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Eclipse vs Theia: What are the differences?

Introduction

Eclipse and Theia are both integrated development environments (IDEs) that are widely used in the software development community. While they share some similarities, there are several key differences that set them apart from each other.

  1. Architecture: One of the major differences between Eclipse and Theia lies in their architecture. Eclipse is built on a plug-in architecture, where functionalities are added through plug-ins. On the other hand, Theia is built on a modular architecture, where functionalities are provided through separate modules that can be easily combined and extended. This architectural difference allows Theia to be more flexible and modular than Eclipse.

  2. Technology Stack: Eclipse primarily uses Java as its programming language, while Theia is built on modern web technologies such as TypeScript, HTML, and CSS. This difference in technology stack makes Theia more accessible to web developers and provides better support for web-based applications compared to Eclipse.

  3. Customization and Extensibility: When it comes to customization and extensibility, Theia offers more flexibility than Eclipse. Theia allows developers to easily customize the IDE by adding or removing functionalities through its modular architecture. Eclipse, on the other hand, has a steeper learning curve for customization as it relies on the Eclipse plug-in development model.

  4. User Interface (UI): The user interface of Eclipse and Theia is another area where they differ. Eclipse has a more traditional UI with a desktop-like appearance, while Theia provides a more modern and browser-based UI. Theia's UI is designed to resemble popular code editors like Visual Studio Code, making it more intuitive and familiar for developers.

  5. Remote Development: Theia has built-in support for remote development, allowing developers to work with code and projects that are hosted on remote servers. Eclipse, on the other hand, requires additional plug-ins or configurations to enable remote development. This built-in support for remote development in Theia makes it more convenient for developers working in distributed or cloud-based environments.

  6. Community and Ecosystem: Eclipse has a long-established community and a vast ecosystem of plug-ins and extensions. Theia, being a relatively newer IDE, has a smaller but growing community and a more limited ecosystem compared to Eclipse. However, Theia benefits from its compatibility with the Visual Studio Code extension ecosystem, which provides a rich set of extensions for developers.

In summary, Eclipse and Theia differ in their architecture, technology stack, customization and extensibility options, user interface, remote development support, and community/ecosystem.

Advice on Eclipse and Theia
christy craemer
Needs advice
on
EclipseEclipseIntelliJ IDEAIntelliJ IDEA
and
PyCharmPyCharm

UPDATE: Thanks for the great response. I am going to start with VSCode based on the open source and free version that will allow me to grow into other languages, but not cost me a license ..yet.

I have been working with software development for 12 years, but I am just beginning my journey to learn to code. I am starting with Python following the suggestion of some of my coworkers. They are split between Eclipse and IntelliJ IDEA for IDEs that they use and PyCharm is new to me. Which IDE would you suggest for a beginner that will allow expansion to Java, JavaScript, and eventually AngularJS and possibly mobile applications?

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Replies (12)
Vlad Vetsh
Recommends
on
Visual Studio CodeVisual Studio Code

Pycharm is great for python development, but can feel sometimes slow and community version has Somme very annoying restrictions (like they disabled jupyter notebooks plugin and made it premium feature). I personally started looking into VS Code as an alternative, and it has some very good potential. I suggest you take it into account.

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Recommends
on
PyCharmPyCharm

The Community version of PyCharm is free and should give you what you need to get started with Python. Both PyCharm and IntelliJ are made by JetBrains. IntelliJ is initially focused on Java but you can get plugins for lots of other things. I subscribe to JetBrains' Toolbox: https://www.jetbrains.com/toolbox-app/ and have access to all of their great tools.

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Charles Nelson
Recommends
on
IntelliJ IDEAIntelliJ IDEA

I couldn't imagine using a development tool other than the IntelliJ IDEA Ultimate All Products Pack. A single license allows me to work directly on my server running Ubuntu and/or my workstation running Windows 10 Pro simultaneously. My current project uses HTML, W3CSS, JavaScript, Java, Groovy, Grails, C, GO, Python, Flask, and Rust. For me it's worth every penny of the $150 license fee. And you can try it for free.

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Recommends
on
Visual Studio CodeVisual Studio Code

Hi, I will give my opinion based on my experience. I have used PyCharm, both community and Professional version. The community has limited functions, like you can't use a Jupyter notebook whereas it's available in the Professional version. PyCharm is slower compared to Visual Studio Code. Also Visual Studio Code is an editor which supports various languages. I myself have used both Visual Studio Code and PyCharm. I feel Visual Studio Code would be better choice. You may as well decide based upon your requirements.

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Ivan Martinez Morales
Software Engineer Intern · | 4 upvotes · 695.6K views
Recommends
on
Visual Studio CodeVisual Studio Code

I'd personally recommend Visual Studio Code as it gives you the flexibility of working in any language, so long as there are extensions to support it. It gives you the flexibility to learn Python, venture into Java, Javascript, and eventually AngularJS, and potentially mobile applications. It's also free and you can install it on your personal computer. I think Visual Studio Code would serve your intended use case best.

