Welcome to RegExr v2.1 by gskinner.com, proudly hosted by Media Temple!
Edit the Expression & Text to see matches. Roll over matches or the expression for details. Undo mistakes with ctrl-z. Save Favorites & Share expressions with friends or the Community. Explore your results with Tools. A full Reference & Help is available in the Library, or watch the video Tutorial.
Sample text for testing:
abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
0123456789 _+-.,!@#$%^&*();\/|<>"'
12345 -98.7 3.141 .6180 9,000 +42
555.123.4567+1-(800)-555-2468
foo@demo.netbar.ba@test.co.uk
www.demo.comhttp://foo.co.uk/
http://regexr.com/foo.html?q=bar
https://mediatemple.net
Character classes
| Set | Explination |
|---|---|
. |
Getany character except newline |
\w \d \s |
word, digit, whitespace |
\W \D \S |
not word, digit, whitespace |
[abc] |
any of a, b, or c |
[^abc] |
not a, b, or c |
[a-g] |
Getcharacter between a & g |
Anchors
| Set | Explination |
|---|---|
^abc$ |
start / end of the string |
\b \B |
word, not-word boundary |
Escaped characters
| Set | Explination |
|---|---|
\. \* \\ |
escaped special characters |
\t \n \r |
tab, linefeed, carriage return |
\u00A9 |
unicode escaped © |
Groups & Lookaround
| Set | Explination |
|---|---|
| ` (abc)` | capture group |
| ` \1` | backreference to group #1 |
| ` (?:abc)` | non-capturing group |
| ` (?=abc)` | positive lookahead |
| ` (?!abc)` | negative lookahead |
Quantifiers & Alternation
| Set | Explination |
|---|---|
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 |
Get integer & decimal numbers
/(?:\d*\.)?\d+/g
Get a phone number.
/\b\d{3}[-.]?\d{3}[-.]?\d{4}\b/g
Get a phone number that is US based.
/\+1.\([0-9]+\).[0-9]+.[0-9]+/g
Get all 6 letter words.
/\b\w{6}\b/g
Get all valid email addresses.
/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b/g
Get all web sites.
/(www|http:\/\/|https:\/\/)[A-Za-z0-9._%+-]+/g