6 Useful Free and Open Source Wake-on-LAN Tools

Wake-on-LAN lets you power on a sleeping or powered-off computer remotely by sending a special network “magic packet” to its network adapter. It is useful for home PCs, media servers, NAS boxes, lab machines, and office workstations that do not need to run all day but should still be available on demand.

Free and open source Wake-on-LAN tools range from simple command-line utilities to web dashboards, mobile-friendly apps, and admin-oriented network tools. The right choice depends on your operating system, whether you need local-only or remote wake support, how many machines you manage, and how comfortable you are with router, BIOS/UEFI, and network adapter settings.

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What Wake-on-LAN Does and What You Need Before Using It

Wake-on-LAN is a network feature that powers on, or wakes, a computer by sending a specially formatted network packet to its network interface. That packet is commonly called a magic packet. It contains the target machine’s MAC address repeated in a specific pattern, which the sleeping or powered-off system’s network adapter can recognize. When everything is configured correctly, you can start a desktop, server, NAS, lab machine, or media PC without pressing the physical power button.

Wake-on-LAN is most often used on local wired networks, but it can also be used across VPNs or carefully configured routed networks. Typical use cases include waking a home file server before connecting to it, starting a workstation for remote desktop access, powering up lab hardware only when needed, or letting an administrator bring machines online for maintenance. It is especially useful when paired with remote access tools, backup jobs, monitoring systems, or home automation dashboards.

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Basic requirements before using Wake-on-LAN

• Hardware support: The motherboard, firmware, and network adapter must support Wake-on-LAN. Most modern desktops and many servers do, but some laptops, USB Ethernet adapters, and Wi-Fi cards have limited support.
• BIOS or UEFI setting: Wake-on-LAN usually needs to be enabled in firmware. Look for settings such as Wake on LAN, Power On by PCI-E, Resume by LAN, or Wake on PME.
• Operating system configuration: The network adapter must be allowed to wake the computer. On Windows, this is managed in Device Manager power settings. On Linux, tools such as ethtool are commonly used to check and enable wake modes.
• Wired Ethernet connection: Wake-on-LAN is most reliable over Ethernet. Wake over Wi-Fi exists on some systems, but it is less universal and depends heavily on the wireless adapter, driver, and power state.
• Target MAC address: You need the MAC address of the network interface that will receive the magic packet. An IP address alone is not enough for classic Wake-on-LAN.
• Standby power: The computer must still provide power to the network adapter while asleep or shut down. If the power supply is switched off or the device is unplugged, Wake-on-LAN cannot work.

The target machine’s power state also matters. Many systems can wake from sleep or suspend, while waking from a full shutdown depends on firmware, operating system shutdown behavior, and power management settings. Fast startup features can interfere on some Windows systems because the machine may enter a hybrid state rather than a traditional shutdown. On Linux, the wake mode shown by ethtool should include g, which indicates support for waking from a magic packet.

Network layout is another practical consideration. On the same LAN, a Wake-on-LAN tool can usually send the packet to the local broadcast address, such as 192.168.1.255, or directly to a known address while the ARP entry is still available. Across subnets, the packet may be blocked unless routers, firewalls, directed broadcasts, VPN routes, or relay services are configured to pass it. For most home and lab setups, the simplest and safest approach is to run the Wake-on-LAN tool from a device already connected to the same local network, such as a laptop, Raspberry Pi, router, or always-on server.

Key Features to Look For in a Wake-on-LAN Tool

A Wake-on-LAN tool has a simple job: send a correctly formed magic packet to the right network so a sleeping or powered-off machine can start. The best tool for you depends on how often you use WoL, how many devices you manage, and whether you need a graphical app, a command-line utility, or automation support. For occasional home use, a small desktop or mobile app may be enough. For a lab, help desk, or server environment, scriptability, saved host lists, and remote network support matter much more.

Start by checking platform support. Some WoL tools are built for Linux and Unix-like systems, while others run on Windows, macOS, Android, or in a browser-based interface. If you manage mixed devices, a cross-platform option is useful because you can keep the same workflow across your laptop, workstation, and admin machine. In server environments, a lightweight command-line tool is often preferable because it can be installed on a router, NAS, Raspberry Pi, jump box, or management VM.

• Interface type: Look for a tool that matches how you work. A GUI is convenient for manually waking a desktop or media server, while a CLI is better for SSH sessions, shell scripts, cron jobs, and remote administration.
• Saved devices and groups: If you wake more than one machine, the ability to store MAC addresses, hostnames, IP addresses, broadcast addresses, and friendly names saves time and reduces mistakes.
• Broadcast and subnet options: Good tools let you choose the destination address and port, such as a local broadcast address or directed broadcast for another subnet. This is useful when waking machines across VLANs or routed networks.
• Secure remote access workflow: WoL itself is not authentication-based, so the surrounding workflow matters. A suitable tool should work well over a VPN, SSH tunnel, router-hosted script, or self-hosted web panel rather than requiring unsafe port forwarding.
• Automation support: For labs and admin use, check whether the tool can be called from scripts, systemd timers, monitoring platforms, CI jobs, or home automation systems.
• Packet customization: Advanced users may need to specify UDP ports, repeat packet counts, delays, interface selection, or SecureOn passwords where supported by the target hardware.

