Open Source Alternatives to Rebellion Defence

Sponsors of OpenWALDO, a community-driven initiative for open-source AI training data, and provider of enterprise Linux, HPC, and AI infrastructure software.

A popular open-source Linux distribution.

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

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

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

Elementary Data provides a unified data control plane for the AI era, offering observability, quality, governance, and discovery for data and AI reliability.

An open-source technology provider offering an open control plane for AI agents.

An open-source platform enabling enterprises to securely connect sensitive data to AI agents.

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

Open source AI model visibility tracking and competitor benchmarking.

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

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

Open-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.

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

Seeing AI from the right angle. Free, open tools, resources, reports, and data that show what AI systems actually do.

A non-profit AI research lab focused on open science and developing advanced multimodal and voice AI models.

Open-source AI research lab training decentralized large language models and building infrastructure for accessible AI.

Developing advanced AI models with a focus on reducing hallucinations, including large language models, vision language models, and text-to-video models.

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

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

Developer tools for building modern web applications.

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

The Defcon badges feature a unique open-source chip that doubles as a security key.

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

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