You want to change flags without a redeploy.

The open-source, single-binary feature flag server for indie hackers and micro-SaaS. Self-hosted, lightweight, and built for speed.

More than env vars, less than a platform.

Too Little

Static configuration that requires a full application redeploy to change. Zero user targeting or safe rollout capabilities.

Just Right

Single Go binary with embedded SQLite. Provides instant UI toggles and powerful targeted rollouts with near-zero operational overhead.

Too Much

Expensive, complex platforms requiring dedicated teams to manage. Overkill for indie hackers and small, fast-moving teams.

power_settings_new

Instantly disable broken features in production without waiting for CI/CD pipelines to finish rolling back.

Coming Soon

percent

Gradually expose new functionality to a percentage of your traffic to monitor performance safely.

Coming Soon

group

Target features by specific user IDs, email domains, or custom JSON traits passed from your client.

dashboard

A snappy React + Vite frontend baked directly into the Go binary. No separate deployment needed.

terminal

Manage flags from your terminal or integrate seamlessly with our lightweight TypeScript SDK.

deployed_code

Embedded SQLite means zero external database dependencies. Just download the binary and run it.

No complicated setup. Pull the image, run the container, and start using flags immediately via our SDK.

# Start the server

docker run -p 8080:8080 safelaunch/server

# In your app

import { SafeLaunch } from '@safelaunch/sdk'

const client = new SafeLaunch('http://[your-hostname]:8080')

const flag = client.get('new-feature')