- Results update in real-time as you type.
- Roll over a match or expression for details.
- Save & share expressions with others.
- Explore the Library for help & examples.
- Undo & Redo with {{getCtrlKey()}}-Z / Y.
- Search for & rate Community patterns.
Regular Expression
Test String
Substitution
Chat Pages REGEX patter
matches for the following pages: https://business.comcast.com/Checkout/AccountInfo https://business.comcast.com/Checkout/Installation https://business.comcast.com/Checkout/Review https://business.comcast.com/Customization/Internet https://business.comcast.com/Customization/Video https://business.comcast.com/Customization/Voice https://business.comcast.com/landingpage/94tpoffer https://business.comcast.com/landingpage/mobility https://business.comcast.com/landingpage/3490-tp https://business.comcast.com/89dpoffer https://business.comcast.com/94tpoffer https://business.comcast.com/tools/internet-speed-test https://business.comcast.com/t/internet-c https://business.comcast.com/landingpage/resi1 https://business.comcast.com/landingpage/deluxe150 https://business.comcast.com/landingpage/wifipro https://business.comcast.com/triple-play-bundle https://business.comcast.com/LandingPage/29VoiceOffer https://business.comcast.com/enterprise/voice/sip-trunks/included-features https://business.comcast.com/internet https://business.comcast.com/internet/business-internet https://business.comcast.com/internet/business-internet/included-features http://business.comcast.com/offers-bundles https://business.comcast.com/phone https://business.comcast.com/phone/business https://business.comcast.com/phone/business/included-features https://business.comcast.com/phone/pri-trunks https://business.comcast.com/phone/pri-trunks/included-features https://business.comcast.com/phone/sip-trunks https://business.comcast.com/phone/voiceedge https://business.comcast.com/phone/voiceedge/included-features https://business.comcast.com/small-medium-business https://business.comcast.com/tv https://business.comcast.com/tv/channel-lineup https://business.comcast.com/tv/gyms https://business.comcast.com/tv/hotels https://business.comcast.com/tv/offices https://business.comcast.com/tv/restaurants https://business.comcast.com/tv/offices/channel-lineup https://business.comcast.com/contact https://business.comcast.com/about-us/customer-support https://business.comcast.com/internet https://business.comcast.com/internet/business-internet https://business.comcast.com/phone/business https://business.comcast.com/tv/offices https://business.comcast.com/Comments
Top Regular Expressions
Url checker with or without http:// or https://
Match string not containing string
Check if a string only contains numbers
Only letters and numbers
Match elements of a url
Url Validation Regex | Regular Expression - Taha
Match an email address
Validate an ip address
nginx test
match whole word
Match or Validate phone number
Match html tag
Find Substring within a string that begins and ends with paranthesis
Blocking site with unblocked games
Match dates (M/D/YY, M/D/YYY, MM/DD/YY, MM/DD/YYYY)
Empty String
Match if doesn't start with string
RegEx for Json
Checks the length of number and not starts with 0
all except word
Match string not containing string
Check if a string only contains numbers
Only letters and numbers
Match elements of a url
Url Validation Regex | Regular Expression - Taha
Match an email address
Validate an ip address
nginx test
match whole word
Match or Validate phone number
Match html tag
Find Substring within a string that begins and ends with paranthesis
Blocking site with unblocked games
Match dates (M/D/YY, M/D/YYY, MM/DD/YY, MM/DD/YYYY)
Empty String
Match if doesn't start with string
RegEx for Json
Checks the length of number and not starts with 0
all except word
Cheat Sheet
| Character classes | |
|---|---|
| . | any character except newline |
| \w \d \s | word, digit, whitespace |
| \W \D \S | not word, digit, whitespace |
| [abc] | any of a, b, or c |
| [^abc] | not a, b, or c |
| [a-g] | character between a & g |
| Anchors | |
| ^abc$ | start / end of the string |
| \b | word boundary |
| Escaped characters | |
| \. \* \\ | escaped special characters |
| \t \n \r | tab, linefeed, carriage return |
| \u00A9 | unicode escaped © |
| Groups & Lookaround | |
| (abc) | capture group |
| \1 | backreference to group #1 |
| (?:abc) | non-capturing group |
| (?=abc) | positive lookahead |
| (?!abc) | negative lookahead |
| Quantifiers & Alternation | |
| a* a+ a? | 0 or more, 1 or more, 0 or 1 |
| a{5} a{2,} | exactly five, two or more |
| a{1,3} | between one & three |
| a+? a{2,}? | match as few as possible |
| ab|cd | match ab or cd |
