What is RegEx Playground Pro?

It's a live regex testing tool with match highlighting, a curated pattern library, natural language to regex generation, and a comprehensive regex cheatsheet. Free to use.

Can I generate regex patterns from plain English?

Yes. Type what you want to match in plain English (e.g., 'Match all email addresses') and the AI generates a working regex pattern instantly.

Is RegEx Playground Pro free?

Yes, the full playground, pattern library, and cheatsheet are free. Pro features (saved patterns, team sharing, AI generator, bulk testing, API access) are $9/month.

Can I purchase Pro access programmatically via API?

Yes. The Pro tier ($9/mo) can be purchased via the Stripe checkout API at /.netlify/functions/create-checkout with product_id and customer_email parameters.

Free tool by OpenFluff

Describe what you want to match.
Get the pattern instantly.

Name: RegEx Playground Pro
Availability: InStock
Rating: 4.9 (203 reviews)
Author: OpenFluff

A live regex tester with match highlighting, a curated pattern library, and natural language generation. Built for developers who hate writing regex.

Open Playground →

✨ Describe in plain English:

Pattern

g i m s

/ / gm

0 matches

Test String

Matches

Match Details

Enter a pattern and test string to see matches

Regex Explanation

Enter a pattern to see a plain-English explanation

Pattern Library

Common Regex Patterns

Click any pattern to load it into the playground.

Reference

Regex Cheatsheet

The essentials, always one scroll away.

Character Classes

.Any character except newline

\dDigit [0-9]

\wWord character [a-zA-Z0-9_]

\sWhitespace

[abc]a, b, or c

[^abc]Not a, b, or c

[a-z]Range: a to z

Quantifiers

*0 or more

+1 or more

?0 or 1

{n}Exactly n

{n,m}Between n and m

*?Lazy (non-greedy)

Anchors & Groups

^Start of string/line

$End of string/line

\bWord boundary

(abc)Capture group

(?:abc)Non-capture group

a|ba or b

(?=abc)Positive lookahead

Flags

gGlobal — find all matches

iCase-insensitive

mMultiline (^ $ per line)

sDotall (. matches \n)

uUnicode support

PRO

Unlock RegEx Pro

Save unlimited patterns, share with your team, access the AI generator, bulk test files, and get API access. $9/mo · cancel anytime.

Upgrade to Pro — $9/mo → Browse All Tools →

Describe what you want to match.Get the pattern instantly.