gskinner/regexr
Regexr
Regexr is a web-based regular expression IDE designed for building, testing, and debugging patterns. It functions as a testing tool to validate expressions against sample text and a learning tool that provides an interactive guide and a built-in cheat sheet for studying syntax.
The platform includes a community regex library, which is a searchable repository of user-contributed patterns. This enables the discovery, sharing, and reuse of proven matching logic through a public directory and collaborative sharing links.
The tool supports real-time pattern construction with syntax highlighting and human-readable explanations of tokens. It provides capabilities for cross-flavor pattern testing to verify behavior across different engines and allows the creation of test suites with positive and negative samples to ensure correctness.
Features
- Interactive Regex IDEs - Provides a web-based IDE for building and testing regular expressions in real-time with detailed match explanations.
- Regular Expression IDEs - Provides a full web-based IDE for building, testing, and debugging complex regular expressions in real-time.
- Regular Expression Filtering - Provides a comprehensive web-based environment for real-time regular expression development and debugging.
- Real-Time Code Evaluation - Evaluates regular expression patterns against input text instantly as the user types to provide immediate feedback.
- Pattern Explanations - Provides human-readable explanations of regex tokens to help users understand and debug their patterns.
- Interactive Learning Tools - Features interactive guides and visual aids to help users learn regular expression rules through practice.
- Regex Syntax References - Provides a comprehensive guide and cheatsheet of regular expression character classes, anchors, and quantifiers.
- Regular Expression Syntax Guides - Includes interactive guides and a built-in cheat sheet for learning regex syntax and character classes.
- Regex Testing Tools - Acts as a validator for checking regex patterns against sample text using various language flavors.
- Edge Case Test Suites - Enables the creation of positive and negative test suites to validate regex behavior across edge cases.
- Syntax Highlighters - Implements a token-based syntax highlighter that applies distinct colors to regex quantifiers, anchors, and groups.
- Regex Pattern Catalogs - Maintains a searchable catalog of user-contributed regular expressions for community reuse.
- Community Pattern Repositories - Ships a searchable directory of user-contributed regular expressions for discovering proven patterns.
- Cross-Flavor Regex Testing - Allows users to analyze matches and capture groups across different regular expression language flavors.
- Pattern Sharing - Allows users to save expressions to their accounts and generate public links to share patterns.
- Pattern Search - Provides a search utility to find and reuse existing regex patterns within the community library.
- Regex Engine Verification - Provides a utility to validate patterns against text using specific regex engines to ensure expected matching behavior.
- Regular Expression Libraries - Offers a way to save and organize a collection of reusable regular expressions to avoid rewriting common patterns.
- Shared Pattern Repositories - Provides a shared repository of proven regular expressions for cross-project reuse via public links.
- Engine Switching - Allows users to switch between different regex flavors to validate pattern behavior across various programming languages.
- URL State Serialization - Serializes the current regex pattern and test text into the URL for easy sharing of configurations.
- Regex Pattern Test Suites - Supports creating collections of positive and negative test cases to ensure expression correctness across multiple inputs.
- Development Environments - Tests and learns regular expressions in the browser.
Star history
How this analysis was created: This summary and feature list were written by an AI model that read the project's README and public documentation pages. Each feature links to the documentation it came from; stars, license and language come straight from the GitHub API. The model does not read the source code, and the analysis is refreshed when the project is re-analysed. Learn more on our About page.
