Software Alternatives, Accelerators & Startups

Barrier VS Synergy

Compare Barrier VS Synergy and see what are their differences

Barrier logo Barrier

Barrier is a cross-platform software for sharing your mouse and keyboard between multiple computers...

Synergy logo Synergy

Cross-platform software for sharing your mouse and keyboard between multiple computers
  • Barrier Landing page
    Landing page //
    2022-11-07
  • Synergy Landing page
    Landing page //
    2023-09-05

Synergy is a software application developed by Symless. It is used for sharing a keyboard and mouse between multiple computers, and is useful in situations where several PCs are used together, with a monitor connected to each, but are to be controlled by one user. The user needs only one keyboard and mouse on the desk — similar to a KVM switch without the video.

Partly open source and partly closed source, the open source components are released under the terms of the GNU General Public License, which is free software. The first version of Synergy was created on May 13, 2001, by Chris Schoeneman and worked with the X Window System only. Synergy now supports Windows, macOS, Linux, and other Unix-like operating systems.

Once the program is installed, users can move the mouse "off" the side of their desktop on one computer, and the mouse pointer will appear on the desktop of another computer. Key presses will be delivered to whichever computer the mouse-pointer is located in. This makes it possible to control several machines as easily as if they were a single multi-monitor computer. The clipboard and even screensavers can be synchronized.

The program is implemented as a server which defines which screen-edges lead to which machines, and one or more clients, which connect to the server to offer the use of their desktops. The keyboard and mouse are connected to the server machine.

Barrier features and specs

  • Cross-Platform Support
    Barrier works on various operating systems including Windows, macOS, Linux, and FreeBSD, making it versatile for users with multiple devices.
  • Open Source
    Being open source, users can review and modify the code, contributing to transparency and security while fostering a community-driven project.
  • Cost-Free
    Barrier is free to use, unlike some alternatives that require purchasing a license, making it accessible to a wider audience.
  • Unified Control
    Allows seamless control of multiple computers using a single keyboard and mouse, enhancing productivity and convenience.
  • Customizability
    Offers various customization options such as hotkeys, screen edges, and clipboard sharing, adapting to user-specific workflows.

Possible disadvantages of Barrier

  • Setup Complexity
    Initial setup can be complex for non-technical users, involving network configurations and firewall adjustments.
  • Compatibility Issues
    Occasional compatibility problems with certain versions of operating systems or hardware, potentially requiring troubleshooting.
  • Lag and Latency
    Users may experience slight lag or latency, especially over wireless networks, which can affect the fluidity of control.
  • Limited Technical Support
    As a community-driven project, it lacks the dedicated support of commercial alternatives, relying mostly on community forums for help.
  • Security Concerns
    Network-based connectivity might expose systems to security risks if not properly configured, necessitating careful network management.

Synergy features and specs

  • Cross-Platform Compatibility
    Synergy supports multiple operating systems including Windows, macOS, and Linux, allowing you to share a single mouse and keyboard across different machines seamlessly.
  • Efficiency
    It enhances productivity by providing smoother workflow transitions between multiple computers without the need for additional hardware.
  • Customization
    Synergy offers a range of customizable options for configuring hotkeys, screen layouts, and behaviors to suit individual user preferences.
  • Encryption
    The software supports SSL encryption, ensuring that data transferred between machines remains secure.
  • Clipboard Sharing
    You can easily copy and paste text and files between different computers, streamlining multi-computer management tasks.

Possible disadvantages of Synergy

  • Cost
    Synergy is a paid application, which might not be ideal for users looking for a free solution.
  • Initial Setup Complexity
    The initial setup can be complicated, especially for non-technical users, involving configuration of network settings and screen layouts.
  • Occasional Lag
    Some users have reported experiencing occasional lag or connectivity issues, particularly over Wi-Fi connections.
  • Security Concerns
    Despite SSL encryption, there are potential security risks involved in transferring data over a network, especially in untrusted environments.
  • Compatibility Issues
    There might be occasional compatibility issues with certain applications or specific versions of an operating system.

Barrier videos

Reviews In a Flash: Barrier

More videos:

  • Review - 🌊KraveBeauty Great Barrier Relief • Everything you need to know!
  • Review - Kravebeauty's Great Barrier Relief Serum: REVIEW

Synergy videos

Review - Synergy by Symless - Multi Machine Network Control Software

More videos:

  • Review - Symless Synergy Review - Mac (Keyboard & Mouse Sharing)

Category Popularity

0-100% (relative to Barrier and Synergy)
Remote PC Access
52 52%
48% 48
Mouse Tools
45 45%
55% 55
Multi Monitor
48 48%
52% 52
Remote Desktop
54 54%
46% 46

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Barrier and Synergy

Barrier Reviews

Top spacedesk Alternatives & Similar Software (2020)
For Barrier to work, all that is needed is a network connection. You can also copy content from one clipboard to another between computers. Like all other software that let you work on multiple computers, Barrier too helps you control all of them with a single mouse or keyboard. Barrier is free to use and it’s an open-source software. As in the other software that we’ve...

