Top 12 Open-Source Alternatives to LaunchDarkly

The top open-source alternatives to LaunchDarkly are Flagsmith, Unleash, and Split.io. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Flagsmith Landing Page
1

Flagsmith

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.
Pricing:
- Open Source
- Freemium
- Free Trial
#Feature Flags #Developer Tools #Configuration Management 13 social mentions
Unleash Landing Page
2

Unleash

Open source Feature toggle/flag service. Helps developers decrease their time-to-market and to increase learning through experimentation.
Pricing:
- Open Source
- Freemium
- Free Trial
- $80.0 / Monthly (Pro, "5 users")
#Productivity #Software Engineering #Developer Tools 4 social mentions
Split.io Landing Page
3

Split.io

In a world where product development teams are pressured to do more with less, Split’s Feature Data Platform™ gives you the confidence to move fast without breaking things.
Pricing:
- Open Source
#Feature Flags #Developer Tools #Release Management 12 social mentions
Rollout Landing Page
4

Rollout

Fix or prevent critical bugs while your app is live.
Pricing:
- Open Source
#Developer Tools #Feature Flags #Release Management
Growth Book Landing Page
5

Growth Book

The Open Source A/B Testing Platform
Pricing:
- Open Source
#A/B Testing #Conversion Optimization #Web Analytics 1 social mentions
FlipperCloud.io Landing Page
6

FlipperCloud.io

Control Your Code. Instantly. Without configuring or deploying it.
Pricing:
- Open Source
- Paid
- Free Trial
- $20.0 / Monthly (per seat)
#Developer Tools #Release Management #Feature Flags
Kubernetes Landing Page
7

Kubernetes

Kubernetes is an open source orchestration system for Docker containers
Pricing:
- Open Source
#Developer Tools #DevOps Tools #Containers As A Service 284 social mentions
Next.js Landing Page
8

Next.js

A small framework for server-rendered universal JavaScript apps
Pricing:
- Open Source
#Developer Tools #Web Frameworks #JavaScript Framework 924 social mentions
Micronaut Framework Landing Page
9

Micronaut Framework

Build modular easily testable microservice & serverless apps
Pricing:
- Open Source
#Web Frameworks #Developer Tools #Runtime 36 social mentions
FeatureHub Landing Page
10

FeatureHub

Cloud native feature flags, A/B testing and remote configuration service
Pricing:
- Open Source
- Paid
- Free Trial
- $4.99 / Monthly (1 user)
#Developer Tools #A/B Testing #Feature Flags
Bugfender Landing Page
11

Bugfender

Cloud logging for your apps, not only crashes matter
Pricing:
- Open Source
#Developer Tools #Monitoring Tools #Log Management 1 social mentions
ANTLR Landing Page
12

ANTLR

ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for...
Pricing:
- Open Source
#Parser Generator #Developer Tools #Monitoring Tools 2 social mentions