Which regex engine is used?

The tool uses the JavaScript RegExp engine, which follows the ECMAScript specification.

Does it show capture groups?

Yes. Named and numbered capture groups are displayed with their matched values.

Is my data sent to a server?

No. All matching runs securely in your browser without uploading.

开发工具

正则表达式测试器

实时测试正则表达式，并高亮匹配结果。

//g

标志：g=global · i=case-insensitive · m=multiline · s=dotAll

快速：

测试字符串

匹配

高亮结果会显示在这里…

使用 JavaScript 的 RegExp 引擎，匹配结果会实时高亮。

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