AI Regex Generator
Convert natural language descriptions into accurate regular expressions with live testing and token breakdowns.
ecsot local AI • Useful AI. Runs in your browser.
Your text and documents stay entirely on your device. Processing is executed by on-device AI engines (such as Chrome Built-in AI Gemini Nano) without sending your data to external AI servers.
Chrome Built-in AI not detected in this browser
This tool runs locally on your device using Chrome Built-in AI (Gemini Nano). If you are using Google Chrome, you can enable on-device AI in a few seconds.
Regex Compatibility
Synthesizes standard ECMAScript / PCRE expressions suitable for JavaScript, TypeScript, Python (re module), Go, PHP, and Ruby.
Testing Safety
Evaluation of test strings occurs entirely in your browser JavaScript engine without external network dependencies.How ecsot Local AI Regex Generator Works
Describe Requirement
Write in plain English what string pattern you need to match or extract.
On-Device Synthesis
Chrome Built-in AI generates the regex pattern and breakdown locally on your hardware.
Live Interactive Testing
Test the generated pattern against sample strings in real-time right inside the browser.
Copy Pattern
Copy the regex pattern ready for JavaScript, Python, or Go codebases.
Tips for Crafting Regex Prompts
- •Be Specific about Boundaries: Specify whether you want a full-string match (using ^ and $) or a substring search pattern.
- •Mention Flags: Indicate whether the pattern should be case-insensitive (i flag) or multiline (m flag).
- •Live Interactive Tester: Use the built-in test input below to verify edge cases before pasting into production code.
- •Zero Remote Queries: Your queries and test data remain strictly on your machine without logging.
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