Eclipse Theia

Eclipse Theia
Developers	EclipseSource, Ericsson, Red Hat, STMicroelectronics, TypeFox
Initial release	March 2017;8 years ago (March 2017)
Stable release	1.67 [1]   / 18 December 2025;4 days ago (18 December 2025)
Repository	github.com/eclipse-theia
Written in	TypeScript
Type	Programming tool, Integrated development environment
License	Eclipse Public License 2.0 (EPL2) or GNU General Public License, version 2 (GPLv2) with the classpath exception [2]
Website	theia-ide.org

Eclipse Theia is an Eclipse open source project providing the Theia Platform and the Theia IDE.

The Eclipse Theia Platform is a free and open-source framework for building IDEs and tools based on web technologies. ^[3] Theia-based applications can be deployed as desktop and web applications. ^[4] It is implemented in TypeScript and emphasizes extensibility. ^{[5] [6] [7]}

With Theia AI, the platform provides explicit support for building tools and IDEs with artificial intelligence (AI) capabilities. ^{[8] [9]}

The Eclipse Theia IDE is an IDE for desktop devices and the cloud based on the Theia platform, an open alternative to Visual Studio Code. ^{[10] [11]} It features a highly customizable developer experience and uses Theia AI to support AI features (also referred to as the AI-powered Theia IDE, an open alternative to GitHub Copilot or Cursor). ^{[12] [13] [14]} The AI-powered Theia IDE includes Theia Coder, an open, adaptable and transparent AI coding assistant and integrates the Model Context Protocol (MCP) ^{[15] [16] [17]} and Claude Code. ^[18]

While Eclipse Theia incorporates certain components from Visual Studio Code, such as the Monaco editor, it is independently developed with a modular architecture and is not a fork of VS Code. ^{[19] [20]}

History

Theia was originally developed by TypeFox and Ericsson, and continually receives contributions from EclipseSource, Red Hat, IBM, Google, Arm Holdings as well as from individual contributors. ^{[21] [22]} It was first launched in March 2017. ^[23] Since May 2018, Theia has been a project of the Eclipse Foundation. ^[24] Eclipse Theia is now considered to be the next generation Eclipse Platform for tools and IDEs. ^[25]

About

Theia is built on the Language Server Protocol (LSP) and supports a variety of programming languages. ^[26] It can be used as a desktop application, a web application, or a hybrid application with separate front and back ends. All of Theia's features are implemented as extensions, which allows third-party developers to modify Theia's functionality by using the same application programming interfaces (APIs) as the application's default components. ^[27] Theia's layout consists of draggable docks. ^{[27] [28]} Theia is compatible with Visual Studio Code extensions. ^[29]

Theia is a free and open-source software project under the Eclipse Foundation and is licensed under the Eclipse Public License 2.0 (EPL2). ^[30]

Usage

• Arduino IDE 2.0 is based on Eclipse Theia, replacing the Processing-based IDE. ^[31]
• Code Composer Studio by Texas Instruments uses Eclipse Theia as the framework for its development environment for Texas Instruments processors and microcontrollers. ^{[32] [33]}
• Mbed Studio by Arm is an IDE for embedded development, focusing on Arm microcontrollers, and is built on Eclipse Theia. ^{[34] [35]}
• The Theia IDE itself demonstrates the capabilities of Eclipse Theia as a general-purpose IDE, running on both desktop and cloud environments. ^{[36] [37]}
• Sokatoa is a tool for GPU profiling, analysis, and debugging workflows for Android, built on Eclipse Theia. ^[38]
• The CDT Cloud Blueprint provides a reference architecture for cloud-based C/C++ development environments using Eclipse Theia. ^{[39] [40]}
• logi.cloud by logi.cals is a modern engineering platform for industrial automation, developed using Eclipse Theia. ^[41]
• The Coffee Editor is a web-based modeling tool that showcases Eclipse Theia's integration with frameworks such as Eclipse GLSP and Sprotty. ^{[42] [43]}
• VUEngine Studio is a development environment for creating games and applications using the VUEngine framework, built on Eclipse Theia. ^[44]
• Smartface is an IDE for developing cross-platform mobile applications, leveraging the Eclipse Theia framework. ^[45]
• Record Evolution Studio (ReSWARM) is a collaborative platform for IoT and AI model training and deployment, based on Eclipse Theia. ^[46]
• Code RealTime is a tool for developing real-time applications with debugging and collaboration features. ^{[47] [48]}
• QuickConnect Studio by Renesas is a development environment for prototyping and deploying embedded systems, built on Eclipse Theia. ^[49]

Reception

In January 2019, JAXenter, a website and blog about coding, ^[50] ranked Theia as the third-most popular JavaScript integrated development environment of 2018 according to GitHub metrics, behind Visual Studio Code and Atom. ^[51]

In 2025, Theia AI won the CODiE Award for Best Open-Source Development Tool. ^[52]

See also

• Eclipse (software)

