Rate Limiter Generator
Generate rate limiting configuration from plain English descriptions. Supports IP, user, and API key-based limiting with sliding window and fixed window options for Express, Fastify, and other frameworks.
🚀 Stop wrestling with rate limit configs. Describe your limits in plain English and get working code instantly. Just run one command with your rule—like "100 requests per minute per IP"—and get ready-to-use configuration for Express, Fastify, and more. Zero setup required.
💡 Perfect for protecting APIs from abuse, implementing usage tiers, preventing brute force attacks, and enforcing fair use policies. Whether you're building a free tier or securing login endpoints, this tool handles IP-based, user-based, and API key limiting with sliding or fixed windows.
✨ Part of the LXGIC Dev Toolkit—one of 110+ free tools with no paywalls, sign-ups, or hidden costs. MIT licensed and built for developers who want things to just work.
Requirements
OpenAI API key for natural language processing of rate limit rules