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The Prompt Index

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Prompt database and AI toolbox offering curated prompts, prompt-building tools, and a community for prompt engineers.

What it does

The Prompt Index is a hub combining a searchable database of 700+ curated AI prompts with a toolbox of AI utilities such as a prompt generator, prompt optimizer, AI humanizer, CV builder, and image/skill databases. It also offers AI courses and a community of prompt engineers.

How to use: Users can explore the prompt database, use the prompt search engine, submit their own prompts, and join the Telegram community. They can also access learning resources like courses and blog posts. To submit content or use the AI Toolbox, users need to sign up or log in.

Core features

Searchable database of 700+ curated prompts
AI Toolbox with prompt generator, optimizer, and builder
AI Humanizer for rewriting AI-generated text
Skills/agent database for SKILL.md files
Image and GPT databases with leaderboard
Prompt sharing via expiring links

Best for

→Find pre-written prompts for ChatGPT, Claude, or Gemini
→Optimize an existing prompt for better AI output
→Humanize AI-generated writing to sound more natural
→Share prompts securely with a team via expiring links
→Browse curated AI courses to learn prompt engineering
Toolspool rankingby monthly traffic

Reviews

Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.

Behind the prompt: Prompting tips for Claude.ai
Anthropic · 88K views

Tutorials

Step-by-step: exactly how to get things done with it.

Let The LLM Write The Prompt 2025 | Design Perfect Prompts for AI Agent | Prompt Mistakes (PART 1/7)
Amine DALY · 140K views