Open source API development ecosystem - fast, lightweight, and offline-capable
Flagsmith
BSD-3-ClauseFlagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.
Recommended VPS & Hardware Sizing
Estimated Hosting: $4 - $6/mo (e.g. Hetzner CX22 or DigitalOcean)Flagsmith vs LaunchDarkly Comparison Matrix
| Evaluation Criteria | Flagsmith (Open Source) | LaunchDarkly (Proprietary) |
|---|---|---|
| Uptime Independence | Zero reliance on external vendor uptime | LaunchDarkly cloud outages can block app booting |
Financial Impact: Migrating from LaunchDarkly to Self-Hosted Flagsmith
* Excludes enterprise SSO add-ons & usage overages
* Commodity Hetzner / DigitalOcean compute instance
Compare Flagsmith Head-to-Head
Core Capabilities & Features
Self-Host Flagsmith with Docker Compose
Tweak configuration ports, secrets, and volumes live. Download or copy your ready-to-run container file:
1-Click Docker Compose Generator
Generate production-ready container definitions with customizable ports and volumes.
Open-source feature flags and remote configuration service
version: '3.8'
services:
flagsmith:
image: flagsmith/flagsmith:latest
restart: unless-stopped
ports:
- "${PORT:-8000}:8000"
environment:
- DJANGO_ALLOWED_HOSTS=*
- DATABASE_URL=postgres://flagsmith:${DB_PASSWORD:-flagsmith_pass}@db:5432/flagsmith
depends_on:
- db
db:
image: postgres:15-alpine
restart: unless-stopped
environment:
- POSTGRES_USER=flagsmith
- POSTGRES_PASSWORD=${DB_PASSWORD:-flagsmith_pass}
- POSTGRES_DB=flagsmith
volumes:
- flagsmith_pgdata:/var/lib/postgresql/data
volumes:
flagsmith_pgdata:Frequently Asked Questions: Self-Hosting Flagsmith
How do I self-host Flagsmith using Docker Compose?
You can deploy Flagsmith (Flagsmith/flagsmith) on any Linux server by copying the docker-compose.yml template on this page, configuring your desired host port and persistent volume directory, and running 'docker compose up -d'.
How does Flagsmith compare to LaunchDarkly?
Flagsmith is an open-source, self-hosted alternative to LaunchDarkly built with Python, Django, PostgreSQL. Unlike LaunchDarkly ($12 / seat / month + MAU overage charges), Flagsmith has zero per-user licensing fees and keeps 100% of your data on your own infrastructure.
What are the minimum VPS RAM and CPU requirements for Flagsmith?
For production self-hosting (Easy difficulty tier), we recommend at least 2 GB RAM (minimum 1 GB), 1 vCPU, and 10 GB SSD storage, which typically costs $4 - $6/mo (e.g. Hetzner CX22 or DigitalOcean).
Is Flagsmith free for commercial business use under the BSD-3-Clause license?
Yes. Distributed under the BSD-3-Clause license, Flagsmith can be self-hosted internally by businesses and engineering teams of any size without per-seat royalties.
Embed Official Flagsmith Badge in GitHub README
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[](https://ossmatrix.com/project/flagsmith)<a href="https://ossmatrix.com/project/flagsmith" target="_blank" rel="noopener noreferrer"><img src="https://ossmatrix.com/api/badge/flagsmith" alt="Flagsmith on OSSMatrix" /></a>Compare Flagsmith with Other Self-Hosted Alternatives
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