Best use
Use it for a focused Common Regex Patterns task when a quick browser workbench is appropriate.
Searchable reference table loads with JavaScript. Core examples remain in the page metadata and static related links.
Common Regex Pattern Reference
Search common regular expressions for email, URL, IP address, numbers, dates, and Chinese text.
How to use this tool
Common Regex Patterns: Paste input, load the sample if needed, choose an action, review the output, and copy the result.
Usage boundaries and result checks
Common Regex Patterns is for this task: Search common regular expressions for email, URL, IP address, numbers, dates, and Chinese text. It runs in the browser; start with a short, non-sensitive sample and confirm the behavior before processing more data.
Input
source code or markup snippets
Output
formatted text or a compact representation
Before reuse
For Common Regex Patterns: Run the result through the target parser, linter, compiler, or test suite; readable formatting does not prove semantic correctness. See the test method.