Prompt library

96 prompts in 8 categories. Search by task, or pick a category.

Writing

Emails, edits, tone fixes and first drafts.

All 12 writing prompts

Proofread and explain every change

Fixes spelling, grammar and punctuation, then lists each change with a reason so you learn the pattern instead of just accepting edits.

beginner2 blanks to fill

Rewrite jargon in plain English

Turns technical, legal or corporate text into plain English for a specific reader, and flags anything that could not be simplified safely.

beginner2 blanks to fill

Coding

Debugging, reviews, tests and refactors.

All 12 coding prompts

Brief a coding agent on a task

Writes a clear task brief for an AI coding agent: scope, files, constraints and a definition of done, so it changes what you meant.

advanced3 blanks to fill

Choose an open model to run locally

Narrows down which open-weights model, size and quantization level fit your hardware and task, with trade-offs explained.

advanced3 blanks to fill

SEO

Briefs, titles, schema and AI search visibility.

All 12 seo prompts

Group keywords into topic clusters

Sorts a raw keyword list into clusters by search intent, so you know which keywords one page can target together.

intermediate1 blank to fill

Marketing

Positioning, ads, landing pages and launches.

All 12 marketing prompts

Draft a positioning statement

Turns what you know about your product, customers and competitors into a clear positioning statement and the messaging that follows from it.

intermediate4 blanks to fill

Plan a month of social posts

Builds a 4-week posting plan with themes, formats and post ideas grounded in what your audience cares about.

beginner4 blanks to fill

Business

Plans, pricing, meetings and decisions.

All 12 business prompts

Draft a one-page business plan

Turns a business idea into a one-page plan covering customer, offer, pricing, channels, costs and the riskiest assumption to test first.

beginner3 blanks to fill

Estimate the cost of an AI feature

Estimates monthly API costs for an AI feature from expected usage and token prices, and shows which levers reduce cost most.

advanced3 blanks to fill

Research

Sources, summaries, comparisons and fact checks.

All 12 research prompts

Learning

Explanations, study plans and practice questions.

All 12 learning prompts

Productivity

Planning, notes, inbox and weekly reviews.

All 12 productivity prompts

Break a big task into first steps

Splits an overwhelming task into small, concrete steps, and gives you one step you can start in the next five minutes.

beginner2 blanks to fill

Create a project kickoff checklist

Builds a kickoff document covering goals, scope, roles, risks and the first two weeks of work, so the project starts with no loose ends.

beginner3 blanks to fill

Improve any prompt before you use it

Asks the model to rewrite your prompt with clearer context, constraints and output format, and to list what it still needs from you.

intermediate2 blanks to fill

Find a prompt for the task in front of you.

96 prompts in 8 categories. Copy one, fill in the blanks, paste it into any model.

Browse prompts

Promptlexity is a free library of 96 AI prompts and 8 downloadable AI skills across 8 categories, plus a glossary of 64 AI and prompting terms. Each prompt shows the exact text to paste, the variables to fill in, an example of what comes back, and why it works. Each glossary term has a plain-English definition, an example and a common mistake. 6 step-by-step guides cover the basics. No signup, works with ChatGPT, Claude, Gemini and other models.

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