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Best Feature Flag Software in 2026

23 feature flag software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

23ranked
20free plans on this page
$19/molowest paid tier
2 Oct 2026last checked
#PlatformScoreWhyFromFree planPaid fromSDK languages
1Flagsmith8.9
RecognisedAPIDocumented
$40/moYes—JavaScript, React, Next.js, Android/Kotlin, iOS/Swift, Flutter, Python, Java, .NET, Node.js, Ruby, PHP, Go, Rust, ElixirView
2ConfigCat8.8
RecognisedAPIDocumented
$110/moYes—JavaScript, Angular, React, Node.js, Deno, Bun, Cloudflare Worker, .NET, Java, Go, PHP, Python, Android Java, iOS Swift, Dart, Flutter, Kotlin Multiplatform, Ruby, Elixir, C++, Rust, Unreal EngineView
3GrowthBook8.6
RecognisedAPIDocumented
$40/moYes40 /user/mo—View
4Statsig8.5
RecognisedAPIDocumented
$150/moYes——View
5DevCycle8.4
RecognisedAPIDocumented
$500/moYes——View
6Featureflow8.3
RecognisedAPIDocumented
$99/moYes—Java, Node.js, .NET, Ruby, Go, JavaScript/TypeScript, React, React Native, iOS, Android, PythonView
7feat8.0
RecognisedAPIDocumented
$19/moYes—JavaScript, Go, Python, Ruby, Cloudflare WorkersView
8Flipt7.8
RecognisedAPIDocumented
$200/moYes—Go, Python, JavaScript, C#, Swift, Kotlin, DartView
9LaunchDarkly Experimentation7.8
RecognisedAPIDocumented
$108.33/moYes——View
10Bucketeer7.6
RecognisedAPIDocumented
FreeYes—Android, iOS, Flutter, JavaScript, React, React Native, Go, Node.js, OpenFeatureView
11Harness Feature Management & Experimentation7.2
RecognisedAPIDocumented
FreeYes—JavaScript, Flutter, Browser, Redux, Node.js, Python, Java, Go, .NET, Ruby, PHP, ElixirView
12Vercel6.9
RecognisedAPIDocumented
$20/moYes20 /user/mo—View
13FeatBit6.8
RecognisedAPIDocumented
FreeYes—JavaScript/TypeScript, React, React Native, Node.js, .NET, Java, Python, Ruby, Go, Rust, OpenFeature providersView
14TrustyGorilla6.4
RecognisedAPIDocumented
FreeYes—JavaScript, TypeScript, Python, Java, Go, Kotlin, .NET, PHP, Ruby, SwiftView
15Rollgate6.3
RecognisedAPIDocumented
FreeYes—React, Vue, Angular, Svelte, Browser, Node.js, Go, Python, Java, .NET, React Native, FlutterView
16Tggl5.9
RecognisedAPIDocumented
—No—Angular, .NET, Express.js, Java, JavaScript, Kotlin, NestJS, Next.js, Node.js, PHP, Python, React Native, React, Ruby on Rails, Ruby, Swift, TypeScript, VueView
17GO Feature Flag5.8
RecognisedAPIDocumented
FreeYes—JavaScript, TypeScript, React, Angular, Swift, Kotlin/Android, Go, Java, Kotlin, .NET, Python, Node.js, PHP, Ruby, Rust, NestJSView
18Featurevisor5.7
RecognisedAPIDocumented
FreeYes—JavaScript, Node.js, Browser, React, React Native, Go, Python, PHP, Ruby, Java, Swift, Next.jsView
19Zenmanage5.7
RecognisedAPIDocumented
FreeYes—JavaScript/TypeScript, PHP, Laravel, Python, Go, .NETView
20Featureflip5.4
RecognisedAPIDocumented
FreeYes——View
21Togglely5.4
RecognisedAPIDocumented
FreeYes—JavaScript, TypeScript, React, Svelte, Vue.jsView
22FeatureHub5.0
RecognisedAPIDocumented
—No4.99 /user/moJava, JavaScript, C#, Dart, Go, Python, Ruby, SwiftView
23FeatureProbe4.9
RecognisedAPIDocumented
———Java, Rust, Go, Python, Node.js, JavaScript, Android, iOS, Mini Program, React, FlutterView

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Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.

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Questions about this list

Which feature flag software is ranked first on Inferse?

Flagsmith is ranked #1 of 23 with a score of 8.9. ConfigCat is second and GrowthBook third.

How many of these have a free plan?

20 of the 23 on this page publish a free plan on their own pricing pages.

Which is the cheapest paid option?

On this page, feat has the lowest first paid tier we found: $19/mo.

How is this list ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.

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