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1090+ Free Prompts

The Free AI Prompt Library

Ready-to-use prompts for ChatGPT, Gemini, Grok & Claude.
Browse curated prompts or generate infinite custom ones instantly.

ChatGPT Gemini Grok Claude
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Works With Every Major AI

All prompts are tested to work great with these AI assistants. Click to open the AI and paste your copied prompt.

ChatGPT chat.openai.com ↗
✦
Gemini gemini.google.com ↗
𝕏
Grok x.com/i/grok ↗
◆
Claude claude.ai ↗

The PARTS Framework

Every prompt in PromptBook is built using this 5-part formula that gets you the best results from any AI.

PPurpose

What's the goal?

→
AAction

What should the AI do?

→
RResult

What format do you need?

→
TTarget

Who is this for?

→
SStyle

What tone or voice?

1 Read the prompt below
2 Fill in the [brackets] with your details
3 Click Copy & paste into any AI
📋 Full Prompt (copy this)
Paste into → ChatGPT Gemini Grok Claude
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