Updated
September 10, 2026
Harness FME delivers developer-first feature flags with enterprise governance and experimentation beyond ConfigCat.
Feature Comparison
| Feature | Harness | ConfigCat |
|---|---|---|
| Core Features | ||
| Feature flags / toggles | ||
| Targeting rules and segments | ||
| A/B / multivariate testing | ||
| SDK support (20+ languages) | ||
| Percentage rollouts | ||
| Progressive delivery | ||
| Experimentation & Analytics | ||
| Built-in experimentation platform | ||
| Statistical significance testing | ||
| Metric tracking and goals | ||
| Data export / warehouse integration | ||
| Governance & Security | ||
| RBAC | ||
| Audit trails | ||
| OPA / Policy-as-Code | ||
| SSO / SAML | ||
| Approval workflows | ||
| Git-based workflow | ||
| Integration | ||
| CI/CD integration | Native Harness integration | |
| Jira integration | ||
| Slack / Teams notifications | ||
| Webhook support | ||
Key Differentiators
What Harness FME offers beyond ConfigCat
Built-in experimentation platform
Harness FME includes a full experimentation platform with A/B testing, statistical significance analysis, metric tracking, and automatic winner selection — all managed alongside your feature flags.
ConfigCat is a feature flag service without experimentation capabilities. A/B testing and statistical analysis require integration with completely separate tools.
Enterprise governance and OPA enforcement
Harness FME provides OPA policy enforcement for flag changes, mandatory approval workflows, Git-based flag management, and full audit trails — meeting enterprise compliance requirements out of the box.
ConfigCat has basic team management and permission controls. For regulated industries requiring change management, audit trails, and policy enforcement, ConfigCat requires additional tooling.
Decision Guide
ConfigCat is good for
- Simple feature flags with low cost are all you need
- Small team with basic flag management requirements
- You prefer ConfigCat's simple SDK model and pricing
Harness is best for
- Built-in A/B testing and experimentation are requirements
- Enterprise governance, OPA, and audit trails are needed
- Native CI/CD pipeline integration for progressive delivery is important
Summary
ConfigCat makes flags easy. Harness FME makes them enterprise-grade.
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