Divisor review
A developer-focused CRO tool for edge-based experiments, with a free plan and self-hosting option.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Divisor is an open-source A/B testing and feature-flag platform for frontend applications. It is aimed at frontend and product engineers, tech leads, and teams building modern web applications that want to manage experiments through code. Edge execution and deterministic hashing assign users to variants, while the SDK and analytics API support variant retrieval and conversion tracking. It is available as a hosted service or for self-hosting under an MIT license.
Experiment decisions are made at the edge, and assignments are stateless, without per-user session storage. Teams can manage experiments and traffic allocation in a dashboard, then use the JavaScript/TypeScript SDK, including React and Angular usage, to retrieve variants and track conversions through the SDK or API. The feature set covers A/B tests, frontend feature experiments, flags and gradual rollouts. This approach suits engineering teams comfortable working in application code; there is no visual editor, so teams seeking a visual workflow for building or editing variations should look elsewhere.
The Free plan costs $0 per month and allows 1 active test, 1 tenant, 1 domain and 1,000 user sessions per month. Growth costs $109 monthly or $1,308 annually, with 5 active tests, 1 tenant, 1 domain and 5M monthly sessions. Pro is $219 monthly or $2,628 annually; it includes unlimited tests and sessions, 3 tenants and 3 domains. Divisor supports cloud and self-hosted deployment, while its listed integrations center on JavaScript/TypeScript, React and Angular; documentation is the listed support channel. The project is described as being in early stages, so teams prioritizing a more established product presence, broader integrations or audience targeting should consider alternatives. For developers seeking low-cost, code-led edge experiments, the free tier offers a way to begin.
Divisor pros and cons
- Where it wins
- Edge execution and deterministic hashing assign users consistently to variants.
- Combines A/B tests, feature experiments, feature flags and gradual rollouts.
- Free plan and MIT-licensed self-hosting option provide ways to start.
- Where it doesn't
- No visual editor for creating experiments.
- Growth is limited to 5 active tests, 1 tenant and 1 domain.
- Its integrations center on JavaScript/TypeScript, React and Angular.
Divisor fact sheet, pricing and score →
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