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Everything you need to know about the setup, deployment and customization of Unleash

How Total Wine and More  blended security and control with experimentation,  on its own terms.

How Pitch’s engineers got back their time for creativity.

Abstract image showing slide puzzle meaning flexibility of the platform

Every developer team is different, and the large out-of-box platforms usually doesn’t fit right into your needs. Unleash is made to be high flexible and adaptable. Unleash will adapt to you and your needs as opposed to the other way around.<br />


Adapt Unleash to your CI/CD process - and not your process to Unleash. Integrates into any system through extensive APIs

Every team has different requirements. Chose the service that works for you, whether it is SaaS, running in your private cloud or operated as self-hosted by you

Our SDKs is implemented to ensure consistent behavior across your user population.


Circle and square presented in an abstract way for illustrating resilient and transparent feature flag management platform

Our unique architecture prevents disruptions. The design of the Unleash SDKs that keep locall backups allows for multiple fall-back mechanisms to prevent issues in case of any network disruption. <br />


Circle and two squares illustrating adaptive capabilities of unleash feature management tool

Our API first design is truly unique and allows Unleash to fit into place. Ensure to adapt Unleash to your processes - and not your processes to Unleash<br />


Our unique architecture

Use Unleash with any language and any framework. There are 15 official client-side and server-side SDKs and 15+ community SDKs available. 

Logo JavaScript available as proxy SDK in Unleash

View documentation

Logo Rust available as Client SDK in Unleash

Logo Dark available as Client SDK in Unleash

Logo Svelte available as proxy SDK in Unleash

Hosted by us or operated by you: your choice. No complex setup or configuration required, with the simplicity developed over 10+ years.

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Aly Sidi

Unleash has allowed us to leverage feature toggles from traditional release toggles to use cases that we would have to build from scratch. By removing the pressure that comes with traditional software releases, we’ve been able to accelerate our business to launch new products and features more quickly.

Eivind Throndsen

Unleash provides full control when rolling out a new feature to our users. I can enable a new feature for a few percent of our users first and verify that it works as expected, independently from release cycles. This enables rapid yet safe product iteration.

Juul Arthur Rudihagen

Unleash has been really helpful when rolling out new features at Spleis. Unleash reduces risk and gives us full control in releasing new features. We have also utilised Unleash to do A-B testing, combined with other tracking software. The api and client libraries are easy to use and fast!

Ryan Fisch

Unleash-hosted has given our engineering and product teams greater control of their deployment automation processes, decreased our time-to-market and enabled a clear separation of moving code to production vs. providing features to our customers. Great product, great SaaS partner!

Christina Jin

With Unleash we are able to easily create feature toggles and implement them into our code. One of the strongest Unleash is how easily you can create your own custom strategy to rollout the feature. Plus, appreciate the fast response from Unleash support team.

How to build resilience by bootstrapping Unleash’s Java SDK with predefined values [2023]

Reduce risk with a feature flag service and Keptn

Unleash's unique architecture: SDK, API, UI

Unleash addon framework

Flexible platform

As the largest open-source feature flag platform, Unleash gives developers tools to be efficient and love their jobs, while enterprises get market-leading data governance, security, and compliance controls.

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Plans & pricing

Mark Quigley

"We flipped the most important flag we could when we went from our in-house system to Unleash. Right away we found that  it was scalable, highly performant, resilient out of the box.
And Unleash ended up being 1/3 the cost of our homegrown feature flag solution, while also improving the reliability and scalability of our platform."

Norbert Borecki

"Unleash gave us the flexibility to manage feature rollouts across multiple services and environments, allowing us to scale without fear of major rollbacks."

Wael Mashal

"In our complex case and architecture, Unleash has proven actually to be the perfect fit for us. And when we decided to use Unleash, we made the right decision. It's provided us with the necessary tools, flexibility, and compatibility to support our pursuit of cloud-native excellence."

Truls Jørgensen

"Before 2016, NAV used to take pride in 4 huge, coordinated, massive releases per year. As of today, this number is over 1400 times per week, which translates roughly to once every other minute.”

Jason Crow

"What appealed to us about Unleash was the central control via the Admin Console, as well as the security posture of running the entire infrastructure under our own architecture and standards”

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<div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Downtime risk</h4>Flaky features cause downtime. On average, application downtime costs organizations $400,000 per hour, and more than half of organizations face unexpected downtime every two months.</div></div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Reduced Innovation</h4>When developers are forced to use tools and processes they hate, like infrequent high-stakes releases based on complex branching strategies, innovation is reduced by 50%.</div></div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Home-grown solutions don’t scale</h4>Many organizations attempt to solve downtime risk and reduced innovation by building a feature flag solution in-house, but often, features and UX are lacking, the maintenance burden is high, and reliability is low. Under such circumstances, release velocity suffers, and the best talent starts to look elsewhere.</div></div></div>

Unleash gives developers tools to be efficient and love their jobs, while enterprises get market-leading data governance, security, and compliance controls.

<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Open-source. Play around as much as you’d like.<br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Built by devs for devs with intuitive DevEx.<br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Includes all feature flags capabilities you’d expect. And many you don’t.

<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> RBAC, audit, change requests. <br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> No data leaves your environment. <br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Supports Air-gapped and Fed Ramp requirements.

Explore features

Explore features like rollout strategies, instant rollback, and kill switches 

Explore features like feature flag automation, trunk-based development, and tech-debt management

Explore features like A/B/n testing, cross-session stickiness, and analytics integrations

Explore features like self-hosting or single-tenant private instances, SSO integration, RBAC and Audit logs.

Hosted, or self-hosted: it’s your call. It’s quick and easy to set up. Get started in 2 steps with the functionality you need to gain complete control over your software releases.

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Open Live Demo

Vibhu Srivastava

"With Unleash, we could safely manage feature releases in our monolith, knowing that we could toggle features off instantly if something went wrong, minimizing downtime and risk."

Misha Karpenko

"We really like your design philosophy. It gives us peace of mind, because the end user data doesn’t leave our application context."


Henning Støverud

"By deploying more frequently, the size of each deployment has been drastically reduced and new functionality can be tested early and more gradually thanks to Unleash and feature toggles."

Why the largest enterprises in the world choose Unleash

A Guide to Feature Flags

Trunk-Based Development with feature flags

Trunk-based development: process, examples, strategy, implementation