Reliability features are also worth considering. Some networks drop broadcast packets, some wireless adapters do not support wake from all sleep states, and some systems only wake from suspend rather than a full shutdown. A helpful WoL tool cannot fix firmware or router limitations, but it can make testing easier by showing the exact MAC address, target address, port, and network interface being used. Tools that support repeated packets or mulle destination addresses can also improve success rates on networks where the first packet is occasionally missed.

Finally, consider maintainability. Free and open source WoL utilities are often small, but an active project, clear documentation, package availability, and simple configuration files make them easier to trust and deploy. If you only need to wake one PC from a phone, choose the simplest app that stores your target machine cleanly. If you manage several systems, favor a tool with profiles, CLI support, and predictable behavior across subnets. The right choice is less about the fanciest interface and more about fitting your network layout and daily workflow.

6 Free and Open Source Wake-on-LAN Tools Worth Trying

The tools below all send Wake-on-LAN magic packets, but they suit different workflows. Some are tiny command-line utilities for scripts and SSH sessions, while others provide a graphical interface or fit better into a smart home or always-on server setup.

1. etherwake

etherwake is a small Linux command-line utility commonly found in distribution repositories. It sends a magic packet directly from a specified network interface, which makes it useful on routers, servers, and lightweight Linux boxes. It is a good fit when you want a minimal tool for shell scripts, cron jobs, SSH-triggered wakeups, or embedded Linux systems where a full desktop interface is unnecessary.

2. wakeonlan

wakeonlan is a simple Perl-based command-line tool available on many Unix-like systems, including Linux, BSD, and macOS through package managers. It can send packets to a MAC address and broadcast address, making it straightforward for home users and lab admins who need a portable command that behaves consistently across machines. It is especially handy if you maintain scripts that may run on different operating systems.

3. GNU Wget-style wol utility

GNU wol is a dedicated Wake-on-LAN command-line program from the GNU project. It supports sending magic packets over UDP and can read host definitions from a configuration file, which is useful when you manage mulle systems by name rather than repeatedly typing MAC addresses. It is a strong choice for administrators who prefer a structured CLI tool for several desktops, lab nodes, or test machines.

4. gWakeOnLan

gWakeOnLan is a GTK-based graphical Wake-on-LAN application for Linux desktops. Instead of remembering MAC addresses or writing commands, you can maintain a list of machines and wake them from a simple interface. It is well suited to desktop Linux users who occasionally power on a NAS, workstation, media PC, or lab machine and prefer a point-and-click tool over terminal commands.

5. AquilaWOL

AquilaWOL is an open source Windows-focused Wake-on-LAN application with a graphical interface. It can store mulle computers, send wake packets, and help monitor whether machines are reachable. This makes it a practical option for Windows users who want a free desktop utility for waking home PCs, office workstations, or machines in a small lab without setting up scripts or a server dashboard.

6. Home Assistant Wake-on-LAN integration

Home Assistant is an open source automation platform, and its Wake-on-LAN integration lets you wake computers from dashboards, automations, schedules, buttons, or voice-assistant routines. It runs on platforms such as Linux, Raspberry Pi, containers, virtual machines, and Home Assistant OS. It is a good fit when you already have, or want, an always-on controller that can wake devices as part of broader automations, such as starting a gaming PC before launching a remote desktop session.

• Best for Linux scripts: etherwake, wakeonlan, or GNU wol.
• Best for Linux desktop users: gWakeOnLan.
• Best for Windows users: AquilaWOL.
• Best for smart home or scheduled wakeups: Home Assistant.

Comparison of Platform Support, Interfaces, and Best Use Cases

The six tools differ less in the Wake-on-LAN packet they send and more in how they fit into a workflow. Some are tiny command-line utilities designed for scripts, while others provide a graphical interface or a web-accessible control panel. The right choice depends on whether you are waking one desktop at home, managing several lab machines, or integrating wake commands into automation.

For terminal-focused users, wakeonlan, etherwake, and wol are usually the most direct options. They accept a MAC address, send a magic packet, and exit. That makes them easy to place inside a shell alias, systemd timer, backup script, or remote SSH command. etherwake is especially useful on Linux machines with more than one network adapter because it can target a specific interface, which helps on routers, firewalls, and multi-NIC lab hosts.

