A community where ideas get backed

Throw your idea.
We'll help it land.

CurveBall connects people with ideas to the builders, mentors and backers who can make them real. Share the spark. Find your squad. Ship it together.

One line is enough. It'll land on the Idea Wall below.

Pick an arena

Ideas live in every arena.

Sports, style, code, canvas or the open road — CurveBall has a corner for it. Tap an arena to see what's brewing there.

The Idea Wall

Ideas looking for their people.

Back the ones you love. Raise your hand where you can help. Preview wall — starter ideas are examples, yours stay on this device until launch.

How ideas land

From "what if" to "it's live."

Every idea follows the same curve. Scroll and watch the ball travel — here's what CurveBall gives you at each stop.

  1. 01

    Spark

    Drop your idea on the wall — rough is fine. The community reacts, asks sharp questions and tells you what excites them.

    • Honest feedback
    • Early backers
  2. 02

    Pitch

    Ideas with momentum get a slot at a monthly Pitch Night — online and in your city. Five minutes, one slide, a room full of people who want you to win.

    • Pitch Nights
    • Pitch coaching
  3. 03

    Squad

    We match you with builders, designers and mentors who raised their hand for your idea. Nobody builds alone here.

    • Co-builders
    • Mentor match
  4. 04

    Build

    Six-week build sprints with weekly check-ins, shared tools, workspace access and a community that keeps you honest.

    • Build sprints
    • Tools & spaces
  5. 05

    Launch

    Demo Day puts your work in front of backers, partners and first customers. Then you come back and help the next idea land.

    • Demo Day
    • Backer intros

Pick your position

Every team needs every player.

You've got the idea.

You see a problem nobody's solving, or a better way to do something. You don't need a plan, a team or money yet — just the spark.

You get

    You give

      Join as a Thinker

      No idea yet?

      Spin for a spark.

      Three reels. One weird, wonderful prompt. Some of the best ideas start as a joke.

      Build a…
      community app
      for…
      college students
      that…
      runs on WhatsApp

      FAQ

      Fair questions.

      Will someone steal my idea?

      Ideas are cheap; execution is everything — and that's what CurveBall helps with. Share as much or as little as you like. You can keep details private and share them only with the squad you choose.

      Do I need a team or a business plan?

      No. Most ideas arrive as one sentence. The whole point is to find the people and the plan here.

      Does it cost anything?

      Joining, posting ideas and backing ideas is free. Some build sprints or events may carry a small fee for venues and materials — always shown upfront.

      What kind of ideas belong here?

      Anything you'd want to see exist: apps, small businesses, social projects, creative work, events, products. If it helps people and it's legal, throw it.

      I'm an investor, company or college. Can we partner?

      Yes please — we're looking for backers, spaces, mentors and challenge partners. Write to hello@curveball.in.

      Join CurveBall

      Step up to the crease.

      Founding members get first slots at Pitch Night, early Idea Wall access and a say in what we build next.

      I'm joining as a…
      Arenas I care about

      Raise your hand

      How can you help?