6 Open Source Alternatives to Tggl

A list of 6 carefully selected open-source alternatives to Tggl.

Adrian
Created by
Adrian
Mar 9, 2025Updated8 min read

The open-source alternatives are ranked based on our custom ranking system and score. This system takes into account various factors to determine the best alternatives.

If you’re looking for alternative features or workflows, here is a prepared detailed list of Tggl open-source alternatives — each with its own distinctive strengths and key features.

#1
Unleash logo

Unleash

11,895
744

Unleash is an open-source feature management platform built specifically for large enterprises. It enables developers to control feature rollouts with precision while ensuring robust security and compliance. The platform is designed for scalability and high performance, reducing deployment risks and downtime.

Unleash screenshot

Key Features

  • Open-source with a vibrant community
  • Enterprise-grade security with RBAC, audit, and change requests
  • Centralized Admin Console for streamlined feature management
  • Scalable architecture designed for complex deployments
  • Flexibility for both hosted and self-hosted environments

Unleash delivers a comprehensive feature flag management solution that streamlines software releases and minimizes operational risks. With an intuitive Admin Console, developers can manage rollouts, instantly rollback features if necessary, and meet stringent security requirements. The platform supports air-gapped and Fed Ramp environments, ensuring that no data leaves your infrastructure while maintaining high levels of compliance and control.

#2
GrowthBook logo

GrowthBook

6,411
535

GrowthBook is an open source feature flagging and A/B testing platform built to streamline product experimentation and reduce engineering overhead. It integrates directly with your data warehouse and supports fast, lightweight SDKs to deliver reliable feature launches and in-depth experiment analysis.

GrowthBook screenshot

Key Features

  • Open source with daily GitHub releases for high developer experience
  • Seamless integration with major SQL data sources and event trackers
  • Lightweight SDKs ensuring fast load times and optimal performance
  • Robust feature flagging combined with customizable A/B testing
  • Supports both Bayesian and Frequentist statistical methodologies
  • No-code visual editor for effortless website updates
  • Self-hosting option for enhanced control, security, and compliance

GrowthBook empowers teams to safely launch features and run comprehensive experiments with minimal disruption. The platform offers warehouse-native integrations with SQL databases and popular analytics tools, ensuring you work with data where it lives. Enjoy agile feature flagging, robust A/B testing supported by advanced statistical engines, and a no-code visual editor for rapid website updates. With daily open source releases and self-hosting options, it meets modern compliance standards including SOC II and GDPR.

#3
Flagsmith logo

Flagsmith

5,395
426

Flagsmith is an open source feature flag and remote config service that enables developers to toggle and manage features across web, mobile, and server-side applications. It provides a powerful solution for segmented rollouts, A/B testing, and controlled deployments, ensuring safe and strategic feature releases.

Flagsmith screenshot

Key Features

  • Open source feature flag management
  • Remote configuration for live changes
  • Granular user segmentation for targeted deployments
  • Multivariate testing and A/B/n experiments
  • Supports multiple programming languages and frameworks
  • Flexible deployment options: SaaS, private cloud, and on-premises

Flagsmith streamlines feature management by allowing you to wrap code sections with toggles and adjust configurations remotely without deployments. It offers granular segmentation rules for staging rollouts and multivariate tests, integrating with numerous languages and frameworks. With flexible deployment options including SaaS, private cloud, and on-premises solutions, Flagsmith caters to diverse operational requirements.

#4
Abby logo

Abby

151
21

Abby is an open-source feature flags, remote config, and A/B testing tool built specifically for developers. It offers fully type-safe SDKs for React and Next.js along with integrated debugging tools to streamline feature deployment.

Abby screenshot

Key Features

  • Fully type-safe SDKs for React, Next.js, and more
  • Flexible remote configuration and environment-specific testing
  • Optimized support for SSR and SSG for fast user experiences
  • Built-in devtools and first-party CLI for contextual debugging
  • Reliable fallbacks to reduce downtime risks
  • Open-source with options for self-hosting

Abby simplifies feature deployment complexity by providing type-safe feature flags, flexible remote configuration, and integrated A/B testing capabilities. Designed for modern tech stacks, it supports SSR and SSG out-of-the-box, offers multiple environments for safe testing, and includes robust devtools for on-the-fly debugging. Its open-source nature ensures transparency and the option for self-hosting, making it a reliable choice for engineering teams at startups and enterprises alike.