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awesomebanana2018
Recommends
on
Visual Studio CodeVisual Studio Code

Visual Studio code is easy to use, has a good UI, and a large community. Python works great with it, but unlike some other editors, it works with most languages either by default or by downloading a plugin. VS Code has built in linting, syntax coloring, autocompletes (IntelliSense), and an api for plugins to do there own tooling.

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Isaac Povey
Casual Software Engineer at Skedulo · | 3 upvotes · 695.7K views
Recommends
on
IntelliJ IDEAIntelliJ IDEA

IntelliJ really is the best for Java, I switched from eclipse years ago and never looked back. As for javascript, python and angular either using the standalone products from jetbrains (pycharm for python, webstorm for js) or installing the relevant plugins for InteliJ will be your best bet. Pycharm etc. are really just InteliJ with some additional plugins installed.

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Pranshu Verma
Engineer at Cisco Systems · | 3 upvotes · 695.6K views
Recommends
on
PyCharmPyCharm

If you starting with Python then PyCharm is better. For Java I would suggest to go with IntelliJ IDEA but people also prefer eclipse so I would say try both and then decide. For JS/Angular/React I would suggest go with VSCode. I personally use it and prefer as its light weight and have good integration with chrome for frontend development.

PyCharm, IntelliJ IDEA are both products of JetBrains. They have a free (limited feature) and paid edition. Eclipse is free. VSCode is also free.

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Pritam Nandy
Engineering Manager at Reliance Jio Infocomm Limited · | 1 upvotes · 643.1K views
Recommends
on
PyCharmPyCharm

This is a very easy to use tool and gives you the opportunity to start coding right after the installation with almost everything setup automatically by the tool.

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Brian Turner
System Architect at Mary's Watch, Inc. · | 1 upvotes · 695.6K views
Recommends
on
IntelliJ IDEAIntelliJ IDEA

Easy to learn and everything you need

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Recommends
on
PyCharmPyCharm

Pycharm is all you need to get start coding in python or any of its framework. Its an awesome tool you should give it a try :)

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Recommends
on
PyCharmPyCharm

All three are great, however, I believe that IntelliJ IDEA's multiple IDE's are slightly more straight-forward and more up-to date than Eclipse. If I had to choose one specifically for Python projects I would go with PyCharm.

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Decisions about Eclipse and Theia
Manabu Tokunaga
CEO, Co-Founder at WinguMD · | 10 upvotes · 526.5K views

I originally chose IntelliJ over Eclipse, as it was close enough to the look and feel of Visual Studio and we do go back and forth between the two. We really begin to love IntelliJ and their suite of IDEs so we are now using AppCode for the IOS development because the workflow is identical with the IntelliJ. IntelliJ is super complex and intimidating at first but it does afford a lot of nice utilities to get us produce clean code.

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Pros of Eclipse
Pros of Theia
  • 131
    Does it all
  • 76
    Integrates with most of tools
  • 64
    Easy to use
  • 63
    Java IDE
  • 32
    Best Java IDE
  • 9
    Open source
  • 3
    Hard for newbews
  • 2
    Great gdb integration
  • 2
    Professional
  • 2
    Good Git client allowing direct stage area edit
  • 2
    True open source with huge contribution
  • 2
    Great code suggestions
  • 2
    Extensible
  • 2
    Lightweight
  • 0
    Works with php
  • 1
    Familiar UI for VSCode users
  • 1
    Easy to use
  • 1
    Docker
  • 1
    Desktop
  • 1
    Online
  • 1
    Anywhere coding

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Cons of Eclipse
Cons of Theia
  • 14
    2000 Design
  • 9
    Bad performance
  • 4
    Hard to use
  • 2
    Can be hard to setup

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What is Eclipse?

Standard Eclipse package suited for Java and plug-in development plus adding new plugins; already includes Git, Marketplace Client, source code and developer documentation. Click here to file a bug against Eclipse Platform.

What is Theia?

Theia provides the end-user with a full-fledged multi-language IDE (not just a smart editor) and supports equally the paradigm of Cloud IDE and Desktop IDE.

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What companies use Eclipse?
What companies use Theia?
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What tools integrate with Eclipse?
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What are some alternatives to Eclipse and Theia?
Android Studio
Android Studio is a new Android development environment based on IntelliJ IDEA. It provides new features and improvements over Eclipse ADT and will be the official Android IDE once it's ready.
Visual Studio
Visual Studio is a suite of component-based software development tools and other technologies for building powerful, high-performance applications.
IntelliJ IDEA
Out of the box, IntelliJ IDEA provides a comprehensive feature set including tools and integrations with the most important modern technologies and frameworks for enterprise and web development with Java, Scala, Groovy and other languages.
NetBeans IDE
NetBeans IDE is FREE, open source, and has a worldwide community of users and developers.
PyCharm
PyCharm’s smart code editor provides first-class support for Python, JavaScript, CoffeeScript, TypeScript, CSS, popular template languages and more. Take advantage of language-aware code completion, error detection, and on-the-fly code fixes!
See all alternatives