Regex Tester
Test regular expressions with live matches.
How to use
- 在选项中输入正则，在文本框粘贴测试内容，匹配结果实时高亮。
- 可开关 g / i / m / s 标志。
- 下方列出每次匹配的全文与捕获组（最多展示 50 条明细）。
- 语法与 JavaScript RegExp 一致。
FAQ
Does Regex Tester upload my data?
No. Processing stays in your browser and is not uploaded.
Do I need an account?
No. Open and use — no signup.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page.