Flagsmith vs GrowthBook(2026)
Flagsmith is better for teams that need open source (self-host free). GrowthBook is the stronger choice if open source. Flagsmith is open-source (from $45/month (cloud)) and GrowthBook is freemium (from $0 (self-hosted free)).
Full feature breakdown, pricing details, and pros & cons below.
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Flagsmith
Flagsmith is an open source feature flag and remote configuration service with targeting, environments, and A/B testing.
Starting at $45/month (cloud)
Visit FlagsmithGrowthBook
GrowthBook is an open-source platform for feature flags, A/B testing, and experimentation.
Starting at $0 (self-hosted free)
Visit GrowthBookHow Do Flagsmith and GrowthBook Compare on Features?
| Feature | Flagsmith | GrowthBook |
|---|---|---|
| Pricing model | open-source | freemium |
| Starting price | $45/month (cloud) | $0 (self-hosted free) |
| Feature flags | ✓ | ✓ |
| Remote config | ✓ | — |
| User targeting | ✓ | — |
| A/B testing | ✓ | ✓ |
| Multi-environment | ✓ | — |
| SDKs for all platforms | ✓ | — |
| Statistical analysis | — | ✓ |
| SDKs for all languages | — | ✓ |
| Self-hostable | — | ✓ |
| Visual editor | — | ✓ |
Flagsmith Pros and Cons vs GrowthBook
Flagsmith
GrowthBook
Should You Use Flagsmith or GrowthBook?
Choose Flagsmith if…
- •Open source (self-host free)
- •Remote config built-in
- •Good free tier
Choose GrowthBook if…
- •Open source
- •Strong statistics engine
- •Self-hostable for free