Is there a free RegExr alternative for a quick test?

Yes. This regex tester runs in your browser and shows matches highlighted in your text as you type. It is free, needs no account, and is built for the common case of checking one pattern quickly.

Is this better than RegExr?

Not at regex itself. RegExr is excellent and goes deeper, with a live explanation of each token, a built-in reference, and a community pattern library we do not match. We are lighter and no-frills, and we sit alongside a whole catalogue of other developer tools.

Does it explain what my pattern does?

Not inline, the way RegExr does. Instead there is a separate regex cheatsheet that lists what each token means, which you can keep open in another tab while you test.

Do I need an account?

No. There is no sign-up and no saving step. You paste a pattern and some text and see the matches straight away.

Which flavour of regex does it use?

The same one your browser runs, so it matches the behaviour you get in front-end code. Patterns that rely on features from other engines may behave differently.

A RegExr alternative for a quick, no-frills pattern test

Test a regular expression against your text in your browser, with a cheatsheet a click away.

Pattern

Try

Test text

Matches update live as you type. Nothing leaves your browser.

Matches

Enter a pattern to start matching.

Quick reference

\d \w \sDigit, word character, whitespace. Capitals negate.

.Any character except a newline (any at all with the s flag).

* + ?Zero or more, one or more, optional.

^ $Start and end of the text, or of each line with the m flag.

[abc]Any one character from the set. [^abc] means none of them.

(...)Capture group. (?<name>...) gives it a name.

(?=...)Lookahead: match only when followed by this, without consuming it.

\bWord boundary, the edge between a word character and anything else.

How it compares to RegExr

Feature	RegExr	Super Boring Tools
Test a pattern live	Yes	Yes
Match highlighting	Yes	Yes
Runs in your browser	Yes	Yes
Community pattern library	Yes	No
Live explanation of each token	Yes	No
Built-in reference	Yes	A separate cheatsheet
Account required	For saving	Never
Price	Free	Free
Everything else you might need	Regex tools	A whole catalogue of tools

When to use RegExr instead

You are learning regex

RegExr explains each token live and has a built-in reference, so you can see exactly why a pattern matches as you type. For learning the language itself, it is the better teacher.

You want community patterns

RegExr has a large library of shared, searchable patterns you can browse and borrow. We do not offer that, so if you would rather start from someone else’s pattern than write your own, they win.

Frequently asked questions

Is there a free RegExr alternative for a quick test?: Yes. This regex tester runs in your browser and shows matches highlighted in your text as you type. It is free, needs no account, and is built for the common case of checking one pattern quickly.
Is this better than RegExr?: Not at regex itself. RegExr is excellent and goes deeper, with a live explanation of each token, a built-in reference, and a community pattern library we do not match. We are lighter and no-frills, and we sit alongside a whole catalogue of other developer tools.
Does it explain what my pattern does?: Not inline, the way RegExr does. Instead there is a separate regex cheatsheet that lists what each token means, which you can keep open in another tab while you test.
Do I need an account?: No. There is no sign-up and no saving step. You paste a pattern and some text and see the matches straight away.
Which flavour of regex does it use?: The same one your browser runs, so it matches the behaviour you get in front-end code. Patterns that rely on features from other engines may behave differently.