Sysadmin GitHub Repositories (2026) · Open Source Tools

🕵️‍♂️ All-in-one OSINT tool for analysing any website

Monitors your RAM and reports any "quite terrible" unused capacity directly to the CEO of OpenAI.

Fast, open-source SSH client and server manager for macOS, Windows and Linux. Desktop GUI and terminal TUI with a live metrics dashboard, tabbed terminal, SFTP file manager, port forwarding, one-click SSH keys and snippets. Built in Rust.

The ultimate datacenter management solution for Proxmox VE and XCP-NG. Unified multi-cluster control, intelligent load balancing, and seamless cross-cluster VM migrations — all in one beautiful interface.

rack layout designer

A lightning-fast, modern, local-first SSH/SFTP/Serial client. Real-time E2EE sync, Team vaults, live sharing, plugins and more. Open-source Termius alternative for Windows, Linux, macOS & Android. Built with Rust/Tauri.

Free, open-source CMTrace replacement for Windows log files: ConfigMgr/SCCM, Intune IME, and Autopilot ESP diagnostics, DSRegCmd triage, .evtx viewing, real-time tailing, and Windows error-code lookup. Windows, macOS, Linux.

htop for your ports. Inspect processes, Docker & systemd, detect port drift, audit Compose, and manage it all from TUI, Web or Cockpit.

Agentless Windows workflow orchestration. Self-hosted, open source, alternative to System Center Orchestrator with SCOrch workflow import.

Network Doctor is a cross-platform network troubleshooting TUI that turns interface, DNS, TCP, TLS, HTTP, proxy, and path-MTU checks into one plain-English diagnosis.

A bootable that connects to your tailnet

All-in-one terminal workspace for desktops and servers: editor with LSP, file manager with SFTP/FTP, terminal, git, database viewer and a coding agent in one zero-config static Rust binary.

Centralized network visibility and continuous asset discovery. Monitor devices, detect change, and stay aware across distributed networks.

OliveTin gives safe and simple access to predefined shell commands from a web interface.

Monitoring plugins for Icinga, Nagios & friends. Python 3.9+, all platforms. Smart defaults, auto-discovery, consistent cross-platform metrics, minimal dependencies.

An AI that administers Linux through typed, approval-gated, Ed25519-audited actions. The model selects the action; the daemon builds the command.

A flexible commandline tool for template rendering. Supports lots of local and remote datasources.

Open-source RDP, SSH, SFTP and port forwarding client for macOS

A modern, cross-platform SSH client and remote server management tool. Tabbed terminals, SFTP file browser, port forwarding, system monitoring, AI assistant, encrypted vault, Ansible & OpenTofu automation, serial console. Free and open-source PuTTY/MobaXterm/Termius alternative for Windows, macOS, Linux & Android. Built with Rust + Tauri.

Open-source SSH and remote desktop client for macOS, Windows, and Linux. Split terminals, SFTP/FTP/FTPS transfers, RDP/VNC, and server monitoring, built with Rust and Tauri.