Why We’re Building KwikBill
Every SaaS company solves the same billing problems—tracking usage, calculating charges, handling subscriptions, generating invoices. Yet every company rebuilds this from scratch. KwikBill exists to change that.
The Problem We’re Solving
Building a SaaS product should be about solving customer problems, not wrestling with billing infrastructure. But when you reach the point of needing to charge customers, you face a choice: integrate a third-party billing platform (with monthly fees, vendor lock-in, and limited customization) or build your own billing system (months of development time on infrastructure that doesn’t differentiate your product).
Neither option is good. External platforms are expensive and inflexible. Building in-house is slow and complex. Most teams spend 2-6 months building billing logic that already exists everywhere else.
Our Solution
KwikBill is an open-source billing engine you can self-host and customize. It handles the complex, boring parts of billing—usage metering, proration calculations, invoice generation, payment reconciliation—while giving you complete control over your data and pricing logic.
Built in Go for performance and reliability, KwikBill is designed to be:
- Self-hostable – Your data stays on your infrastructure
- Customizable – Adapt it to your specific business model
- Production-ready – Built for scale from day one
- Developer-friendly – Clean APIs, comprehensive docs
- Community-driven – Open source under AGPL v3
Who’s Behind This?
KwikBill is being built by developers who’ve experienced the pain of building billing systems multiple times. We’re tired of reinventing the wheel, so we’re building something the entire SaaS community can use and improve together.
The project is currently in active development, with plans to launch a public beta in Q2 2025. We’re building in public and welcome feedback, contributions, and early adopters.
Our Vision
We envision a world where SaaS companies can focus on their core product instead of billing infrastructure. Where pricing experimentation doesn’t require engineering sprints. Where switching business models is a configuration change, not a development project.
KwikBill should become the default billing infrastructure for SaaS companies—the same way PostgreSQL is the default database and Nginx is the default web server. Reliable, proven, and free to use.
Why Open Source?
Billing is too important to be a black box. Companies need to understand how their revenue is calculated, customize their pricing logic, and trust that their billing system won’t change or disappear based on a vendor’s business decisions.
Open source gives you:
- Transparency – See exactly how billing calculations work
- Control – Modify the code to fit your needs
- Longevity – The software exists forever, regardless of our company’s fate
- Community – Benefit from improvements made by other users
- Trust – Audit the code yourself for security and correctness
Our Business Model
KwikBill follows the classic commercial open-source model: the software is free, and we charge for convenience and expertise. Most users will self-host for free. Some will pay us to manage infrastructure for them. A few will need enterprise support and custom development.
This model aligns our incentives with users: the better the open-source product, the more people will trust us to run it for them.
Join the Journey
We’re in the early stages of building KwikBill, and we’d love your involvement. Whether you’re interested in using it, contributing code, or just following along, there are ways to participate:
- Join the beta waitlist – Be among the first to use KwikBill
- Follow development – GitHub repository coming soon
- Contribute ideas – Share your billing pain points
- Spread the word – Tell other developers about the project
Let’s Build Something Great Together
Billing infrastructure shouldn’t be a competitive advantage—it should be a solved problem. Let’s solve it together.