Synergy Reviews

Top spacedesk Alternatives & Similar Software (2020)
Synergy is yet another software that lets you work on separate computers with the same input devices. It helps you save all the clutter caused by the cables of a traditional KVM. What’s more, it works even when the computers are working on separate operating systems. This feature makes it stand out from Spacedesk. For Synergy to function, you’ll need the systems to run on...

Social recommendations and mentions

Barrier might be a bit more popular than Synergy. We know about 348 links to it since March 2021 and only 283 links to Synergy. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Barrier mentions (348)

  • So I made a WebRTC powered VNC client in Vue/Rust 🦀
    I used to and still do use and recommend Barrier for sharing a mouse and clipboard and keypresses across OS's. It works for Mac, Windows, and Linux. They have a fork input-leap... It doesn't work, and there is a paid on from the same original developers called Synergy that works well too. - Source: dev.to / 5 months ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    Barrier is a Cross-Plattform, open source Synergy fork that works quite well without any additional HW too [0] [0] https://github.com/debauchee/barrier. - Source: Hacker News / about 1 year ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    Synergy is open core, these portions are licensed as GPL: https://github.com/symless/synergy-core/#License-1-ov-file. - Source: Hacker News / about 1 year ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    Prior to Synergy going to closed source, it was forked into Barrier[0], which then was forked into input-leap[1]. Both open source. [0] https://github.com/debauchee/barrier. - Source: Hacker News / about 1 year ago
  • Wayland vs. X – Overview
    Libei looks useful. But IDK why libei is necessary to run Barrier with Wayland? For client systems, couldn't there just be a virtual /dev/inputXYZ that Barrier forwards events through And for host systems, it looks like xev only logs input events when the window is focused. Is xeyes still broken on Wayland, and how to fix it so that it would work with Barrier? With Barrier, when the mouse cursor reaches a screen... - Source: Hacker News / about 1 year ago
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Synergy mentions (283)

  • Solaar is a Linux manager for many Logitech keyboards, mice, and other devices
    Just use Synergy, the OG "soft KVM": https://symless.com/synergy. - Source: Hacker News / 21 days ago
  • Notepad++ is 21 years old
    I continue to use Notepad++ despite having tried every other editor and IDE under the sun. This, of course, drives every person completely insane when I explain that my "IDE" is: - Notepad++ for editing, pretty much stock, no plugins - command line for git and grep (Console2 or Git Bash) - File Explorer alongside Everything [0] for navigating files - Beyond Compare [1] for visual diff/merge - WinSCP/PuTTY for... - Source: Hacker News / 2 months ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    I use a software called Synergy. https://symless.com/synergy I have one keyboard and mouse connected to one "host" machine, and two machines connected as clients. Sometimes if the host machine bogs a bit (like running a build or something) then the clients will have some latency but I've used this setup for gaming and work for two years and it's been pretty good. My only complaint (about my personal setup, not the... - Source: Hacker News / about 1 year ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    I’ve been using a software solution for this for over a decade. It’s called Synergy (https://symless.com/synergy) and it is fast - switches instantly over wifi and also works across Windows/Mac/Linux. - Source: Hacker News / about 1 year ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    Synergy works well for this purely in software. Unfortunately it's not free or open source, but it's relatively inexpensive. https://symless.com/synergy. - Source: Hacker News / about 1 year ago
View more

What are some alternatives?

When comparing Barrier and Synergy, you can also consider the following products

Input Director - Control multiple windows systems with one keyboard/mouse. Share a keyboard and mouse across multiple windows system.

DisplayFusion - DisplayFusion will make your multi-monitor life much easier.

ShareMouse - With its easy setup and high level of versatility, ShareMouse is a great tool if you're looking to use a single mouse and keyboard across multiple computers.

Ultramon - UltraMon is a piece of software built to help with the management of multiple screens on the same computer system. Without software like this, taking full advantage of an expanded desktop space can be difficult.

Dual Monitor Tools - Download Dual Monitor Tools for free. Tools for Windows users with dual or multiple monitors. Tools for Windows users with dual or .

Multiplicity - Multiplicity enables a user to control multiple computers with one keyboard and mouse.