regex101

Overview

Regex101 is a regular expression test and description tool that is suitable for entering expressions and sample text and checking for matching results.

Key features

• Expression Test: Verify whether the mode matches the target text
• Rule Notes: Understanding the components of the expression

Suitable uses

For text matching, data extraction and rule learning, the test is conducted using the regular syntax of the actual environment.

Getting started

First, the target matches a sample that should not be matched, and the corresponding language or engine is selected. Gradually modify the expression to check borders, line breaks and special characters and then verify them in the actual program.

Things to check

The syntax and performance of different engines may differ. Complex expressions should check for unexpected matching and running time-consuming.

Pricing and availability

Account requirements, pricing, export limits and regional availability can change. Check the current official terms before using the service. This directory does not promise a particular free allowance or price.

References

Official website and product information