JoinWaitlist.dev
Validate ideas with mock sales, not just email signups.
Stop guessing if people want your product.
Find out who's willing to pay — before you build.
🧩 How It Works
Describe your idea
"I'm testing a $9 lifetime tool for solo founders to manage tasks."
Create your mock sale page
Use our pre-built templates — no design tools or code needed.
Share your link anywhere
Reddit, Indie Hackers, X, communities — it looks real and trustworthy.
Track real buyer intent
Visitors click Buy Now, go through a real Stripe-style checkout flow (no charge made), and you see conversion metrics instantly.
👥 Who Is It For?
Solo Founders
Validate your SaaS idea before writing a single line of code. Know if people will actually pay for your solution.
Early-Stage Teams
Get buy-in from co-founders or investors with real conversion data. Show demand before asking for resources.
Serial Builders
Rapidly test multiple ideas and focus on the ones with proven demand. Kill bad ideas fast, double down on winners.
💡 Why Just Collect Emails When You Can Test Payment Intent?
Every indie founder has been there:
"People said they'd buy — but no one actually did."
JoinWaitlist.dev goes beyond the classic "coming soon" page.
It simulates a real checkout flow — letting you validate not just clicks, but commitment.
JoinWaitlist.dev helps you:
- • Find real demand before investing months.
- • Share credible proof with investors or co-founders.
- • Kill bad ideas fast, so you can focus on winners.
⚡ What Makes It Different
Old Way
- ❌"Join our waitlist" buttons
- ❌Vanity metrics
- ❌Fake confidence
New Way
- ✅"Buy now (mock sale)" checkout
- ✅Real conversion signals
- ✅Real customer intent
We built JoinWaitlist.dev for builders who want truth over hype.
See how many users would actually pull out their wallet.
💰 Pricing — Simple, Honest, One-Time
No subscriptions. No code. Just truth.
💬 Makers Already Using It
"I found 14 people ready to pay for my idea — before building a thing."
"It's like a landing page, checkout, and validation engine in one."
"Best $9 I ever spent validating an idea."
🧠 FAQ
💳 What's a "mock sale"?
A realistic checkout flow (no real payment) to test if users click Buy — the strongest validation signal.
📊 What metrics do I get?
So far, it's total number of submissions and email list export. More like conversion rates, page visits, intent heatmap are coming!
🌐 Can I use my own domain?
You can use youridea.joinwaitlist.dev. Custom domain is not supported yet.
💌 Can I still collect emails?
No at the moment. But it's a feature coming soon.