Software Alternatives, Accelerators & Startups

Synergy VS Node.js

Compare Synergy VS Node.js and see what are their differences

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Synergy logo Synergy

Cross-platform software for sharing your mouse and keyboard between multiple computers

Node.js logo Node.js

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
  • 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 โ€” 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.

  • Node.js Landing page
    Landing page //
    2023-04-18

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.

Node.js features and specs

  • Asynchronous and Event-Driven
    Node.js uses an asynchronous, non-blocking, and event-driven I/O model, making it efficient and scalable for handling multiple simultaneous connections.
  • JavaScript Everywhere
    Developers can use JavaScript for both client-side and server-side programming, providing a unified language environment and better synergy between front-end and back-end development.
  • Large Community and NPM
    Node.js has a vibrant community and a rich ecosystem with the Node Package Manager (NPM), which offers thousands of open-source libraries and tools that can be integrated easily into projects.
  • High Performance
    Built on the V8 JavaScript engine from Google, Node.js translates JavaScript directly into native machine code, which increases performance and speed.
  • Scalability
    Designed with microservices and scalability in mind, Node.js enables easy horizontal scaling across multiple servers.
  • JSON Support
    Node.js seamlessly handles JSON, which is a common format for API responses, making it an excellent choice for building RESTful APIs and data-intensive real-time applications.

Possible disadvantages of Node.js

  • Callback Hell
    The reliance on callbacks to manage asynchronous operations can lead to deeply nested and difficult-to-read code, commonly referred to as 'Callback Hell'.
  • Not Suitable for CPU-Intensive Tasks
    Node.js is optimized for I/O operations and can become inefficient for CPU-intensive tasks, slowing down overall performance due to its single-threaded event loop.
  • Immaturity of Tools
    Compared to more established technologies, some Node.js libraries and tools still lack maturity and comprehensive documentation, which can be challenging for developers.
  • Callback and Promise Overheads
    Managing asynchronous operations using callbacks or promises can lead to additional complexity and overhead, impacting maintainability and performance if not handled correctly.
  • Fragmented Ecosystem
    The fast-paced evolution of Node.js and its ecosystem can lead to fragmentation, with numerous versions and libraries that may not always be compatible with each other.
  • Security Issues
    The extensive use of third-party libraries via NPM can introduce security vulnerabilities if not properly managed and updated, making applications more susceptible to attacks.

Analysis of Synergy

Overall verdict

  • Synergy is generally considered a good tool for those who need seamless control over multiple computers, providing a practical solution to multi-device management. However, user experiences may vary based on the specific setup and technical expertise.

Why this product is good

  • Synergy by Symless allows users to control multiple devices with a single keyboard and mouse across different operating systems. It's known for improving productivity by eliminating the need for multiple input devices on crowded desks and easing workflow for those working with multiple computers simultaneously.

Recommended for

    Synergy is recommended for IT professionals, developers, graphic designers, and other users who regularly work with multiple computers and need an efficient way to manage them all at once.

Analysis of Node.js

Overall verdict

  • Node.js is a popular and effective choice for building a wide range of applications, from small utilities to large-scale enterprise solutions. Its performance, speed, and community support make it a strong option, especially for real-time applications.

Why this product is good

  • Node.js is considered good because it's built on Google Chrome's V8 JavaScript Engine, making it fast and efficient for handling I/O operations. Its event-driven, non-blocking I/O model makes it suitable for building scalable network applications. Additionally, it has a large ecosystem of packages available through npm, allowing developers to find solutions for almost any problem they might encounter.

Recommended for

  • Web applications with a lot of I/O operations
  • Real-time services such as chat applications
  • APIs for mobile and single-page applications
  • Prototyping and agile development
  • Microservices architecture

Synergy videos

Review - Synergy by Symless - Multi Machine Network Control Software

More videos:

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

Node.js videos

What is Node.js? | Mosh

More videos:

  • Review - What is Node.js Exactly? - a beginners introduction to Nodejs
  • Review - Learn node.js in 2020 - A review of best node.js courses

Category Popularity

0-100% (relative to Synergy and Node.js)
Mouse Tools
100 100%
0% 0
Developer Tools
0 0%
100% 100
Remote PC Access
100 100%
0% 0
Runtime
0 0%
100% 100

User comments

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Reviews

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

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. Whatโ€™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, youโ€™ll need the systems to run on...

