Common Prefix Regex Optimizer
Generate optimized regular expression patterns from strings by consolidating common prefixes.
Input Strings
Please benchmark for your specific use case. Sets or even arrays can often be faster.
- Flexible Input: Parse strings with newline, space, comma, or custom delimiters
- Prefix Optimization: Generate compact regex patterns by consolidating common prefixes
- Multiple Pattern Styles: Choose between optimized (prefix-consolidated) or simple alternation
- Regex Options: Configure capture groups, flags (global, case-insensitive, multiline)
- URL Route Matching: Generate patterns for similar API routes (
/api/users, /api/posts, /api/comments)
- Keyword Detection: Build patterns from programming language names or other keyword lists
- Command Parsing: Match CLI command variations (
--help, --version, --verbose)
- Domain Filtering: Create patterns for related domains (
example.com, example.org, example.net)
- File Extensions: Match multiple file types (
.js, .jsx, .ts, .tsx)
Enter or paste your strings, separated by your chosen delimiter:
The tool identifies and consolidates common prefixes:
app
├── le (*)
├── lication (*)
└── ly (*)
Two pattern generation modes:
Optimized (Prefix-consolidated):
/app(?:l(?:e|ication)|ly)/g
Simple Alternation:
/apple|application|apply/g