Open Source Alternatives to Harness

Octopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.

Snyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.

Open-core company building tools for modern backend engineers to ship faster and better.

Enterprise agentic AI orchestration

A global non-profit foundation dedicated to improving software security through open community collaboration.

An open-source framework for automating web browsers for testing and administration tasks.

A popular open-source Linux distribution.

Distributed SQL database for cloud-native applications, offering high availability and horizontal scalability.

Modern infrastructure as code platform enabling developers to manage cloud resources using familiar programming languages.

Logz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.

Cloud Development Environments for efficient and secure team software development.

Secures the software supply chain with verifiable builds and open-source security tooling.

A cloud database company providing a unified platform for transactional, analytical, and AI workloads.

Open-source Postgres platform for agent scale with copy-on-write branching.

A developer-friendly testing framework for the modern web.

Creator of InfluxDB, an open-source time series database for managing and analyzing high-volume, high-speed data.

Open-source backend-as-a-service platform for building scalable applications.

Mirantis provides cloud-native infrastructure and AI platforms for enterprises to manage and operate complex environments.

Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.

ARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.

Open-source project for instant distributed tracing and metrics using eBPF and OpenTelemetry.

Open-source data integration platform for security and infrastructure teams.

Industry-standard API simulation and mocking platform for reliable software development and testing.

Developer tools for building modern web applications.

API gateway and management platform for microservices and cloud-native applications.

Platform providing managed open source software with security, maintenance, and licensing assurances for enterprises.

An open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.

An open-source platform for building and running AI coding agents that automate software development tasks.

A managed, private, and production-grade environment for OpenClaw, offering access to over 500 AI models and essential tools.

A nonprofit endowment aiming to permanently solve the funding problem for open-source software maintainers.

Cloudify provides an open-source cloud orchestration and automation platform for managing complex cloud environments.

Open-source Kubernetes-native testing framework for CI/CD.

Odigos provides an open-source software solution for developers to enable distributed tracing for their applications using OpenTelemetry and eBPF, accelerating production issue resolution.

An open-source, cross-platform JavaScript runtime environment.

ComputeSDK provides an open-source platform for benchmarking cloud infrastructure, including AI gateways, sandboxes, storage, and browsers, and offers a unified SDK for running code in remote sandboxes.

Visualize, edit, and collaborate on database schemas instantly with a powerful DB diagram editor.

Linuxed provides an AI-powered platform for Linux system administration, automation, and infrastructure management.

The Cloud Native Computing Foundation (CNCF) is an open-source software foundation that aims to make cloud-native computing universal and sustainable.

A highly configurable and efficient tiling window manager for X11.

An open-source, cloud-native in-memory database written in Go, offering a RESP2-compatible alternative to Redis.

A non-profit organization stewarding open source software projects, communities, and collaborative industry ecosystems.

A free, open-source, self-hosted universal artifact repository manager.

Container-native virtualization for Kubernetes, enabling VMs and containers to run side-by-side.

Open-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.

A free, cross-platform, open-source developer platform for building many types of applications.

An open-source Node.js tool for automated web testing, simplifying end-to-end test creation and execution across browsers.

A UNIX shell written entirely in Ruby, offering deep integration with Ruby code.