Regex Cheat Sheet
Quick reference for regex syntax and patterns.
. any char · \d digit · \w word · \s whitespace
^ start · $ end · * 0+ · + 1+ · ? 0/1
{n} exact · {n,} n+ · {n,m} range
[abc] set · [^abc] negated · (...) group · | or
Flags: i ignore case · g global · m multiline · s dotall
About Regex Cheat Sheet
Regex Cheat Sheet is a free online Regex Tools utility on CodeForge Tools. Quick reference for regex syntax and patterns. Processing is designed to stay in your browser so everyday payloads remain private. Open the page, paste your input, and get an instant result — no install and no account.
How to use this tool
- Open the Regex Cheat Sheet page from the Regex Tools category.
- Paste or type your input into the workspace.
- Click Run (or use the shortcut shown in the UI) to process the data.
- Copy the output, download it, or share it using the available actions.
What you get
- Test patterns against sample text
- See matches as you iterate
- Great for validation rules
Common use cases
- Prototype validation rules before coding them
- Extract fields from log lines
- Iterate patterns with live match feedback
Frequently asked questions
Is Regex Cheat Sheet free to use?
Yes. Regex Cheat Sheet on CodeForge Tools is free — no signup, trial, or subscription.
Does Regex Cheat Sheet upload my data?
This tool is designed to run on-device in your browser for normal use, so your input stays local.
When should I use Regex Cheat Sheet?
Use it during development, debugging, or quick conversions in the Regex Tools category instead of installing another desktop utility.