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AI & Prompt Engineering Tools
Streamline your LLM workflows.
Optimize your AI development with our suite of privacy-first tools. From generating mock data with local LLMs to optimizing prompts for Claude and GPT, these utilities help you build smarter applications without leaking sensitive data to the cloud.
2 free tools available — all run 100% in your browser.
New
AI Mock Generator
Generate realistic mock data from natural language prompts. Runs entirely in your browser — no API keys required, no data leaves your machine.
New
Zod to LLM Prompt
Convert TypeScript Zod schemas into optimized LLM system prompts. Force Claude, GPT-4, and Gemini to return perfectly structured, predictable JSON.