RegexFast

Generate and Test Regex with AI Agent

AI coding agent that generates, executes, and evaluates to deliver accurate regex patterns. Automatically tested in a secure sandbox for reliable results.

Features

• 🤖 AI-Powered Regex Generation - Intelligent agent generates regex patterns based on your requirements
• 🧪 Automated Testing - Patterns are executed and validated in a secure sandbox environment
• ⚡ Real-Time Results - See matches and test results instantly
• 💬 Interactive Chat Interface - Refine patterns through natural conversation
• 🎯 Common Regex Snippets - Quick access to frequently used patterns
• 🎨 Modern UI - Clean, responsive design built with Next.js and Tailwind CSS

Getting Started

Prerequisites

• Node.js 18+
• npm/yarn/pnpm/bun

Installation

# Install dependencies
npm install

# Run the development server
npm run dev

# For full development (frontend + worker)
npm run dev:all

Open http://localhost:3000 to see the application.

Architecture

• Frontend: Next.js 14 with App Router, React, Tailwind CSS
• Backend: Cloudflare Workers with Durable Objects
• AI: Vercel AI SDK with agent framework
• Sandbox: Secure code execution environment with Daytona

Project Structure

src/
├── app/              # Next.js app router pages
├── components/       # React components
├── agent-worker/     # Cloudflare Worker backend
├── hooks/           # Custom React hooks
└── lib/             # Utilities and helpers

Documentation

• Agent Backend Local Development
• Architecture Decision Records

Deploy

The application can be deployed on:

• Frontend: Vercel, Netlify, or Cloudflare Pages
• Backend Worker: Cloudflare Workers

See deployment documentation for platform-specific instructions.