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Eclipse VS OmniSharp

Compare Eclipse VS OmniSharp and see what are their differences

Eclipse logo Eclipse

Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.

OmniSharp logo OmniSharp

OmniSharp is a family of Open Source projects, each with one goal - To enable great .NET development in YOUR editor of choice.
  • Eclipse Landing page
    Landing page //
    2023-10-18
  • OmniSharp Landing page
    Landing page //
    2026-05-25

Eclipse features and specs

  • Rich Plugin Ecosystem
    Eclipse has a large variety of plugins available, which allow for the customization and extension of its functionality. This makes it suitable for different types of development, including Java, C++, and Python.
  • Open Source
    Eclipse is free and open-source, allowing developers to contribute to and modify the codebase. This encourages community engagement and continuous improvement.
  • Cross-Platform Support
    Eclipse runs on various operating systems, including Windows, macOS, and Linux, which provides flexibility for developers working in different environments.
  • Mature and Stable
    Eclipse has been around for a long time and has a large community of users, making it a mature and stable IDE.
  • Extensive Documentation
    Eclipse offers comprehensive documentation and user guides, which are helpful for both beginners and advanced developers.

Possible disadvantages of Eclipse

  • Performance Issues
    Eclipse can be slow, particularly when dealing with large projects or numerous plugins. This can be frustrating and time-consuming for developers.
  • Complexity
    The extensive range of features and plugins can make Eclipse overwhelming and difficult to navigate for new users.
  • Heavy Resource Utilization
    Eclipse is known to consume a significant amount of system resources, which can affect the performance of other applications.
  • Steeper Learning Curve
    Due to its extensive capabilities and complexity, Eclipse may have a steeper learning curve compared to simpler IDEs.
  • Occasional Stability Issues
    While generally stable, Eclipse can sometimes be prone to crashes or bugs, particularly when using third-party plugins that are not well-maintained.

OmniSharp features and specs

  • Cross-platform C# development
    OmniSharp enables C# development across multiple platforms including Windows, macOS, and Linux, breaking the dependency on Visual Studio and allowing developers to work in their preferred operating system.
  • Editor flexibility
    OmniSharp integrates with a wide range of popular code editors such as VS Code, Vim, Emacs, Sublime Text, and Atom, giving developers the freedom to use their preferred editor while still getting rich C# language support.
  • Open source and community-driven
    OmniSharp is fully open source and backed by an active community of contributors. This ensures transparency, continuous improvement, and the ability for developers to contribute fixes or features.
  • Rich IntelliSense and language features
    OmniSharp provides robust language services including IntelliSense, code completion, go-to-definition, find references, refactoring, and diagnostics, offering an experience comparable to full IDEs for C# development.
  • Lightweight alternative to full IDEs
    Unlike heavyweight IDEs such as Visual Studio, OmniSharp combined with a lightweight editor uses significantly fewer system resources, making it ideal for developers working on less powerful machines or those who prefer minimalist tooling.

Possible disadvantages of OmniSharp

  • Complex setup and configuration
    Setting up OmniSharp with certain editors can require significant manual configuration, including installing plugins, configuring paths, and troubleshooting compatibility issues, which can be daunting for newcomers.
  • Feature gap compared to Visual Studio
    While OmniSharp provides many language features, it still lacks some advanced capabilities found in Visual Studio such as full debugging integration, advanced profiling tools, GUI designers, and certain enterprise-level refactoring features.
  • Inconsistent experience across editors
    The quality and depth of OmniSharp integration varies across different editors. Some editors receive better plugin support and more frequent updates than others, leading to an uneven developer experience.
  • Performance issues with large projects
    OmniSharp can experience performance degradation when working with large solutions or projects, resulting in slow IntelliSense responses, high memory consumption, and longer project load times compared to optimized IDEs.
  • Debugging limitations
    OmniSharp itself does not provide debugging capabilities and relies on separate debugger extensions or tools. Setting up and configuring debugging workflows can be more cumbersome compared to the integrated debugging experience in full-featured IDEs.

Analysis of OmniSharp

Overall verdict

  • OmniSharp is a solid, open-source project that brings powerful C# language support and intelligent code completion to a wide range of editors beyond Visual Studio, making it a valuable tool for cross-platform .NET development.

