High-Fidelity Regular Expression Workbench & IDE
Regex Architect Pro is a high-fidelity Regular Expression workbench designed for developers, data scientists, and security engineers. It moves beyond basic 'match-and-find' tools by providing a comprehensive Regex IDE that allows you to architect, unit test, and document complex patterns in a secure environment.
Whether you need a quick regex tester or a robust regular expression tester for production-grade logic, our tool features an integrated Pattern Library and a unique Shield Mode for PII masking. It is an essential utility for developers handling sensitive data logs or building complex validation logic for secure environments.
🚀 Key Features
🛡️1. Shield Mode (PII Masking)
Safely debug patterns using production data. Shield Mode allows you to visually mask matches:
- •Data Scrubbing: Instantly replace matched text like emails or tokens with masks.
- •Privacy Preservation: Test patterns against real-world data without exposing sensitive content.
🧪2. Integrated Unit Testing
Ensure your Regex is production-ready. Define a suite of Unit Tests to verify that your pattern matches valid inputs and correctly fails invalid ones.
📚3. Pro Pattern Library
Access a curated library of enterprise-ready regular expression patterns, including JWT Tokens, IPv4 Addresses, and E.164 Phone Numbers.
📖4. Real-Time Logic Explainer
The Logic Explainer breaks down complex syntax—like lookaheads, capture groups, and quantifiers—into human-readable documentation.
🛠 How to Use the Tool
Step 1: Draft Your Pattern
Enter your Regex in the top bar. Use the Flag Toggles (g, i, m, s) to set the global, case-insensitive, or multi-line execution context.
Step 2: Provide Test Corpus
Paste your raw text into the Text Buffer. This regular expression tester highlights matches in real-time as you modify your pattern.
Step 3: Run Unit Tests
Switch to Unit Test mode to add edge cases. Set whether a string should or should not match to ensure pattern accuracy.
Step 4: Inspect and Export
Use the Match Inspector to view capture groups, or click Export Code to get ready-to-use snippets for JavaScript and Python.
📈 Performance & Security Benefits
| Feature | Benefit |
|---|---|
| Regex MatchAll Support | Full support for global flags and overlapping capture groups using modern JS engines. |
| Capture Group Analysis | Deep inspection of indexed capture groups for complex string data extraction. |
| Multilingual Export | Handles escape sequences automatically for different languages like JS and Python. |
| Recursive Logic Mapping | Human-readable breakdown of quantifiers and character classes for easier debugging. |
Common Use Cases
Why Use Our Tool?
Privacy First
100% Client-side. Your patterns and test data stay in your browser. We never log or transmit your data.
Test Driven
Built-in unit testing suite prevents 'Regex Regressions' as your requirements grow more complex.
PII Secure
The only regex tester that allows you to mask sensitive matches while debugging patterns.