Tool Guide

What is Regex Library?

Browse common regex patterns by category with one-click copy and online testing.

How to use?

Browse Categories: Select scenarios on the sidebar (e.g., accounts, emails, phone numbers).
Select Pattern: Browse ready-to-use industry standard regular expressions.
Test & Copy: Verify against your text in the built-in testbed, then copy to your project.

Use Cases

Reuse Standard Rules

Skip memorizing complex syntax when building form validators by copying battle-tested standard regex rules.

Limits and data handling

Results reflect the current input and test conditions and do not prove a service is always available. For Regex Library, pay special attention to: Browse Categories: Select scenarios on the sidebar (e.g., accounts, emails, phone numbers).
Complex input, special syntax, or network rules can change the result. For Regex Library, pay special attention to: Browse Categories: Select scenarios on the sidebar (e.g., accounts, emails, phone numbers).
Remove keys, tokens, and customer data before submitting. For Regex Library, pay special attention to: Browse Categories: Select scenarios on the sidebar (e.g., accounts, emails, phone numbers).

Regex Library uses only the information needed for the current action. Do not submit unrelated sensitive content.

Frequently asked questions

How do I use Regex Library for Reuse Standard Rules?

Browse Categories: Select scenarios on the sidebar (e.g., accounts, emails, phone numbers). Test & Copy: Verify against your text in the built-in testbed, then copy to your project.

What is Regex Library useful for?

Skip memorizing complex syntax when building form validators by copying battle-tested standard regex rules. Skip memorizing complex syntax when building form validators by copying battle-tested standard regex rules.

What should I check before using Regex Library?

Results reflect the current input and test conditions and do not prove a service is always available.