Also known as NON-capturing parenthesis.

Also known as capturing parenthesis. Matches any single character except the newline character.