Regex Pattern Cheatsheet
Regex Pattern Cheatsheet is a free online tool to speed up your development and debugging workflow
Regex Pattern Cheatsheet
Search a reference of common regular expression tokens.
| . | Any character (except newline) |
| \d | Digit [0-9] |
| \D | Non-digit |
| \w | Word character [a-zA-Z0-9_] |
| \W | Non-word character |
| \s | Whitespace |
| \S | Non-whitespace |
| ^ | Start of string (or line with m flag) |
| $ | End of string (or line with m flag) |
| \b | Word boundary |
| \B | Non-word boundary |
| * | Zero or more |
| + | One or more |
| ? | Zero or one (optional) |
| {n} | Exactly n times |
| {n,} | n or more times |
| {n,m} | Between n and m times |
| [abc] | Any of a, b, or c |
| [^abc] | Not a, b, or c |
| [a-z] | Character range a to z |
| (abc) | Capture group |
| (?:abc) | Non-capturing group |
| a|b | Alternation (a or b) |
| \1 | Backreference to group 1 |
| (?=abc) | Positive lookahead |
| (?!abc) | Negative lookahead |
Regex Pattern Cheatsheet — free, fast, and works in your browser. No setup required, just open and start using it.
Key Features
Free online tool with instant results
No registration or signup required
Professional-grade accuracy
Works on all devices and browsers
Privacy-first: all processing happens in your browser
Unlimited usage with no restrictions
How to Use Regex Pattern Cheatsheet
Enter Input
Enter your values or data into the input fields
Calculate
Click the button to process your input
View Result
See your results instantly
Copy
Copy the result to clipboard if needed
Use Cases
Professional use
Quick calculations
Educational purposes
Everyday tasks
Frequently Asked Questions
Is this tool free?
Yes, completely free with no registration.
Does it work on mobile?
Yes, it works on all devices and browsers.
Is my data private?
Yes, all processing happens locally in your browser.
Tool Information
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