Text Tools

Regex Tester & Replacer

Test regular expressions, capture groups, and replacements.

正则表达式替换内容

正则标志 g 全局 i 忽略大小写 m 多行 s 点匹配换行 u Unicode

测试文本

正则会在独立任务中运行，复杂表达式超时后将自动停止。

About Regex Tester & Replacer

Enter a pattern, flags, and test text to inspect matches and capture groups or preview replacements. Long-running expressions time out automatically.

Files and content are processed entirely in your browser and are never uploaded. Results are released from browser memory when you close the page.