🚀 AI Prompt Toolkit — 10+ free in-browser AI prompt engineering tools: Variable Extractor, JSON Schema Generator, Validator, Token Estimator, Prompt Optimizer & more. No sign-up, no servers.
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Updated
Jul 27, 2026 - TypeScript
🚀 AI Prompt Toolkit — 10+ free in-browser AI prompt engineering tools: Variable Extractor, JSON Schema Generator, Validator, Token Estimator, Prompt Optimizer & more. No sign-up, no servers.
Lighthouse for Claude prompts - estimate tokens, recommend models, refine prompts before you send.
Offline AI token, cost, and quota estimator for iPhone, iPad, and Mac.
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