Open source focus

Open Source Alternatives to Krillswitch

14 open source Feature Flags options similar to Krillswitch, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Flagon8
Feature Flags
The hub for everything you run: projects, environments, and teams, with feature flags, config, secrets, and events built-in.
Open source
Liblab55
Developer ToolsAustin, United States$42.0M
SDK-as-a-service platform for API providers, offering code generation and SDK management to enhance developer experience.
Open source · Self-hostable
WireMock53
Enterprise$6.5M
Industry-standard API simulation and mocking platform for reliable software development and testing.
Open source · Self-hostable
vxtwitter.com31
Web DevelopmentSan Francisco, United States
The world's leading platform for software development and version control, enabling collaboration and code hosting for millions of developers.
Open source · Self-hostable
fixupx.com26
Web DevelopmentSan Francisco, United States
The world's leading software development platform for version control and collaboration.
Open source · Self-hostable
Selenium10
Open Source
An open-source framework for automating web browsers for testing and administration tasks.
Open source · Self-hostable
Pulumi66
Infrastructure as CodeSeattle, United States$228.5M
Modern infrastructure as code platform enabling developers to manage cloud resources using familiar programming languages.
Open source · Self-hostable
Gitpod63
Developer ToolsTübingen, Germany$28.0M
Cloud Development Environments for efficient and secure team software development.
Open source · Self-hostable
Logz.io63
EnterpriseTel Aviv, Israel$122.0M
Logz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.
Open source · Self-hostable
Codefresh62
EnterpriseBrisbane, Australia$42.0M
Octopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.
Open source · Self-hostable
Canonical61
Open SourceLondon, United Kingdom$348K
Canonical develops and supports Ubuntu, a leading open-source operating system for cloud, servers, and edge devices.
Open source · Self-hostable
Mirantis58
Cloud InfrastructureCampbell, United States$255.0M
Mirantis provides cloud-native infrastructure and AI platforms for enterprises to manage and operate complex environments.
Open source · Self-hostable
pgEdge, Inc.55
DatabaseSan Francisco, United States$24.0M
pgEdge offers distributed PostgreSQL that is optimised for the network edge in order to reduce data latency.
Open source · Self-hostable
Kestra49
Data OrchestrationParis, France$36.0M
An open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
FlagonThe hub for everything you run: projects, environments, and teams, with feature flags, config, secrets, and events built-in.	Feature Flags	Open source	—	—	8
LiblabSDK-as-a-service platform for API providers, offering code generation and SDK management to enhance developer experience.	Developer Tools	Open source · Self-hostable	Austin, United States	$42.0M	55
WireMockIndustry-standard API simulation and mocking platform for reliable software development and testing.	Enterprise	Open source · Self-hostable	—	$6.5M	53
vxtwitter.comThe world's leading platform for software development and version control, enabling collaboration and code hosting for millions of developers.	Web Development	Open source · Self-hostable	San Francisco, United States	—	31
fixupx.comThe world's leading software development platform for version control and collaboration.	Web Development	Open source · Self-hostable	San Francisco, United States	—	26
SeleniumAn open-source framework for automating web browsers for testing and administration tasks.	Open Source	Open source · Self-hostable	—	—	10
PulumiModern infrastructure as code platform enabling developers to manage cloud resources using familiar programming languages.	Infrastructure as Code	Open source · Self-hostable	Seattle, United States	$228.5M	66
GitpodCloud Development Environments for efficient and secure team software development.	Developer Tools	Open source · Self-hostable	Tübingen, Germany	$28.0M	63
Logz.ioLogz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	$122.0M	63
CodefreshOctopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.	Enterprise	Open source · Self-hostable	Brisbane, Australia	$42.0M	62
CanonicalCanonical develops and supports Ubuntu, a leading open-source operating system for cloud, servers, and edge devices.	Open Source	Open source · Self-hostable	London, United Kingdom	$348K	61
MirantisMirantis provides cloud-native infrastructure and AI platforms for enterprises to manage and operate complex environments.	Cloud Infrastructure	Open source · Self-hostable	Campbell, United States	$255.0M	58
pgEdge, Inc.pgEdge offers distributed PostgreSQL that is optimised for the network edge in order to reduce data latency.	Database	Open source · Self-hostable	San Francisco, United States	$24.0M	55
KestraAn open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.	Data Orchestration	Open source · Self-hostable	Paris, France	$36.0M	49