Why this product is good

  • Provides rich C# IntelliSense, code completion, and navigation across many editors like VS Code, Vim, Emacs, and Sublime Text
  • Open-source and free, backed by an active community and integrated into the broader .NET tooling ecosystem
  • Enables cross-platform C# development on Windows, macOS, and Linux
  • Powers the official C# extension for VS Code, giving it a large, proven user base
  • Supports Roslyn-based analysis for accurate diagnostics and refactoring

Recommended for

  • Developers writing C# in editors other than full Visual Studio
  • Cross-platform .NET developers on macOS and Linux
  • VS Code users needing robust C# language features
  • Teams and individuals seeking a free, open-source alternative to heavyweight IDE tooling
  • Contributors and enthusiasts who value community-driven open-source projects

Eclipse videos

Review: 2008 Mitsubishi Eclipse GT V6 (Manual)

More videos:

  • Review - 2009 Mitsubishi Eclipse Review - No Show No Go
  • Review - MotorWeek | Retro Review: '95 Mitsubishi Eclipse

OmniSharp videos

Using the OmniSharp Plugin with the Atom Text Editor

Category Popularity

0-100% (relative to Eclipse and OmniSharp)
IDE
98 98%
2% 2
Text Editors
98 98%
2% 2
Software Development
98 98%
2% 2
Developer Tools
94 94%
6% 6

User comments

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Reviews

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

Eclipse Reviews

Explore 9 Top Eclipse Alternatives for 2024
Eclipse, a pioneering platform in computer programming, was founded by IBM in the late โ€™90s. It offers an Integrated Development Environment (IDE) and supports various languages like Java, C++, Python, and more. With a rich history of innovation, Eclipse has become a go-to choice for individual programmers and large development teams alike.
Source: aircada.com
The Best IDEs for Java Development: A Comparative Analysis
Extensive Plugin System: Eclipse offers an extensive plugin system that allows developers to customize their own features. It supports more than 100 programming languages, including Groovy, JavaScript, C++, and Python.
Source: dev.to
THE BEST 34 APP DEVELOPMENT SOFTWARE IN 2022 LIST
Eclipse is a community for individuals and organisations who wish to collaborate on commercially-friendly open-source software. Its projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle. Originally created by IBM in November 2001 and supported by...
Top 10 Visual Studio Alternatives
Here at the Eclipse platforms, users can effortlessly combine several languages. Moreover, it offers other features as well. You can put your creativity at work as well. That means with the help of imagination and ideas. You can develop services.
Best Eclipse Alternatives to Use
What Do You Need to Know About Eclipse Eclipse was released in June 1999 by IBM as a platform to aid developers in producing applications based on Java technology. The software is named after the lunar event of the same name, which is where the idea of developing a platform for applications based on the Java programming language originat... Continue Reading โ†’
Source: eclipsewin.com

OmniSharp Reviews

We have no reviews of OmniSharp yet.
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Social recommendations and mentions

Based on our record, Eclipse seems to be more popular. It has been mentiond 9 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.

Eclipse mentions (9)

  • Microsoft: An Open-Source Comedy
    ๐Ÿ’ก You can still install extensions on vscodium using Open VSX Registry, which is an opensource project by Eclipse Foundation. - Source: dev.to / 10 months ago
  • Decryption and incomplete certificate chains
    For example I can access eclipse.org in chrome without issue. I'm seeing my PA cert when I check it's trusted. However when I run the eclipse installer it fails which I suspect is because of the decryption. I'm seeing this log in the decryption log both before and after installing the IA cert and when both using the installer or browsing the site. Source: about 3 years ago
  • The eclipse/Java struggle is real...Please help
    I think u/rayok's post is probably going to be your most relevant lead. Maybe it's a JRE related thing. I'd go ahead and reinstall eclipse from the eclipse.org download page rather than your OS app store. Maybe the JRE didnt get installed correctly idk. Source: about 3 years ago
  • nvim lsp installer fails to install jdtls
    "Failed to fetch the latest release from eclipse.org". Source: over 3 years ago
  • Eclipse doesn't start after OSX Monterey 12.1 update on M1
    After updating the Mac Air M1 Eclipse just didn't start. I downloaded AArch64 again from eclipse.org and now it works. Would there have been a smarter way to fix this? Source: over 4 years ago
View more

OmniSharp mentions (0)

We have not tracked any mentions of OmniSharp yet. Tracking of OmniSharp recommendations started around May 2026.

What are some alternatives?

When comparing Eclipse and OmniSharp, you can also consider the following products

Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.

IntelliJ IDEA - Capable and Ergonomic IDE for JVM

SharpDevelop - #develop (short for SharpDevelop) is a free IDE for C#, VB.NET and Boo projects on Microsoft's .

Xcode - Xcode is Appleโ€™s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.

MonoDevelop - MonoDevelop enables developers to write desktop and web applications on Linux, Windows and Mac OS X.

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