Regular Expression Playground
Parses regex syntax, compiles to Non-deterministic Finite Automata (NFA), and matches interactively.
Website
Examples
Source
1. Pattern & Input
Regular Expression
Test String
ababb
Quick Examples
ababb
Digits
Identifiers
Simple Email
Anchored
Ranges
2. Match Results
Live Matches
No matches found for this regular expression in the test string.
Match Details (
0
matches found)
3. AST Visualization
4. NFA States & Transitions
State
Transitions