For desktop and household use, a graphical tool such as gWakeOnLAN is often easier to maintain. Instead of remembering MAC addresses and broadcast addresses, you can save named machines such as “Gaming PC,” “NAS,” or “Office Workstation” and wake them from a list. This is a better fit for occasional use, shared family computers, or Linux users who want a lightweight local app without building a larger automation system.

For automation, two categories stand out. Python-based Wake-on-LAN tools are a good match when the wake action is only one step in a larger script, such as checking whether a host responds to ping, waking it, waiting for SSH, then starting a backup. Home Assistant is stronger when wake actions should appear in a dashboard, mobile app, or smart home routine. For example, you can create a button that wakes a media server before movie night or an automation that starts a workstation when you enter your home office.

In practice, many users keep more than one tool available. A Linux admin might use wol in scripts, etherwake on a router, and Home Assistant for convenient mobile access. A home user may only need gWakeOnLAN or a single wakeonlan command saved in a launcher. The best option is the one that matches where you already work: terminal, desktop, browser, mobile dashboard, or automation platform.

Common Setup Issues and Troubleshooting Tips

Wake-on-LAN is simple once it works, but setup problems are common because the feature depends on several layers: firmware, operating system power settings, the network adapter, the local network, and sometimes the router. If a tool sends a magic packet and the target machine does nothing, the issue is usually not the Wake-on-LAN application itself. Start by checking that the target computer supports Wake-on-LAN and that the feature is enabled in the BIOS or UEFI. Look for settings such as Wake on LAN, Power On By PCI-E, Resume by LAN, or Wake from S5.

Operating system settings are the next common source of trouble. On Windows, open the network adapter properties in Device Manager and check the Power Management and Advanced tabs. Options such as Allow this device to wake the computer, Wake on Magic Packet, and Shutdown Wake-On-Lan may need to be enabled. On Linux, use tools such as ethtool to confirm that wake mode includes g, which indicates magic packet support. Some distributions reset this after reboot, so a systemd service, NetworkManager dispatcher script, or persistent network configuration may be needed.

Frequent Wake-on-LAN problems

• The computer wakes from sleep but not from shutdown: Some systems only support Wake-on-LAN from sleep, hibernate, or soft-off states if the firmware and adapter both support it. Check BIOS/UEFI settings and disable “fast startup” on Windows, since hybrid shutdown can interfere with adapter power state.
• The target device is on Wi-Fi: Standard Wake-on-LAN is designed for wired Ethernet. Some laptops support Wake on Wireless LAN, but it is less consistent and depends heavily on hardware, drivers, and access point behavior.
• The MAC address is wrong: The magic packet targets the network adapter’s MAC address, not the computer name or IP address. Use the wired Ethernet MAC address, especially on systems with both Wi-Fi and Ethernet.
• The packet is sent to the wrong broadcast address: For a typical home LAN, this may be something like 192.168.1.255 or the subnet’s directed broadcast address. If the sender and target are on different VLANs or subnets, routing rules may block the packet.
• The switch or router drops the packet: Some networks block broadcasts, directed broadcasts, or UDP forwarding. Managed switches, VLANs, guest Wi-Fi networks, and firewall rules can all prevent delivery.

When troubleshooting, test from the same local network first. Connect the target computer by Ethernet, shut it down or put it to sleep, then send a magic packet from another device on the same subnet. Use the target’s Ethernet MAC address and try common UDP ports such as 7 or 9. If the machine wakes locally, the basic configuration is working and any remaining issue is likely related to routing, VPN access, firewall behavior, or remote access setup.

For waking devices over the internet, avoid exposing Wake-on-LAN forwarding casually. A safer approach is to connect to the home or office network through a VPN, then send the packet as if you were local. If port forwarding is used, bind it carefully, restrict source addresses where possible, and understand that many routers do not forward broadcast packets reliably. In admin and lab environments, it is often better to run a small Wake-on-LAN web tool, SSH-accessible utility, or automation server inside the network so wake requests originate from a trusted local host.

Finally, confirm that power is actually available to the network adapter after shutdown. Many Ethernet ports keep a link light active when Wake-on-LAN is ready; if the link light turns off completely, the adapter may not be armed, the machine may be in a mechanical-off state, or power-saving firmware settings may be disabling standby power. Update network drivers and firmware if behavior is inconsistent, and document the working settings once found so they can be repeated across similar machines.

How to Choose the Best Wake-on-LAN Tool for Your Needs

The best Wake-on-LAN tool depends less on raw features and more on where you need to send the magic packet from, how often you use it, and whether you are waking one machine or many. A single desktop at home, a rack of lab servers, and a small office fleet all call for different workflows. Before choosing, list the devices you need to wake, their MAC addresses, whether they are on the same subnet, and who needs access to the wake function.

