All tools

Each tool runs in your browser and works without an account.

• LLM API Cost CalculatorEstimate per-request, daily, monthly and yearly API spend from token counts and prices you enter.
• LLM Token CounterCount characters and words and get an approximate token estimate for any text.
• JSON Formatter and ValidatorFormat, minify and validate JSON with clear syntax error messages.

New to the topic? Read the guides.