Best Feature Management Software in the UK

Unleash is an open-source feature management software, built with large enterprises in mind. It's private, secure, scalable, and ready for the most complex setups out-of-the-box. Move from all-or-nothing releases to safe and frequent deployments Instead of perfecting a merge and fixing bugs when a set of features go live, you can release individual changes to your users, then immediately roll them back if something goes wrong. Scale your software and infrastructure at your own pace Reduce the complexity of feature flag management and tracking through a simple, user-friendly dashboard. Keep your user data to yourself. Full stop. Unleash offers private instances as part of its SaaS package. With assets like its proxy and Edge offerings, SaaS Unleash user data remains entirely with the customer. Significantly cut costs and reduce the drain on resources Reduce a significant amount of administrative costs, technical debt and helps you focus on the feature flags' benefits.

Flagsmith is a fully supported open source Feature Flag, Remote Config, and A/B testing service. Use our hosted API, deploy to your own private cloud, or run on-premise. Flagsmith makes it easy to create and manage features flags across web, mobile, and server side applications. Just wrap a section of code with a flag, and then use Flagsmith to toggle that feature on or off for different environments, users or user segments. Feature flags - Release features with confidence through phased rollouts. Remote config - Easily toggle individual features on and off, and make changes without deploying new code. A/B and Multivariate Testing - Use segments to run A/B and multivariate tests on new features. With segments, you can also introduce beta programs to get early user feedback. Organization Management - Organizations, projects, and roles for team members help keep your deployment organized. Integrations - Easily enhance Flagsmith with your favourite tools.

Harness is an AI-native software delivery platform that helps engineering teams achieve excellence by automating and streamlining the entire software delivery lifecycle. It enables continuous integration, continuous delivery, and GitOps for multi-cloud, multi-region deployments with increased speed and reliability. Harness simplifies infrastructure as code, database DevOps, and artifact management to improve collaboration and reduce errors. The platform offers AI-powered testing, incident response, chaos engineering, and feature management to enhance quality and resilience. Harness also provides cloud cost management, security testing orchestration, and developer insights to optimize performance and governance. Trusted by leading enterprises, Harness accelerates innovation while reducing manual effort and risk.