prompts.chat: World's Largest Open-Source Prompt Library (143K+ Stars)
What it is
The largest open-source prompt library with 143,000+ GitHub stars, featured by Forbes and referenced by Harvard and Columbia. Works across ChatGPT, Claude, Gemini, Llama, and Mistral. Includes a free interactive prompt engineering book (25+ chapters), fill-in-the-blank templates, and a kids' learning module. Community-driven with continuous updates.
Why we picked it
The definitive free prompt resource, period. Their interactive "Art of Prompting" book alone is worth the recommendation. Students in Modules 1 to 2 should bookmark this immediately. The multi-model compatibility means prompts work regardless of which AI the student prefers. Harvard-referenced credibility.
How you might use it
Most business owners find AI useful in one or two specific spots, not everywhere at once. The AI Opportunity Map module is about finding those spots first, before spending time or money on tools. Read this with one area of your day in mind and see what connects.
Visit the resource
Go to prompts.chatOpens the official site in a new tab.
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The guided path
Want the guided path? The playbook shows you what to build first, step by step.
Seven workflows. The best tools from this library, arranged into a sequence that gets your first automation running in your first session.