Regex Tester

Experiment with regular expressions in real time, visualise matches, and keep syntax help close at hand.

Ignore case Multiline (^/$ each line) Dot matches newline

Drop sample text or to populate the test area.

Matches update automatically as you type.

Regex quick reference

. matches any character (enable Dot matches newline to include line breaks).
^ and $ anchor to the start or end (use Multiline to apply per line).
Use parentheses for capture groups and ?: for non-capturing groups.
\d, \w, and \s offer shorthand for digits, word characters, and whitespace.

What is Regex Tester?

Regex Tester is a free developer assistant from WizardOfAZ. Use it to work with regular expressions using flexible options as part of your debugging and prototyping, without installing extra software.

Because everything happens locally in your browser, your code and credentials stay under your control while you work with regular expressions using flexible options.

Popular ways to use Regex Tester

Streamline debugging and prototyping by using Regex Tester to work with regular expressions using flexible options.
Share deliverables faster—processed developer payloads are ready for download in seconds.
Combine Regex Tester with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to work with regular expressions using flexible options, and download the processed result instantly.
Bookmark the Regex Tester in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to work with regular expressions using flexible options.

Frequently asked questions

Is the Regex Tester secure?

Yes. The Regex Tester runs entirely in your browser, which means your code and credentials never leave your device.

What can I do with the Regex Tester?

You can debugging and prototyping by processing developer payloads without uploading them to an external service.

Can I use Regex Tester on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement Regex Tester:

Base64 Tool — Use it to work with developer payloads using flexible options.
Batch Minifier — Use it to work with developer payloads using flexible options.
CSS Minifier — Use it to work with CSS snippets using flexible options.