ProductsSylve
FreeBSD offers incredible stability, but managing its virtualization and storage primitives usually requires cobbling together disjointed CLI tools or adopting bulky, tightly coupled operating system appliances.
Sylve provides a unified web interface built strictly for FreeBSD. It unifies VMs, containers, networking, and storage into a single control plane without taking over the base OS or draining system resources.
Sylve is engineered from the ground up to minimize host overhead, making it ideal for everything from low-power edge gateways and home labs to dense multi-tenant cloud-native enterprise hypervisors.
Instead of running constant background polling loops that spike CPU usage, Sylve hooks directly into native FreeBSD subsystems and utilities. If an administrator chooses to stop the Sylve daemon, the host returns to a completely stock FreeBSD state with zero leftover background clutter.
Sylve is a single, self-contained binary (~55MB). It does not require heavy external databases (like PostgreSQL or MySQL), local web servers (like Nginx or Apache), or language runtimes (like Python or Node.js) to be installed on the host. Its dependencies are all statically linked and bundled within the binary, thereby reducing the possibility of version conflicts or security vulnerabilities such as supply chain attacks from third-party software.
Written entirely in Go with a compiled SvelteKit frontend, the entire application runtime executes comfortably in under 400MB of RAM.
Manage hardware-virtualized VMs and lightweight Jails from the same dashboard. This includes full support for Cloud-Init provisioning, WebAssembly-based lightning-fast serial consoles, and Linux Jails via the Linuxulator.
Gain complete visibility into pools, datasets, and disk health (S.M.A.R.T.). Administrators can handle snapshots, retention policies, and automated VM/Jail backups seamlessly via its Zelta integration.
Configure physical interfaces, virtual switches, DHCP scopes, and network objects without editing config files by hand.
Multi-node setups do not require heavy external orchestration stacks. Sylve uses an embedded RAFT consensus model, which is the same model used by Kubernetes, to distribute state and manage ZFS replication smoothly across a cluster.
Sylve is integrating more features with every release. The immediate roadmap focuses on expanding workload flexibility while maintaining strict performance standards:
Upcoming integration with Podman allows users to natively run standard Docker/OCI containers alongside VMs and Jails.
A streamlined UI toggle for home-lab users who want one-click deployments without navigating advanced network and storage configurations.
Sylve is also sponsored by the FreeBSD Foundation, ensuring a strong commitment to keeping the project open source and community-driven.
Sylve is an independent, 100% open-source (BSD-2-Clause) project and is entirely free to use.
For organizations running critical infrastructure, we offer enterprise implementation and support for Sylve deployments. These provide direct SLA-backed assistance, custom feature development, and architecture consulting to help scale FreeBSD infrastructure efficiently in production environments.
To install Sylve on an existing FreeBSD 15+ machine, run:
pkg install sylve
