Featurevisor

Project

Alternatives

Choosing a feature flag tool means choosing how your team reviews configuration, distributes it and operates it in production. Featurevisor keeps definitions in Git and compiles them into static JSON datafiles that SDKs evaluate locally.

How the approaches differ

These differences concern architecture and workflow, not every feature or price. Products and their editions change, so check each tool's own documentation. Reviewed on 5 October 2026.

Where definitions live

Featurevisor's definitions are files in your Git repository, reviewed through the change process you already have. Managed platforms offer a web interface and APIs, and some integrate with infrastructure tooling.

Whether evaluation needs the network

A Featurevisor SDK evaluates locally once it has a datafile, and fetching and refreshing that datafile is up to your application. Other tools evaluate locally too. LaunchDarkly documents different models by SDK type: its server SDKs evaluate cached rules, while client SDKs receive results for their context. Optimizely Feature Experimentation distributes datafiles so SDKs evaluate rules from a local copy. Static configuration and local evaluation are not unique to Featurevisor, so compare the SDK you would deploy.

How changes are approved

With Featurevisor, your Git host and CI decide review and approval. Featurevisor does not enforce repository permissions itself. Approvals do not require Git elsewhere: Unleash offers change requests with approvals in its Enterprise edition.

How configuration is tested

Featurevisor tests features, segments, global variables and scenarios with YAML specs, and native SDK runners evaluate the same specs. Compare each platform's testing, previews and application integration against the checks your team needs.

How experiments are analysed

Featurevisor assigns variations and sends exposures to your analytics, but has no statistical analysis service of its own. Unleash documents A/B testing with variants. Assess the analysis and reporting of the platform and edition you are considering.

Where user data goes

Featurevisor's SDKs make no network requests, so the context you evaluate with stays in your application, and exposures go only to the analytics you choose. Ask of any platform what its SDKs send, such as contexts or evaluation events, and where that data is processed.

Who runs distribution

You publish Featurevisor's datafiles to hosting or a CDN of your choice. Decide whether you want a provider to manage delivery, or to run that infrastructure yourself.

What sets Featurevisor apart is the whole workflow: authored files, schema validation, declarative tests, Git review and datafiles you distribute yourself. Local evaluation avoids a network request for each decision, though it still takes computation time.

When Featurevisor fits

Featurevisor fits teams that want configuration changes to follow the same review process as code. You can test definitions, review readable changes, publish a datafile per application and choose SDKs or OpenFeature providers for your applications.

It also supports global variables for configuration that has its own lifecycle, independently of feature flags.

Use sets to separate configuration for different release lanes or customers, and promotions to move reviewed definitions between them. The Catalog lets colleagues browse definitions and tests without reading YAML. The Featurevisor skill gives coding agents guidance for working with those same project files.

Featurevisor is MIT licensed. There is no Featurevisor service subscription, but your hosting, CI and operational work still have costs.

What your team takes on

Your team owns repository access, CI checks, hosting, caching and how applications refresh. Product teams that prefer a managed editing interface may find a platform with built in editorial workflows more convenient.

Anyone can read configuration sent to a browser or a phone. Feature flags do not replace authorization on your server, and datafiles must never contain secrets.

Try the workflow

Follow the Quick start, inspect a runnable example and test a small configuration change with your normal review process. Evaluate the operational responsibilities alongside the SDK API.

Previous
Troubleshooting