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CreatorsEasy1 weekendUnder $100Web appWeekend build

Thumbnail Tester

Let real people vote on which YouTube thumbnail they would click.

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The idea

Upload 2 or 3 thumbnail options and share a quick poll. See which one wins, broken down by age and interests.

Who it is for
YouTubers and video marketers
How it makes money
Credits per test
Suggested stack
Next.js, MySQL, Tailwind, hosted on a small VPS
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Thumbnail Tester. A creator uploads 2 or 3 thumbnail images with a video title and gets a share link.

PROMPT 2 OF 3

The share link shows the thumbnails side by side in random order and asks which one they would click. Save votes with no account needed, one vote per device.

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PROMPT 3 OF 3

Show results with percentages and a winner badge, and add credits with Stripe checkout for running more tests.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Thumbnail TesterEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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