Node.js Reviews

Top JavaScript Frameworks in 2025
JavaScript is widely used for back-end or server-side development because it makes a call to the remote server when a web page loads on the browser. When a browser loads a web page, it makes a call to a remote server. Further, the code parses the pageโ€™s URL to understand usersโ€™ requirements before retrieving and transforming the required data to serve back to the browser....
Source: solguruz.com
9 Best JavaScript Frameworks to Use in 2023
Node.js applications are written in JavaScript and run on the Node.js runtime, which allows them to be executed on any platform that supports Node.js. Node.js applications are typically event-driven and single-threaded, making them efficient and scalable. Additionally, the Node Package Manager (NPM) provides a way to install and manage dependencies for Node.js projects...
Source: ninetailed.io
20 Best JavaScript Frameworks For 2023
TJ Holowaychuk built Express in 2010 before being acquired by IBM (StrongLoop) in 2015. Node.js Foundation currently maintains it. The key reason Express is one of the best JavaScript frameworks is its rapid server-side coding. Complex tasks that would take hours to code using pure Node.js can be resolved in a few minutes, thanks to Express. On top of that, Express offers a...
FOSS | Top 15 Web Servers 2021
Node.js is a cross-platform server-side JavaScript environment built for developing and running network applications such as web servers. Node.js is licensed under a variety of licenses. As of March 2021, around 1.2% of applications were running on Node.js. Among the top companies and applications utilizing this modern web server are GoDaddy, Microsoft, General Electric,...
Source: www.zentao.pm
10 Best Tools to Develop Cross-Platform Desktop Appsย 
Electron.js is compatible with a variety of frameworks, libraries, access to hardware-level APIs and chromium engine, and Node.js support. Electron Fiddle feature is great for experimentation as it allows developers to play around with concepts and templates. Simplification is at the center of Electron because developers donโ€™t have to spend unnecessary time on the packaging,...

Social recommendations and mentions

Based on our record, Node.js should be more popular than Synergy. It has been mentiond 921 times since March 2021. 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.

Synergy mentions (284)

  • Two computers, one monitor, zero fiddling โ€“ Alex Plescan
    I did something similar last year with a monitor without built-in KVM but with good DCC support (Ultrasharp U3417W) and Synergy [0]. I use Synergy as part of my desk setup already, but needed a way to view the UI of a normally headless machine. The solution I built was a small shell script that terminated the active Synergy session and started a new one with a different config file (so keyboard/mouse input would... - Source: Hacker News / 2 months ago
  • 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 / over 1 year 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 / over 1 year 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 / over 2 years ago
  • Hrvach/Deskhop: Fast Desktop Switching Device
    Iโ€™ve been using a software solution for this for over a decade. Itโ€™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 / over 2 years ago
View more

Node.js mentions (921)

  • Stop Using Fetch() in React: A Better Way To Call Your Backend
    Node >= 22 or higher installed on their local development machine. - Source: dev.to / 2 months ago
  • How to develop an AI agent application
    TypeScript / Node.js: Excellent for building asynchronous backend systems that must stream text data smoothly to thousands of users simultaneously. - Source: dev.to / 2 months ago
  • 7 Hidden Security Vulnerabilities in Modern Node.js Applications
    Because Node.js operates on a single-threaded asynchronous runtime, it is inherently vulnerable to processes that hog the CPU for too long. I absolutely cringe whenever I see developers blindly copy-pasting complex regular expressions from StackOverflow without actually testing their performance impact. - Source: dev.to / 2 months ago
  • Docker basics: Using mkcert and caddy with docker compose to host web services over HTTPS for local development
    This tutorial walks you through setting up a simple Docker Compose project that serves two Node web servers over HTTPS using Caddy as a reverse proxy. You will learn how to use mkcert to generate wildcard certificates and the minimal configuration needed in the Caddyfile and docker-compose.yml to get it all working. - Source: dev.to / 3 months ago
  • Do You Vibe Code? A DeAI Primer By Oasis
    Node.js: This is required for Hardhat. You can check if your terminal has it installed by running node -v. It will show a version number, if it is already available. If not, download the LTS version from https://nodejs.org/en, install it, then reopen your terminal and recheck to confirm successful installation. - Source: dev.to / 4 months ago
View more

What are some alternatives?

When comparing Synergy and Node.js, you can also consider the following products

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

VS Code - Build and debug modern web and cloud applications, by Microsoft

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

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

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

Laravel - A PHP Framework For Web Artisans