Regex Tester

Live pattern matching with highlighted results. Includes common patterns for network automation — Netmiko output parsing, IP extraction, log analysis.

/ /
Test string
Network automation presets

// regex quick reference

\d any digit
\w word char
\s whitespace
. any char
^ start of line
$ end of line
* 0 or more
+ 1 or more
? 0 or 1
{n,m} n to m times
(...) capture group
(?:...) non-capturing
[abc] character class
[^abc] negated class
a|b alternation
\b word boundary