About Clamber

The minimalist waitlist platform built for developers who value simplicity and performance.

Why Clamber Exists

I found myself constantly reaching for the same setup: a simple contact form for static sites hosted on GitHub Pages or anywhere without a backend. Every project needed the same thing—collect emails, validate them, export when ready—but existing solutions were either overkill or required complex integrations.

So I built what I needed: a clean API that does one thing exceptionally well. No bloat, no confusing dashboards, no vendor lock-in. Just fast, secure email collection that gets out of your way.

Built Different

Minimalist by Design

Every feature exists for a reason. No bloat, no unnecessary complexity. Just the essential tools you need to collect a list, built well with security and performance in mind.

Developer Experience

Clean JSON APIs, domain-bound security, and documentation that doesn't waste your time. Built by a developer, for developers.

Move Fast

Skip the complexity of enterprise tools, their confusing UIs, and heavy SDKs. Get your waitlist running in minutes, not hours.

Perfect For

Indie Hackers

Validate your MVP without setting up complex infrastructure. One API call and you're collecting signups.

Startups

Keep lead data separate from your main database. Clean separation of concerns, easier compliance, simpler architecture.

Consultants & Agencies

Deploy client waitlists quickly across multiple projects. Domain-bound keys ensure security and proper isolation.

Anyone Comfortable with JavaScript

If you can make a POST request, you can integrate Clamber. No SDKs to learn, no complex setup processes.

The Technical Philosophy

Clamber is built with Phoenix/Elixir—a stack chosen for reliability and performance, not trends. The architecture prioritizes:

  • Fault Tolerance: Thanks to Elixir, your API calls succeed, even under load
  • Security by Default: Domain-bound keys help reduce spam, comprehensive validation, rate limiting
  • Data Ownership: Export anytime, no lock-in, no hidden formats
  • Transparent Pricing: Free to start, €10/month to scale. No surprises

Built by William Cooke

I'm a developer who loves building ideas. Clamber came from my own desire to manage simple form interactivity from client-side code without needing a backend. Though there are many options for this available, I wanted to simplest possible way to get started with my list, without tooling getting in the way.

Clamber, while functionally simple, is built with extensibility, performance, and integrity in mind on the BEAM VM.

Want to know more about my work or connect?

Visit williamcooke.net

Ready to Build?

Stop wrestling with complex platforms. Start collecting signups in minutes with an API that just works.

Start Free Read the Docs

Free plan includes 1 waitlist, 50 contacts, and full API access. No credit card required.