Divisor is an open-source, stateless A/B testing and feature flag platform designed to scale to millions of users with minimal infrastructure.
A fundamentally different approach to A/B testing infrastructure.
Decisions happen at the edge using deterministic hashing. No centralized bottlenecks.
The same user always sees the same variant across sessions.
Users are assigned to variants using mathematical hashing — always consistent.
Designed to handle millions of users with Redis and edge functions.
Four steps. No complexity.
Define your experiment in the dashboard with variants and traffic allocation.
The client SDK retrieves the test configuration from the edge.
A mathematical hash assigns the user to a variant — no randomness.
The correct variant is returned instantly at the edge.
Choose the plan that best fits your company's stage.
Perfect for testing and exploring the tool.
For rapidly growing teams.
Full scale with unlimited sessions.
Divisor is designed with the same principles you apply to your own infrastructure.
Everything you need to know about Divisor.
Inspect the code. Fork it. Self-host it. Divisor is built for the community.