📝 Enter Regex
🛤️ Railroad Diagram
Enter a regex to generate visualization
❓ FAQ
What is regex visualization?
Converts regex into railroad diagrams, showing structure and matching flow. Each character, group, and quantifier becomes a visual node, making complex patterns easier to understand.
Which regex syntax is supported?
JavaScript/ECMAScript syntax, including character classes, quantifiers, groups, captures, lookahead/lookbehind, named groups, and Unicode escapes.
Can I export the diagram?
Yes! The diagram is SVG. Right-click to save as image or copy SVG code for documentation.
📖 Frequently Asked Questions
What is regex visualization?
Regex visualization converts regular expressions into graphical railroad diagrams, showing the structure and matching flow visually. Each character, group, and quantifier becomes a node and path, making complex regex patterns easier to understand.
Which regex engine syntax is supported?
JavaScript/ECMAScript regex syntax is supported, including character classes, quantifiers, groups, captures, lookahead/lookbehind, named groups, and Unicode property escapes. Some Python/PCRE-specific syntax may not be fully compatible.
Can I export the visualization?
Yes! The diagram is rendered as SVG. You can right-click to save as an image or copy the SVG code for documentation, blog posts, or presentations.
How is this different from regex101?
regex101 focuses on match testing and text explanation. This tool focuses on converting regex into railroad diagrams, letting you see the control flow and matching paths at a glance — ideal for teaching, documentation, and code review.