Calculators
Calculators
Every calculator in the AllUtil catalog — each one a real implementation with tests behind it, documented on its own page.
- 5 tools
- Runs in your browser
- No sign-up
5 tools
- Context Window CalculatorCalculators
Paste your prompt, pick a model, and see how much of its context window you use and how many tokens remain for the reply.
- LLM Token CounterCalculators
Paste any text to count its tokens for GPT-5.6, Claude, and Gemini models, and see what it costs to send.
- OpenAI Token CounterCalculators
Paste text to count tokens and calculate API costs for any OpenAI model instantly.
- MCP Security ScannerCalculators
Scan MCP server configurations for security issues including missing auth, CORS, and HTTPS.
- Embedding Dimension CalculatorCalculators
Enter your embedding count and dimensions to see exactly how much storage you need across every precision level.