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🔎 RegEx Tester & Highlighter

Write regular expressions, configure execution flags, and preview highlighted matches inside test strings in real-time.

Regular Expression

Pattern

//gi

gim

Test String

Visual Highlights

For questions, contact sales@niyajtech.com or support@niyajtech.org. Personal email is info.dev@example.co.uk.

💡 RegEx Cheat Sheet

Character Classes

\d - Match any single digit (0-9).
\w - Match alphanumeric word char.
\s - Match whitespace space/tabs.
. - Match any character except newlines.

Quantifiers

* - Match 0 or more times.
+ - Match 1 or more times.
? - Match 0 or 1 time (optional).
{n} - Match exactly n times.

Anchors & Groups

^ - Start of line boundary.
$ - End of line boundary.
\b - Word boundary search tag.
(x) - Capturing group container.