Abby Alternatives

Abby is described as 'Open-Source Feature Flags, Remote Config & A/B Tests for Developers ?🧪' and is an website. There are more than 10 alternatives to Abby, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, JavaScript and Java apps. The best Abby alternative is Replane, which is both free and Open Source. Other great sites and apps similar to Abby are LaunchDarkly, DevCycle, Flagsmith and ConfigCat.

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Abby alternatives page was last updated Jan 2, 2026

Replane
7 likes
Replane is an open-source, self-hosted platform for feature flags and dynamic configuration. It lets teams change feature toggles, rate limits, and app settings in real-time without redeploying code—updates propagate to connected services in under a second via Server-Sent Events.
33 Replane alternatives
Cost / License
Freemium
Open Source (MIT)
Platforms
Online
Self-Hosted
Software as a Service (SaaS)
Docker
+1
Is Replane a good alternative to Abby?
Replane is the most popular Web-based, SaaS & Self-Hosted alternative to Abby.
Replane is the most popular Open Source & free alternative to Abby.
Replane is Freemium and Open SourceAbby is Free Personal and Open Source
LaunchDarkly
5 likes
LaunchDarkly empowers all teams to deliver and control software - Deploy features whenever you want, release to users when you’re ready.
37 LaunchDarkly alternatives
Cost / License
Subscription
Proprietary
Origin
United States
Platforms
Online
Is LaunchDarkly a good alternative to Abby?
LaunchDarkly is the most popular commercial alternative to Abby.
LaunchDarkly is Paid and ProprietaryAbby is Free Personal and Open Source
DevCycle
11 likes
DevCycle is a Feature Management Platform that helps development teams deploy code more efficiently while reducing release complexity with feature flags that connect directly to your current workflows. Leverage industry-leading functionality, like Edge Flags, so there is never a...
Cost / License
Freemium (Subscription)
Proprietary
Application type
A/B Testing Tool
Origin
Canada
Platforms
Online
Software as a Service (SaaS)
+6
Is DevCycle a good alternative to Abby?
Flagsmith
13 likes
Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features.

We're Open Source.
Cost / License
Free
Open Source (BSD-3-Clause)
Origin
United Kingdom
Platforms
Online
Self-Hosted
React
JavaScript
React Native
Java
Is Flagsmith a good alternative to Abby?
ConfigCat
24 likes
ConfigCat.com lets you launch new features and change your software configuration remotely without actually (re)deploying code. ConfigCat SDKs enable easy integration with any web, mobile or backend applications.
31 ConfigCat alternatives
Cost / License
Free
Proprietary
Origin
Hungary
EU
Platforms
Mac
Windows
Online
Android
iPhone
iPad
Python
React
JavaScript
AngularJS
PHP
Go (Programming Language)
Java
Node.JS
+1
Is ConfigCat a good alternative to Abby?
ConfigCat is the most popular Windows, Android, Mac, iPhone & iPad alternative to Abby.
ConfigCat is Free and ProprietaryAbby is Free Personal and Open Source
Unleash
7 likes
Open-source feature flags platform. Manage your feature roll-out like a pro. Target specific customers, users, regions. Run fast, reduce risk.
27 Unleash alternatives
Cost / License
Freemium (Subscription)
Open Source (Apache-2.0)
Origin
Australia
Platforms
Self-Hosted
Software as a Service (SaaS)
+1
Is Unleash a good alternative to Abby?
Optimizely
12 likes
Optimize your conversion rate on websites and mobile apps in minutes by running an AB Test, Split Test or Multivariate Testing with Optimizely!
Cost / License
Paid
Proprietary
Application types
A/B Testing Tool
Web Analytics Service
Origin
United States
Platforms
Online
Is Optimizely a good alternative to Abby?
Split
8 likes
Split’s feature experimentation platform helps businesses to make smarter product decisions by giving teams the ability to perform controlled rollout via feature flags and analyze features in production.
Cost / License
Subscription
Proprietary
Platforms
Online
Android SDK
Ruby
C#
Python
.NET Framework
Apple Swift
JavaScript
Django
PHP
Go (Programming Language)
C++
Ruby on Rails
Java
Node.JS
Objective-C
Is Split a good alternative to Abby?
GrowthBook
4 likes
Open Source Feature Flagging and A/B Testing.
Cost / License
Freemium (Subscription)
Open Source
Application type
A/B Testing Tool
Platforms
Self-Hosted
Software as a Service (SaaS)
Is GrowthBook a good alternative to Abby?
Tggl.io
3 likes
At Tggl, we provide a feature flag service for agile teams to control the release process and manage feature flags across multiple platforms. Our interface allows your entire team to change what features are active on your app at any given time, without the need for lengthy...
Cost / License
Subscription
Proprietary
Application type
A/B Testing Tool
Platforms
Online
+2
Is Tggl.io a good alternative to Abby?
Flagship
2 likes
Feature Flag as a Service - Separate code deployments from feature releases to speed up development cycles, mitigate risks and release safely.
Cost / License
Freemium (Subscription)
Proprietary
Platforms
Online
Android
iPhone
Software as a Service (SaaS)
+1
Is Flagship a good alternative to Abby?
Switchover Feature Flag Management
3 likes
Switchover is a Software As A Service Solution (SaaS) that companies in every industry can use to accelerate their software development processes. Our clearly arranged flag management feature allows you to switch your functions on and off at any time.
Cost / License
Free Personal
Proprietary
Origin
Germany
EU
Platforms
Software as a Service (SaaS)
Is this a good alternative to Abby?