#5
FeatBit logo

FeatBit

1,498
110

FeatBit is an enterprise-grade, open source feature flag platform designed for self-hosting. It enables developers to manage feature rollouts safely while mitigating risks and fostering business growth.

FeatBit screenshot

Key Features

  • Enterprise-grade feature flag management built with .NET
  • Self-hosted or hosted deployment options
  • Risk mitigation with progressive delivery and production testing
  • Real-time updates and support for multiple SDKs (C#, JavaScript, Python, Java, Go)
  • Robust integrations with open APIs, webhooks, and SSO
  • Scalable architecture handling high volumes of connections

FeatBit offers a comprehensive solution to manage feature flags using .NET, allowing developers to deploy and test new features with precision. It supports real-time updates, offline mode, and extensive integrations such as Open APIs, webhooks, and single sign-on. Designed for scalability, it efficiently handles high traffic, making it ideal for both small and large enterprises seeking to innovate faster and ship code safely.

Featurevisor is an open source solution for managing feature flags, experiments, and remote configurations via a GitOps workflow. It enables developers to control feature releases and perform A/B tests with version control integration, reducing deployment risks and streamlining operations.

Featurevisor screenshot

Key Features

  • Declarative feature management using GitOps
  • Supports feature flags, multivariate experiments, and remote configuration
  • Built-in segmentation and gradual rollout capabilities
  • Integrations with JavaScript, Node.js, Swift, and more
  • Cloud-native design compatible with any CI/CD and CDN

Featurevisor allows you to manage your features declaratively from your Git repository. It supports dynamic flag toggling, precise segmentation, gradual rollouts, and A/B testing. With integrations for popular languages, frameworks, and CI/CD tools, it delivers a cloud-native architecture that adapts to both production and staging environments.

Price comparison of Tggl open-source alternatives

ToolTier 1Tier 2Tier 3Details
GrowthBook logo
GrowthBook
-
Seat-based Pricing
--Learn more
Abby logo
Abby
$0
Free
$12
Starter
$89
Startup
Learn more
FeatBit logo
FeatBit
$0
Free
--Learn more

* Pricing shown is based on publicly available information and may not reflect current rates. Visit each tool's website for detailed pricing information and additional tiers.

About Tggl

Nicolas is a brand that offers Tggl.io, a powerful feature flag and release management platform designed for smooth and risk-free product development. With Tggl.io, you can effectively test your products in production, merge code faster, remotely control your app, and optimize business metrics. Tggl.io allows you to scale your product risk-free by using feature flags. With feature flags, you can safely test new features in production by enabling them for a few trusted users, and instantly disable them if needed. This enables you to test the real thing without impacting other users and eliminates surprises when going to production. As confidence increases, you can gradually release the feature to a larger percentage of your users until it reaches 100%. Tggl.io is built for teams that need to move fast. Its carefully crafted interface empowers your entire team, including your product team, to make decisions on the spot without developers' intervention. No more lengthy deployment cycles just to push small changes. You can manage all your platforms in one place with Tggl.io. It makes it easy to manage flags across mobile, web, and backend applications. You can organize your flags into projects and development environments for neat and efficient management. Moreover, Tggl.io provides powerful and flexible user segmentation capabilities. You can target handpicked users, specific countries, different plans, or implement any custom business logic you may have. Additionally, you can conduct A/B tests by randomly showing different versions of a feature to your users and analyzing their performance. For developers, Tggl.io offers resilience, with the app never crashing due to feature flags and always falling back to a safe state in case of errors or disruptions. The response time is lightning fast, delivering flags evaluation in less than 14 milliseconds. The platform is also light on the client, minimizing HTTP requests and payload. Tggl.io offers pricing plans to suit different needs, including a 30-day free trial with no credit card required. The plans include standard, pro, and enterprise options, each tailored to specific requirements. With Tggl.io's open-source SDKs, simple API, server-side and API flags evaluation, and webhooks, you can get started in just three minutes. Trust Nicolas and Tggl.io to bring agility, efficiency, and confidence to your product development journey.
This comparison data was compiled with AI assistance.
Tggl logo

Tggl

Tggl lets developers ship code faster and safer with feature flags and makes product teams more efficient with release management

Founded

2022

Employees

2

Location

Paris, France

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