Head-to-Head Comparison · Alternative to ConfigCat · 🛠️ dev tools
ConfigCat vs GrowthBook
Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment. Here is how GrowthBook ($0/mo open source) stacks up against ConfigCat ($25/mo) across cost, hosting, data privacy, and real-world trade-offs.
GrowthBook is a verified Open Source-licensed open-source replacement for ConfigCat. Switching from ConfigCat ($25/mo) saves $300/yr per solo seat, or $1,500/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed LaunchDarkly.
GrowthBook
$0.00/mo · Open Source
ConfigCat vs GrowthBook Specifications
facts verified 2026-11-07
| Dimension | ConfigCat (Paid) | GrowthBook (Replacement) |
|---|---|---|
| Monthly Price | $25 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $300 / yr | $0 / yr (Save $300) |
| 1-Year Cost (5 seats) | $1,500 / yr | $0 / yr (Save $1,500) |
| 1-Year Cost (10 seats) | $3,000 / yr | $0 / yr (Save $3,000) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 8.6k (active nov 2026) |
Deep Dive: Switching from ConfigCat to GrowthBook
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed LaunchDarkly.
How to deploy GrowthBook
Clone https://github.com/growthbook/growthbook or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork GrowthBook instead of vibe-coding a ConfigCat clone?
Instead of paying recurring SaaS fees for ConfigCat or rebuilding it from scratch, deploy one of the 7 battle-tested open-source alternatives like Unleash.
ConfigCat vs GrowthBook FAQ
Is GrowthBook a good free alternative to ConfigCat?+
Yes. GrowthBook is a verified open-source (Open Source) replacement for ConfigCat. Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.
What is the catch when switching from ConfigCat to GrowthBook?+
Requires self-hosting setup, updates, and server maintenance compared to managed LaunchDarkly.
How much do you save switching from ConfigCat to GrowthBook?+
ConfigCat costs $25/mo ($300/yr) per seat, whereas GrowthBook is $0/mo. Switching saves $300/yr for a solo user, $1,500/yr for a 5-person team, and $3,000/yr for a 10-person team.
How do I install or self-host GrowthBook instead of ConfigCat?+
Install: Clone https://github.com/growthbook/growthbook or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
