
Split.io
An enterprise feature delivery platform that provides feature flagging, experimentation, and data-driven deployment capabilities.
Best-in-class enterprise feature flagging with native experimentation — now embedded in Harness's full DevOps suite.
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Split.io (Harness FME) — enterprise feature flagging and experimentation platform.
Acquired by Harness in 2023, Split.io now operates as Harness Feature Management & Experimentation (FME) — though the split.io domain and brand persist. DB mislabels this as 'SEO' (it is a feature delivery and A/B testing DevOps tool) and marks it as paid-only, but a free Developer tier with 10 seats and 10 flags exists. Core differentiator: SDK-side flag evaluation means targeting logic fires locally, never exposing user data to Split's servers.
Split pioneered the 'flag + metric' model, connecting every release to measurable business outcomes. Its architecture is more private and lower-latency than cloud-dependent competitors, and the Harness acquisition adds full CI/CD pipeline context few rivals can match.
Full experimentation capabilities and enterprise governance require the Enterprise tier (custom, contact sales); small teams hit free limits quickly and Growth plan pricing is not self-serve transparent.
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Alternatives
LaunchDarkly for more mature enterprise governance controls and a larger flag-management ecosystem.
Flagsmith (open-source/self-host) or PostHog feature flags for smaller teams wanting cost transparency.
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