ZSvirt is Open Source: Enterprise-Grade Virtualization, Now Open to the Community

ZSvirt is now officially open source under the GPL 3.0 license. The full source code is available on GitHub, and ISO installation images and technical documentation are available on the community site.

KUALA LUMPUR / SHANGHAI, August 12, 2026 — ZSvirt, launched by infrastructure vendor ZStack, today officially announced its open-source release under the GPL 3.0 license. The complete source code, ISO installation images, and technical documentation are now available at:

Source code: https://github.com/zsvirt/zsvirt
Community site: https://zsvirt.io

Since Broadcom's acquisition of VMware and the licensing changes that followed, more organizations are re-evaluating their virtualization strategy around TCO, looking for greater flexibility, transparency, and control over how they run workloads. ZSvirt is going open source at this moment to give teams evaluating alternatives an open, proven option — one that doesn't require changing existing operational habits.

ZSvirt brings the enterprise-proven ZStack ZSphere virtualization engine to the open-source world. As a lightweight, scalable platform, it gives teams full control over their infrastructure — from homelabs to hyperscale production environments — without vendor lock-in. Unlike approaches that require adopting an entirely new operational model, ZSvirt keeps the familiar VM-centric workflows around clusters, hosts, virtual machines, storage, and networking, while letting users evaluate, deploy, and take part in the platform's evolution.

Core Capabilities

Large-scale virtualization: a single control plane manages 10,000+ hosts; a single VM supports up to 768 vCPUs.
Seamless VMware migration: 100% agentless migration. The built-in ZMigrate toolset runs entirely at the virtualization layer, with full-disk block copy and background incremental sync, cutting over in as little as 5 minutes.
Built-in security: native VM Secure Boot, vTPM 2.0, VM encryption, security-group microsegmentation, and immutable audit logs.
Open integration: 2,000+ production-ready RESTful/OpenAPI endpoints, a native Terraform Provider, and Go, Python, and Java SDKs.

Proven in Production

ZSvirt runs the same enterprise-grade engine as ZSphere, validated in more than 1,000 production environments — including VMware replacement projects — across finance, healthcare, education, manufacturing, transportation, and other industries. Today, we're opening that engine to the community under GPL 3.0, helping organizations migrate and upgrade their virtualization platforms without disrupting their business.

Building the Future of Open Virtualization Together

Over the next six to twelve months, the ZSvirt project will focus on accelerating platform maturity, expanding ecosystem compatibility, and improving operational efficiency across diverse infrastructure environments. The project roadmap, contribution guidelines, and governance documents will remain public, so users and contributors can follow where the platform is heading. Technical discussions happen on GitHub Discussions; bugs and documentation issues are tracked in GitHub Issues and handled directly by the engineering teams responsible for each module.

License and Governance

ZSvirt is released under GPL 3.0. This strong copyleft license allows anyone to freely use, modify, and redistribute the source code, while requiring derivative works to be released under GPL 3.0 as well. We'll detail the boundary between the community and commercial editions in a follow-up post.

This ensures that every improvement flows back to the community — and that ZSvirt remains free and open, permanently.