Chat
Turn Messy Lecture Notes Into a Study Guide That Flags What's Testable
Converts scattered, messy lecture notes into an organized study guide that flags what's actually likely to be tested and checks…
AI Brain Injection
Craft better work with AI that already knows therecipe.
32 free, battle-tested prompts for students, creators, developers and everyone who makes things, plus complete AI-prompt vaults for the goals one prompt cannot finish. Copy, paste, craft.
Free forever · no signup to copy · works with ChatGPT, Claude & Gemini
The crafting recipe
32+
free prompts
10
categories
Free
forever, no signup
ChatGPT · Claude · Gemini
works everywhere
Why prompts fail
Stop punching trees with your bare hands
Raw AI gives raw results. The difference between noise and output you can ship is the recipe you start from.
You retype the same half-remembered prompt every time, and get different mediocre results.
Install a proven system prompt once. Every session starts with the recipe already loaded.
Generic “act as an expert” prompts produce generic, wall-of-text answers.
Our prompts pin the role, the rules and the output format, so the answer arrives ready to use.
Your notes, tasks and AI chats live in five different places, and nothing connects.
The Second Brain templates give every capture a home, and pair with prompts that fill them.
Prompt lists with 500 entries that you bookmarked once and never opened again.
A curated library, filtered by what you actually do: study, create, code, write, teach.
Fresh from the furnace
Featured prompts
A taste of the library. Copy any of these right now, no account needed.
System
Generate Code From a Spec Without the Doom-Prompting Loop
Stops the AI from confidently guessing your tech stack, skipping edge cases buried in the spec, and dumping code that…
System
Write Persuasive Ad or Email Copy That Doesn't Read Like AI Wrote It
Kills the polite, middle-of-the-road copy AI defaults to by refusing to write until you hand over your real audience and…
Chat
Build a Loan-Ready Business Plan From Your Real Numbers (No Hallucinated Financials)
Interviews you for the actual numbers and facts of your business, then writes a tight, funder-ready business plan with financials…
System
Brainstorm Feature and Interface Ideas Grounded in Your Real Product - Not the Same Automation-Reminder-Dashboard List
Stops the useless 'give me feature ideas' output that always lands on automation, recommenders, reminders and dashboards. Forces the AI…
System
Plan a Travel Itinerary That Survives Real-World Jet Lag, Opening Hours and Terrain - Not Just the Distance Math
Fixes the way AI itineraries actually fail you: they get the distance and the list of sights right but ignore…
AI-Prompt Vaults
Complete vaults for the jobs one prompt cannot do
A free kit to try and a one-off purchase to unlock the whole folder. Built for students, creators and developers.
NewStudent Study Planner Vault
A revision plan that survives Wednesday.
- Every topic scheduled three times, not once
- Works on free ChatGPT, Claude or Gemini accounts, nothing installs
- First finished plan in about four minutes
4.9/5· 36 sold
Free to try
NewContent Creation Calendar Vault
A month of content, dated and costed.
- Every post dated, hooked and costed in hours
- Works on free ChatGPT, Claude or Gemini accounts, nothing installs
- First dated month in about four minutes
4.9/5· 22 sold
Free to try
NewDeveloper Sprint Tracker Vault
A sprint plan you can actually commit to.
- Capacity checked, so you see what will not fit
- Works on free ChatGPT, Claude or Gemini accounts, nothing installs
- First sprint plan in about four minutes
4.9/5· 17 sold
Free to try
No sign-up needed
Free tools, built to be used and forgotten
Small, fast browser-only utilities that pair with the prompt library. Nothing uploaded, nothing to install.
Crafters' log
What people build with it
Real crafters, real output, pulled from feedback we get every week.
“The flashcard prompt turned my 40-page pharmacology notes into a study deck in one evening. I stopped dreading exam weeks.”
Amara K.
Nursing student
“I used to spend two days per script. The Script Architect prompt gets me a solid structure in twenty minutes. I just add my stories.”
Jonas R.
YouTube creator, 85K subs
“The code review system prompt catches the edge cases I'm too tired to see at 6pm. It's like having a patient senior on call.”
Priya S.
Frontend developer
“The Ruthless Editor cut 28% of my draft and it read better. I was mildly offended and completely converted.”
Miguel T.
Freelance copywriter
“Lesson plans, rubrics and three levels of differentiated worksheets before my coffee gets cold. This library gave me my Sundays back.”
Hana L.
High school teacher
The weekly craft
One crafted prompt, every week
A single genuinely useful prompt in your inbox each week, with the reasoning behind why it works.
Free. Unsubscribe anytime. No spam, ever.
FAQ
Common questions
Still wondering something? Start here.
Is MDCrafter really free?
Yes. Every prompt in the library is free to copy and use, and the workspace templates are free downloads. A Pro bundle with exclusive packs is coming later. The free library stays free.
Which AI models do the prompts work with?
Every prompt is tested with ChatGPT, Claude and Gemini unless tagged otherwise. Image prompts are written for Midjourney. Most prompts are model-agnostic: good structure travels well.
What's the difference between a system prompt and a chat prompt?
A chat prompt is a single well-structured request you paste into a conversation. A system prompt defines the AI's role and rules for a whole session: you install it once in custom instructions, a Claude Project or a Gemini Gem. Each prompt in our library is labeled with its type.
Can I use these prompts for commercial work?
Yes. Use them in your job, your client work, your business. Just don't repackage and sell the library itself.
What is the 'Aesthetic Second Brain'?
Our collection of workspace templates: PARA-style dashboards, planners, trackers and vaults designed to be calm and minimal instead of overwhelming. They pair with the prompt library: capture with AI, organize with the templates.