For home users and simple desktop wake-ups

If you only need to wake a PC, NAS, or media server from another device on the same local network, choose a lightweight graphical or mobile-friendly option. A simple GUI tool is easier to use than a script when you only send packets occasionally, especially if other household members may need to use it. Look for saved host profiles, broadcast address configuration, and a clear button for sending the packet. For this scenario, a desktop utility such as WakeMeOnLan or a small open source mobile app is usually a better fit than a full automation setup.

For labs, homelabs, and repeatable workflows

In a lab or homelab, command-line support often matters more than a polished interface. Tools such as wakeonlan, etherwake, or other scriptable utilities are useful because they can be added to shell scripts, cron jobs, SSH workflows, and documentation. This makes it easy to wake a hypervisor before starting remote work, power on a test machine before deployment, or bring up several systems in a known order. If your lab spans VLANs or routed subnets, pick a tool that lets you specify the broadcast address and UDP port instead of assuming the local subnet.

For administrators and teams

For admin use, focus on repeatability, inventory, and access control. A tool that can store mulle hosts, import or export lists, or integrate into an existing management workflow will save time compared with manually typing MAC addresses. Web-based tools can be convenient for teams, but they should be placed behind proper authentication and network restrictions. If Wake-on-LAN is part of patching, backup, or maintenance routines, prefer a command-line tool or service that can be automated and logged.

• Choose a GUI tool when convenience and visibility are more valuable than automation.
• Choose a command-line tool when you want scripting, remote shell usage, or scheduled wake-ups.
• Choose a web-based tool when several users need controlled access from a browser.
• Choose a mobile tool when you want to wake a home PC or server before connecting remotely.

Platform support should also guide your choice. Windows users may prefer a native utility with saved device entries, while Linux users often benefit from package-manager availability and simple terminal commands. macOS users can use Unix-style command-line tools or cross-platform apps, but should confirm compatibility with their current system version. If you manage mixed environments, favor tools with plain configuration files, documented command syntax, or container-friendly deployment options.

Finally, match the tool to your network reality. On a flat home LAN, almost any Wake-on-LAN sender can work once BIOS, operating system, and network adapter settings are correct. Across subnets, VPNs, or remote sites, you may need directed broadcasts, a relay host, router support, or an always-on device inside the target network to send the packet locally. A simple tool that fits your network design will be more reliable than a feature-rich tool that requires workarounds every time you use it.

Frequently Asked Questions

Does Wake-on-LAN work over Wi-Fi?

Wake-on-LAN is most reliable over wired Ethernet because many Wi-Fi adapters power down fully when the computer sleeps or shuts off. Some laptops and wireless cards support waking from sleep over Wi-Fi, often called Wake on Wireless LAN, but it depends on the hardware, driver, and BIOS or UEFI settings. If you need dependable remote power-on, use Ethernet whenever possible.

Can I wake a computer from outside my home network?

Yes, but it requires extra network setup because Wake-on-LAN packets are usually broadcast only inside the local network. Common options include using a VPN into your home network, running a Wake-on-LAN tool on a router or always-on device, or carefully configuring port forwarding and broadcast rules if your router supports them. A VPN or local relay device is usually safer and more reliable than exposing Wake-on-LAN traffic directly to the internet.

What information do I need to use a Wake-on-LAN tool?

At minimum, you need the target computer’s MAC address and a network path that can deliver the magic packet to that machine. Many tools also ask for an IP address, subnet broadcast address, port number, or saved host name to make repeated wake-ups easier. For remote use, you may also need router settings, VPN access, or a device inside the network that can send the packet.

Which open source Wake-on-LAN tool is best for a home user?

For occasional home use, a simple desktop or mobile-friendly tool that saves devices by name is usually the best fit. If you already run a Linux machine, NAS, Raspberry Pi, or home server, a command-line tool can be faster and easier to automate. Choose a GUI tool if you prefer clicking a saved device, and choose a CLI tool if you want scripts, shortcuts, or scheduled wake-ups.

What should I check if Wake-on-LAN is not working?

First, enable Wake-on-LAN in BIOS or UEFI and in the operating system’s network adapter power settings. Confirm the computer is connected by Ethernet, the MAC address is correct, and the motherboard or network card still has standby power after shutdown. If waking across subnets or from the internet, check router broadcast behavior, firewall rules, VPN access, and whether the target machine’s ARP entry expires after it has been off for a while.

Bottom Line

Free and open source Wake-on-LAN tools make it easy to power on PCs, servers, and lab machines remotely, as long as your hardware, BIOS/UEFI, network adapter, and router or switch are configured correctly. The best choice depends on how you work: a simple desktop sender for occasional home use, a command-line utility for scripts and labs, or a web-based tool for managing mulle systems.

Start by confirming that Wake-on-LAN works on your local network, then pick the tool that matches your platform and workflow. Once it is reliable locally, you can add safer remote access methods such as VPN, firewall rules, or admin dashboards to wake machines only when you actually need them.

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