# growthbook/growthbook

Open Source Feature Flags, Experimentation, and Product Analytics

Repository: https://github.com/growthbook/growthbook
Canonical: https://ross.abutalabs.com/products/growthbook
Homepage: https://www.growthbook.io
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: abtesting, statistics, abtest, experimentation, split-testing, snowflake, bigquery, redshift, clickhouse, analytics, ab-testing, feature-flags, feature-flagging, remote-config, continuous-delivery, data-analysis, data-science, data-engineering, databricks, warehouse-native
Last push: 2026-08-26T23:44:48+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 1944, "days_push": 7, "days_rel": 14, "gap_med": 61, "n_releases_24m": 12}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8159, forks 818 (observed 2026-08-28T04:10:13.938935+00:00)

## What it is
GrowthBook is an open-source platform for feature flags, A/B testing experimentation, and product analytics, deployable via Docker or as a cloud service. It is warehouse-native, connecting to data sources like Snowflake, BigQuery, and Databricks, and offers SDKs for 24+ languages and frameworks.

## Use cases
- run A/B tests on my website with a stats engine
- manage feature flags with gradual rollouts and targeting
- self-host a feature flag platform with docker
- run experiments on data in my snowflake or bigquery warehouse
- add feature flags to a react app
- track product analytics and build dashboards
- do split testing without a paid SaaS tool
- integrate feature flag management into my IDE via MCP

## When to choose
- you want an open-source, self-hostable alternative to LaunchDarkly or Optimizely
- your experiment data lives in a data warehouse and you want warehouse-native analysis
- you need advanced statistics like CUPED, sequential testing, Bayesian, or bandits
- you need SDKs across many languages including React, Python, Android, and iOS
- you want feature flags, experimentation, and product analytics in one platform

## When to avoid
- you only need a tiny client-side toggle library with no management UI
- you want a fully managed SaaS with zero infrastructure and no cloud dependency
- your team has no data warehouse and you don't want to rely on their managed warehouse
- you need a permissively licensed dependency to embed in a commercial product (license is custom)

## Facets
- artifact type: service
- maturity: active
- function: feature-flags, analytics, data-visualization, webhook, api-framework, sdk, mcp
- domain: analytics, developer-tools, data-science, web-development, apis, self-hosted
- platform: self-hosted, cross-platform, cloud
- tags: feature-flagging, ab-testing, experimentation, a-b-testing, split-testing, remote-config, warehouse-native, product-analytics, statistics, cuped, bayesian, gradual-rollouts, self-hosted, rest-api, visual-editor, bandits, docker, web-server, nodejs, typescript

## Member repositories
- growthbook/growthbook (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:13.938935+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:29:45.313374+00:00, confidence not recorded.
  - readme: https://github.com/growthbook/growthbook (fetched 2026-08-28T04:10:13.938935+00:00, sha a1297aca88b5)
  - homepage: https://www.growthbook.io (fetched 2026-08-29T08:28:56.439959+00:00, sha bc252fe5d495)
  - site_page: https://docs.growthbook.io/ (fetched 2026-08-29T08:28:56.453625+00:00, sha e674d7d72bf6)
  - site_page: https://docs.growthbook.io (fetched 2026-08-29T08:28:56.456987+00:00, sha e674d7d72bf6)
  - site_page: https://docs.growthbook.io/lib/script-tag (fetched 2026-08-29T08:28:56.458859+00:00, sha c49af6d05959)
  - site_page: https://docs.growthbook.io/lib/js (fetched 2026-08-29T08:28:56.460897+00:00, sha c9b634deeed8)
  - site_page: https://docs.growthbook.io/lib/react (fetched 2026-08-29T08:28:56.463548+00:00, sha 05fe2211853a)
  - site_page: https://www.growthbook.io/platform/integrations (fetched 2026-08-29T08:28:56.449721+00:00, sha 85da1dda665c)
  - site_page: https://www.growthbook.io/pricing (fetched 2026-08-29T08:28:56.451640+00:00, sha 424e65e059e9)
  - site_page: https://www.growthbook.io/roles/engineering (fetched 2026-08-29T08:28:56.455100+00:00, sha 7ed57132de36)
- Data as of 2026-08-30T08:39:29.467469+00:00.