Free Tools

12 tools. No sign-up.

Built on the Claude OS framework. Open any tool and use it immediately — no email, no account, no paywall.

Claude session tools
Free
Session Optimizer
Token estimator, prompt compressor, and session planner. See how much of your context window a prompt uses before you send it.
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Free
Prompt Grader
Score any prompt 1–10 on 5 dimensions — role, specificity, format, constraints, success criteria — with specific fixes for each.
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Free
Mode Picker
Answer 3 questions about your task. Get the exact Claude OS mode and trigger phrase to use.
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Free
Context Window Visualiser
See how your system prompt, memory file, conversation, and documents stack up against Claude's 200k token window.
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Free
AI Task Router
Paste any task. Get told which AI to use — Claude, Perplexity, ChatGPT, or Gemini — and the exact approach for each.
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Free
Session Handoff Generator
Fill in what you did this session. Get a compact handoff prompt ready to paste at the start of the next one.
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Free
AI Output Auditor
Paste any AI-generated text. Flags hallucination phrases, AI writing patterns, and unsourced claims with specific fixes.
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Free
Multi-AI Task Splitter
Paste a complex project. Get it split into sub-tasks — each assigned to the best AI tool with the exact prompt to use.
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Business tools
Free
Business Health Checker
Enter 8 key metrics. Get a health score with RAG status, top 3 risks, and specific actions. Works for 4 business models.
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Free
Breakeven Calculator
Fixed costs, price, variable costs → breakeven in units and days plus three scenarios. Slider to test assumptions.
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Free
SOP Builder
Answer 8 questions about a process. Get a formatted SOP with steps, owners, quality checks, and review date.
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Free
Pre-Mortem Generator
Describe any plan. Get the top 5 failure modes with probability, impact, and mitigation — before you commit.
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