What is 0list?
0list is a self-hosted waitlist system that runs entirely on Cloudflare’s infrastructure. It lets you collect signups for your product launch, beta program, or any other waitlist scenario.
Why 0list?
The problem: You’re launching something and need to collect emails. You could use a SaaS waitlist tool (monthly fees, data on someone else’s servers) or build something yourself (time-consuming, another thing to maintain).
The solution: 0list gives you a fully-featured waitlist system that:
- Costs almost nothing - Runs on Cloudflare’s generous free tier
- You own your data - Everything lives in your Cloudflare account
- Works globally - Deploys to 300+ edge locations worldwide
- Takes minutes to deploy - Not hours or days
How It Works
The flow is simple:
User signs up
Someone visits your landing page and submits their email (and any custom fields you’ve configured). Your form sends a POST request to your 0list API.
0list stores the signup
The API validates the email, checks for duplicates, and saves the signup to your D1 database. If you’ve enabled double opt-in, it sends a confirmation email.
User confirms (optional)
If double opt-in is enabled, the user clicks the link in their confirmation email. Their signup is marked as verified.
You manage signups
Log into your admin dashboard to see everyone who signed up. Search, filter, export to CSV, or invite users when you’re ready to launch.
The Three Parts
The API
A REST endpoint that handles signups. You integrate this with your landing page:
fetch('https://your-worker.workers.dev/api/waitlists/my-product/signup', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ email: 'user@example.com' })
})The API validates emails, prevents duplicates, and optionally sends confirmation emails.
The Admin Dashboard
A web interface for managing everything:
- Create waitlists - Different lists for different products or launches
- View signups - See who signed up, when, and their verification status
- Search & filter - Find specific users or segments
- Export data - Download CSVs for importing elsewhere
- Configure settings - Branding, custom fields, email templates
The Database
Cloudflare D1 stores all your data - waitlist configs, signups, verification tokens. You never touch SQL directly; the dashboard handles everything.
What Can You Customize?
| Feature | What You Can Do |
|---|---|
| Branding | Primary color for emails and embeds |
| Custom Fields | Collect more than just email (name, company, etc.) |
| Double Opt-in | Require email verification |
| Email Templates | Customize confirmation and welcome emails |
| CORS Origins | Control which domains can submit signups |
Typical Use Cases
- Product launches - “Sign up for early access”
- Beta programs - “Join the beta waitlist”
- Newsletter signups - Simple email collection
- Event registration - Collect attendee info
- Feature announcements - “Get notified when X ships”
Tech Stack
For the curious: Cloudflare Workers for the runtime, D1 for the database, Hono for the API framework, React for the dashboard, and Cloudflare Access for authentication.