Handy AI ToolsFree in-browser tools for prompt engineers.

Handy AI Tools offers a suite of free, in-browser utilities designed for prompt engineers, LLM builders, and indie developers. Key features include:
- Token Counter: Live token counting for Claude, GPT-4, and Gemini with cost estimates.
- AI Cost Calculator: Estimate monthly API costs across different models.
- Cron Expression Explainer: Validate and convert cron schedules without sign-up.
- Prompt Diff Tool: Structurally compare two prompt versions.
- JSON Schema Converter: Transform JSON schemas into ready-to-use tool definitions.
Utilize these tools to streamline your workflow and enhance your AI projects.