GO Feature Flag
GO Feature Flag: A self-hosted, file-based flag system for infrastructure-focused teams. Ranked #16 of 27 in Feature Flag Software by our editors (7.5/10); pricing: Free plan; best for infrastructure teams wanting file-based open-source flags.
At a glance
- Editor score7.5 / 10
- PricingFree plan
- Best forInfrastructure teams wanting file-based open-source flags
- Free planYes
- Paid fromFree
- Percentage rolloutsYes
- Facts checked22 Sep 2026
Where it wins
- Unlimited feature flags on the $0 Opensource plan
- Supports percentage, progressive, scheduled, and experimentation rollouts
- Connects with OpenFeature SDKs and many configuration backends
Where it doesn't
- Self-hosted deployment puts infrastructure responsibility on your team
- The Opensource plan includes community support only
- Enterprise support features are separate from the Opensource plan
Our verdict on GO Feature Flag
GO Feature Flag is an open-source, self-hosted feature flag management system for software teams that want control over configuration and deployment. It stores flags in YAML, JSON, or TOML files and evaluates them through OpenFeature SDKs and providers. Its feature set covers targeting rules based on evaluation-context attributes, percentage rollouts, progressive rollouts, scheduled rollouts, and experimentation or A/B testing rollouts. Infrastructure teams are the clearest fit, particularly when avoiding a vendor-managed backend, database requirement, per-seat billing, or proprietary SDK lock-in matters.
The Opensource plan costs $0 USD forever and includes access to all features, use in your own infrastructure, unlimited feature flags, and community support only. The Enterprise plan adds premium support, an SLA on CVE fixes, direct communication with maintainers, integration help, and training material. This creates a straightforward choice: the Opensource plan suits teams able to operate the system and rely on community support, while Enterprise is aimed at organizations that need maintainer access, support services, or training alongside the same core product.
GO Feature Flag also fits a broad infrastructure ecosystem. Configuration can connect through HTTP(S), the file system, Kubernetes ConfigMap, AWS S3, MinIO, Google Cloud Storage, Azure Blob Storage, GitHub, GitLab, Bitbucket, MongoDB, Redis, PostgreSQL, Apache Kafka, and AWS Kinesis. Evaluation-data exporters and configuration-change notifiers extend its operational workflow, while flag sets allow separate configurations, API keys, retrievers, exporters, and notifiers. Teams wanting self-hosted control and flexible backends should consider it; teams seeking a vendor-managed service or support beyond the Opensource plan should look to the Enterprise offering.
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GO Feature Flag pricing
All 2 GO Feature Flag plans and prices →
GO Feature Flag fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| SDK languages | JavaScript, TypeScript, React, Angular, Swift, Kotlin/Android, Go, Java, Kotlin, .NET, Python, Node.js, PHP, Ruby, Rust, NestJS |
| Targeting rules | Yes |
| Percentage rollouts | Yes |
| User segments | Yes |
| Environments | Not verified |
| Audit log | Not verified |
| Approval workflows | Not verified |
| Deployment | Self-hosted |
| Support | Community, Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 20 integrations: HTTP(S), File System, Kubernetes ConfigMap, AWS S3, MinIO, Google Cloud Storage … |
| Pricing | Free plan (source) |
| Website | gofeatureflag.org |
| Facts checked | 22 Sep 2026 |
GO Feature Flag integrations
GO Feature Flag lists 20 integrations on its own site.
- HTTP(S)
- File System
- Kubernetes ConfigMap
- AWS S3
- MinIO
- Google Cloud Storage
- Azure Blob Storage
- GitHub
- GitLab
- Bitbucket
- MongoDB
- Redis
- PostgreSQL
- Apache Kafka
- AWS Kinesis
- Google Cloud Pub/Sub
- Google Cloud BigQuery
- AWS SQS
- Webhook
- Log
Alternatives to GO Feature Flag
- FlagsmithA flexible flag platform for teams that need hosted or self-hosted deployment.9.4
- ConfigCatBroad feature flag coverage with a useful free tier and clear growth paths.9.2
- SplitA strong fit for teams that want feature flags and experimentation in one platform.9.0
See all GO Feature Flag alternatives →
Also Ranked In
GO Feature Flag is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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