References

1. "Eclipse Theia 1.67 Release: News and Noteworthy". 18 December 2025.
2. "Theia license". GitHub .
3. Helming, Jonas; Koegel, Maximilian (2018-06-20). "What is Eclipse Theia?". EclipseSource. Retrieved 2022-03-12.
4. "Theia · GitBook". www.theia-ide.org. Retrieved 2019-01-16.
5. Le Meur, Stevan (2018-12-19). "Eclipse Che 7 is Coming and It's Really Hot (2/4)". RHD Blog. Retrieved 2019-01-16.
6. Ferrara, Claudio Davide (2017-12-04). "Theia: un solo IDE per Desktop e Cloud". HTML.it (in Italian). Retrieved 2019-02-14.
7. Heller, Martin (2019-02-25). "Cloud IDE review: AWS Cloud9 vs. Eclipse Che vs. Eclipse Theia". InfoWorld. Retrieved 2019-02-25.
8. "Introducing Theia AI: The Open Framework for Building AI-native Custom Tools and IDEs". EclipseSource. 2025-03-13. Retrieved 2025-03-14.
9. "Introducing Theia AI". EclipseSource. 2024-10-07. Retrieved 2024-10-16.
10. "Theia IDE website". www.theia-ide.org. Retrieved 2024-01-10.
11. "Introducing the Theia IDE". EclipseSource. Retrieved 2025-01-28.
12. Ramel, David. "Open Source 'Eclipse Theia IDE' Exits Beta to Challenge Visual Studio Code -". Visual Studio Magazine. Retrieved 2024-11-19.
13. "Introducing the AI-powered Theia IDE: AI-driven coding with full Control". EclipseSource. 2025-03-13. Retrieved 2025-03-14.
14. "Introducing AI Support in Theia IDE". EclipseSource. 2024-10-08. Retrieved 2024-10-16.
15. "Theia Coder: New AI coding assistant for Theia IDE". Heise. 2025-03-06. Retrieved 2025-03-14.
16. "Introducing Theia Coder - the open AI coding agent with full control". EclipseSource. 2025-03-06. Retrieved 2025-03-14.
17. "Let AI commit (to) your work - With Theia AI, Git and MCP". EclipseSource. 2025-03-06. Retrieved 2025-03-14.
18. "It's Released: Your Native Claude Code IDE Integration in Theia". EclipseSource Blog. EclipseSource. 2025-10-14. Retrieved 2025-10-14.
19. "Theia IDE vs. VS Code: A Detailed Comparison". EclipseSource. 2024-07-12. Retrieved 2024-12-24.
20. "Eclipse Theia vs. VS Code OSS: A Detailed Comparison". EclipseSource. 2023-09-08. Retrieved 2024-12-24.
21. "Theia Project Contributor Overview". projects.eclipse.org. 2021-12-30. Retrieved 2021-12-30.
22. "Theia - Cloud and Desktop IDE". www.theia-ide.org. Retrieved 2019-01-16.
23. Mohilo, Dominik (2017-05-30). "What Theia is all about — A classic IDE built with modern technology". JAXenter. Retrieved 2019-01-16.
24. "Eclipse Theia". projects.eclipse.org. Retrieved 2019-01-16.
25. "Eclipse Theia is the Next Generation Eclipse Platform for IDEs and Tools!". eclipsesource.com/. Retrieved 2024-01-10.
26. "Langserver.org" . Retrieved 2019-01-16.
27. Mohilo, Dominik (2017-05-18). "Theia: Eine einzige IDE auf dem Desktop und in der Cloud". JAXenter (in German). Retrieved 2019-01-16.
28. Le Meur, Stevan (2018-12-17). "Eclipse Che 7 is Coming and It's Really Hot (1/4)". Eclipse Che Blog. Retrieved 2019-01-17.^{[ permanent dead link ]}
29. "Extensions and Plugins". Theia - Cloud and Desktop IDE Platform.
30. Beaton, Wayne. "Eclipse Public License 2.0 | The Eclipse Foundation". www.eclipse.org. Retrieved 2019-01-16.
31. Aufranc, Jean-Luc (2021-03-03). "Arduino IDE 2.0 beta released with live debugger, revamped user interface". cnx-software.com. Retrieved 2021-03-04.
32. "Code Composer Studio". Texas Instruments. Retrieved 2024-12-27.
33. "Bringing Embedded Development to the Next Generation Code Composer Studio's Evolution with Theia". YouTube. 11 December 2024. Retrieved 2025-01-17.
34. "Mbed Studio". Arm. Retrieved 2023-12-27.
35. "Eclipse Theia Builds Momentum". Eclipse. Retrieved 2025-01-17.
36. "Theia IDE". Eclipse Theia. Retrieved 2024-12-27.
37. "Introducing the Theia IDE". EclipseSource. Retrieved 2025-01-17.
38. "GPU Profiling and Debugging with Sokatoa Built on Theia". YouTube. 11 December 2024. Retrieved 2024-12-27.
39. "CDT Cloud Blueprint". Eclipse CDT Cloud. Retrieved 2024-12-27.
40. "Introducing CDT cloud Blueprint". EclipseSource. Retrieved 2025-01-17.
41. Buck, Paul (2024-12-27). "Theia Adopter Story: logi.cals' logi.cloud – A Modern Engineering Platform for Industrial Automation". Eclipse Foundation. Retrieved 2023-12-27.
42. "Coffee Editor Example". Eclipse EMF Cloud. Retrieved 2024-12-27.
43. "A web-based modeling tool based on Eclipse Theia". EclipseSource. Retrieved 2025-01-17.
44. "VUEngine Studio". VUEngine. Retrieved 2024-12-27.
45. "Smartface" . Retrieved 2024-12-27.
46. "Record Evolution Studio". Record Evolution. Retrieved 2024-12-27.
47. "Code RealTime". Secure Dev Ops. Retrieved 2024-12-27.
48. "Code RealTime: Harnessing the Power of the Eclipse Cloud DevTools Ecosystem". Eclipse. Retrieved 2025-01-17.
49. "QuickConnect Studio". Renesas. Retrieved 2024-12-27.
50. "JAXenter - News, Articles, Code". JAXenter. Retrieved 2020-10-22.
51. Papadopoulou, Eirini-Eleni (2019-01-17). "Vue.js is the absolute rockstar of the JavaScript ecosystem". JAXenter. Retrieved 2019-02-11.
52. "2025 CODiE Award Winners". CODiE Awards. Retrieved 2025-12-18.

External links

• Official website