Unleash

The Open-Source Feature Flag Service.

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Overview

Unleash is an open-source feature flag platform designed for developers. It provides a flexible and privacy-friendly way to manage feature toggles, allowing for gradual rollouts, A/B testing, and kill switches. As it's open-source, it can be self-hosted, giving companies complete control over their data and infrastructure. It also offers a managed SaaS product.

✨ Key Features

  • Feature Toggles
  • Gradual Rollouts
  • Activation Strategies (e.g., user IDs, IPs)
  • A/B Testing Support
  • Open Source & Self-hostable
  • Client SDKs for major languages
  • Audit Logs

🎯 Key Differentiators

  • Open-source and developer-first approach
  • High degree of flexibility and extensibility
  • Strong focus on privacy and self-hosting capabilities
  • Designed for enterprise-grade security

Unique Value: Provides a powerful, flexible, and privacy-focused open-source platform for feature management, giving teams full ownership and control.

🎯 Use Cases (5)

Developer-centric feature flagging Self-hosting for data privacy and control Gradual rollouts based on flexible strategies Decoupling deployment from release in a private environment Canary releases

✅ Best For

  • Open-source feature management
  • Enterprise self-hosted deployments
  • Privacy-conscious feature toggling

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Teams without the technical resources to manage a self-hosted solution (if not using the cloud version).
  • Marketers looking for a visual editor for A/B testing.

🏆 Alternatives

Flagsmith ConfigCat LaunchDarkly

Offers a more customizable and transparent solution compared to closed-source SaaS products, which is ideal for teams with specific security or integration needs.

💻 Platforms

Java Node.js Go Python Ruby .NET Rust Web Server-side API

✅ Offline Mode Available

🔌 Integrations

Jira Slack Microsoft Teams Datadog Prometheus GitHub API

🛟 Support Options

  • ✓ Email Support
  • ✓ Live Chat
  • ✓ Dedicated Support (Enterprise tier)

🔒 Compliance & Security

✓ SOC 2 ✓ GDPR ✓ SSO ✓ SOC 2 Type II

💰 Pricing

$80.00/mo
Free Tier Available

✓ 14-day free trial

Free tier: Open Source version is free. Pro plan has a 14-day trial.

📊 Market Info

Customers: 500+

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