Complete regex tool: test patterns with visual highlighting, generate regex from categories, explain token by token, validate formats, extract data, replace with presets, and generate code for 7 languages — all 100% local in the browser using the JavaScript engine.
该工具的内容尚未完全翻译成中文,目前展示的是英文版本。我们正在逐步翻译所有工具,如果你希望我们优先翻译某个工具或有其他建议,欢迎点击右下角的 建议工具 按钮告诉我们。
🔒 100% local no navegador. Usa motor de regex do JavaScript.
| # | Match | Posição | Lin:Col | Grupos | |
|---|---|---|---|---|---|
| 1 | (vazio) | 0–0 | 1:1 | — |
The tester shows matches with alternating colors, position (line and column), captured groups and execution time. You can export results as JSON, CSV or TXT.
The replacement field lets you test substitutions with a before/after preview and occurrence count.
Choose what you want to find (email, phone, date, URL, UUID, etc.) and configure specific options. The regex is generated automatically with explanation and test text.
The visual builder lets you compose regex by clicking blocks: characters, anchors, quantifiers, groups, sets, lookaround and escape.
The explainer analyzes the regex token by token in plain language, making it easier to learn and debug complex patterns.
Over 30 ready patterns organized by category. Validation mode checks format compliance. Extraction mode finds all items in large texts. Replacement presets include removing spaces, HTML, emojis, masking data and normalization.
Generate ready-to-use code in JavaScript, TypeScript, Python, PHP, Java, C# and Go for test, extract and replace modes.
Diagnostics shows a checklist and suggestions to improve your regex.
All processing is local in the browser. No text or regex is sent to any server.
This tool uses the JavaScript (ECMAScript) regex engine. Some features like lookbehind may not work in older browsers.
Regex (regular expression) is a search pattern used to find, validate and replace text. Widely used in programming, text editors and search tools.
It uses the native JavaScript (ECMAScript) regex engine of your browser.
Yes. In the Generate tab, choose a category and configure options. The regex is generated with explanation and test text.
Most basic patterns work across engines. The Code tab generates adapted snippets, but always review for engine-specific differences.
Use ^ (start) and $ (end) anchors around your pattern.
In the Extract tab, paste text and choose the type. Results can be exported as JSON, CSV or TXT.
No. All processing is 100% local in the browser.
相关链接,帮助你继续完成类似任务,无需重新开始。
针对常见用途的快捷入口,使用相同的完整流程。
本页面的工具直接在你的浏览器中运行,不会将输入内容发送到后端服务器。这样可以提升隐私保护并降低延迟。
