Free AI tools

Tools you'll use every day

Free, fast, and private — every tool runs entirely in your browser. No sign-up, no data collection, no limits.

Prompt Optimizer

Paste a weak prompt and get it rewritten properly.

Score any prompt out of 100 with specific fixes.

Estimate GPT & Claude tokens for any text, instantly.

Compare OpenAI, Claude & Gemini API costs side by side.

Build a professional system prompt with the 5-part framework.

Format, minify and validate JSON — great for LLM outputs.

Split long documents into chunks any chat AI can handle.

Check if your prompt fits GPT, Claude or Gemini limits.