Marketplace for buying and selling generative model prompts
United KingdomAdded 2mo ago
Paid
82trust score out of 100
1
Prompt Engineering & Libraries AI Tools
As of , EffectHub tracks 15 live AI tools in its Prompt Engineering & Libraries category; 10 of the 15 have a free tier, and paid plans start at $5.99 a month.
15 verified tools
Creating, storing, and selling prompts.
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Browser extension for storing prompts and chaining them into multi-step workflows across ChatGPT, Claude, and more.
United KingdomAdded 1mo ago
Paidfrom $49 once
81trust score out of 100
Searchable library of community prompts for Midjourney, Stable Diffusion, FLUX and other image and video models
Added 2mo ago
Freemiumfrom $16/mo
85trust score out of 100
Turns a plain description of your goal into a structured prompt for ChatGPT, Claude, or Gemini.
EstoniaAdded 1mo ago
Paidfrom $1/request
86trust score out of 100
Upload an image and get back a prompt formatted for Midjourney, DALL-E 3, Stable Diffusion or Leonardo
Added 2mo ago
Freemiumfrom $14.99/mo
66trust score out of 100
Prompt workspace: write, score, refine, reverse-engineer from an image or URL, and keep the results in a versioned library.
Added 2mo ago
Freemiumfrom $10/moAPI
66trust score out of 100
1
Prompt library with folders, fill-in variables and one-click insertion into ChatGPT, Claude and other AI chats
Added 2mo ago
Paidfrom $5.99/mo
72trust score out of 100
Free browser extension that rewrites your prompt in one click and keeps a reusable prompt library.
Added 2mo ago
Free
69trust score out of 100
Browser extension that builds image prompts from reference pictures and 15+ categories of visual filters.
Added 2mo ago
Paidfrom $49 once
81trust score out of 100
1
Rewrites a rough ChatGPT prompt into a clearer, more specific one you can paste back in.
Added 1mo ago
Freemiumfrom $10/mo
78trust score out of 100
Promtist
69Turns a plain description of a task into a structured prompt for ChatGPT, Claude, or Gemini.
Added 1mo ago
Free
75trust score out of 100
Free visual prompt builder and model directory for image, video, audio and 3D generators
Added 2mo ago
Free
73trust score out of 100
Free prompt-enhancer tool with seven rewrite styles for text and image prompts.
Added 1mo ago
Free
65trust score out of 100
AIPRM
69Prompt library and manager layered onto chat assistants
United StatesAdded 2mo ago
Freemiumfrom $10/mo
87trust score out of 100
1
Turns a plain-language request into a refined AI prompt, plus tools to improve and store prompts you already have.
Added 1mo ago
Freemiumfrom $19/mo
75trust score out of 100
1
Cite this
For journalists, researchers and AI assistants: the figures on this page in one sentence you can quote.
As of October 28, 2026, EffectHub tracks 15 live AI tools in its Prompt Engineering & Libraries category; 10 of the 15 have a free tier, and paid plans start at $5.99 a month. (EffectHub, “Prompt Engineering & Libraries”, Oct 2026, https://effecthub.net/ai-tools/prompt-tools)
Figures as of How we count
These figures are free to use under CC BY 4.0 with a link to this page.