Unleash is an open-source feature management platform that enables teams to safely roll out features using flags, kill switches, and progressive delivery strategies, primarily for enterprise development teams.

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🚀 Overview

Unleash solves key challenges in software delivery like costly downtime (average $400k/hour), slowed innovation from infrequent high-stakes releases, and unreliable home-grown feature flag tools that increase maintenance and reduce velocity.

It provides intuitive feature flags, governance, and security to enable faster, safer releases—decoupling deployment from release for continuous delivery.

Built for developers who need great DevEx and enterprises requiring compliance (SOC2, ISO27001, FedRAMP), auditability, and scalability. Started in 2014 by Ivar Conradi Østhus as the leading open-source solution, now with 13k+ GitHub stars and used by Lloyds Banking Group, Wayfair, Prudential, and more.

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✨ Key Features

• Rollout strategies (gradual, canary, A/B testing), instant rollback, kill switches to reduce release risks and handle high-traffic events.
• Enterprise governance: RBAC, audit logs, change requests, SAML/SSO, air-gapped support.
• Adminless onboarding, 15+ official SDKs for any stack (Go, Java, etc.), experimentation tools.
• Optional: Impact metrics (beta), advanced analytics.

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🛠 Tech Stack

• Frontend: React, TypeScript
• Backend: Node.js, TypeScript
• Database: PostgreSQL
• Auth: Custom / SAML
• Hosting: Docker self-host, Unleash Cloud, or partners

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👥 Who Is This For?

This project is useful for:

• Developers who want to toggle features without redeploys
• Teams looking for scalable progressive delivery and A/B testing
• Enterprises building governance into AI/human code releases

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📸 Screenshots / Demo

• Live demo: https://app.unleash-hosted.com/demo/login
• GitHub: https://github.com/Unleash/unleash

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🔥 Project Status

• 🟢 Actively building

Last updated: 2026-03-24

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❓ FAQ

Is this project free?

Open Source (Free self-host), Pro (~$80/user/month), Enterprise ($75/seat/month). 14-day free trials for hosted plans. (Explain briefly.)

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Is the source code available?

Yes — https://github.com/Unleash/unleash

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Can I contribute?

Follow CONTRIBUTING.md, developer docs at https://docs.getunleash.io/contributing. Open issues/PRs on GitHub, join Reddit community.

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📬 Contact & Links

• Website: https://www.getunleash.io
• GitHub: https://github.com/Unleash/unleash
• Twitter/X: https://x.com/getunleash
• Email: Contact form on site or beta@getunleash.io for features

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