# Eclipse vs Theia

**Leader by vioscaleAI score:** Theia

| Attribute | Eclipse | Theia |
|---|---|---|
| **vioscaleAI score** | 39.9 (29% (low)) | 62.6 (64% (medium)) |
| activity.commits_last_30d | 2 | 94 |
| adoption.dependent_repos | - | 324 |
| adoption.github_stars | 10 | 21,710 |
| content.faq | `[{"answer":"Eclipse Foundation is a global organization supporting over 450 open source projects with 15,000+ contributors, providing integrated development environments, platforms, and tools for software development across embedded systems, enterprise automation, mobile, and other domains. It is indexed under IDEs & Code Editors.","source":"https://www.eclipse.org","question":"What is Eclipse?","confidence":0.6},{"answer":"Eclipse is open source, so it can be self-hosted and used at no licence cost. It is released under the EPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.eclipse.org","question":"Is Eclipse free to use?","confidence":0.6},{"answer":"Eclipse supports the web, Windows, macOS and Linux. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.eclipse.org","question":"What platforms does Eclipse support?","confidence":0.6},{"answer":"Yes. Eclipse can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.eclipse.org","question":"Can Eclipse be self-hosted?","confidence":0.6},{"answer":"We have confirmed 12 integrations for Eclipse, including VS Code extensions, Monaco editor, Language Server Protocol, Arduino IDE, Code Composer Studio, Mbed Studio, QuickConnect Studio and logi.CLOUD, plus 4 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.eclipse.org","question":"What does Eclipse integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Eclipse. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Eclipse not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.eclipse.org/security/news/","question":"What security certifications does Eclipse have?","confidence":0.7},{"answer":"Yes. Eclipse is published under the EPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/eclipse-csi/security-handbook","question":"Is Eclipse open source?","confidence":0.95},{"answer":"Eclipse is available worldwide. The vendor is headquartered in Belgium.","source":"https://www.eclipse.org","question":"Where is Eclipse available?","confidence":0.75}]` | `[{"answer":"A development tool combining open-source principles with artificial intelligence features, available for cloud and desktop use. It emphasizes user privacy, supports many programming languages, and works with thousands of existing development tools. It is indexed under IDEs & Code Editors.","source":"https://theia-ide.org","question":"What is Theia?","confidence":0.6},{"answer":"Theia is open source, so it can be self-hosted and used at no licence cost. It is released under the EPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://theia-ide.org","question":"Is Theia free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Theia. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://theia-ide.org","question":"What platforms does Theia support?","confidence":0.6},{"answer":"Yes. Theia can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://theia-ide.org","question":"Can Theia be self-hosted?","confidence":0.6},{"answer":"We have confirmed 9 integrations for Theia, including Python, Java, C++, Go, YAML, ESLint, NPM and GitHub Pull Requests, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://theia-ide.org","question":"What does Theia integrate with?","confidence":0.6},{"answer":"Yes. Theia is published under the EPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/eclipse-theia/theia","question":"Is Theia open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Eclipse Foundation is a global organization supporting over 450 open source projects with 15,000+ contributors, providing integrated development environments, platforms, and tools for software development across embedded systems, enterprise automation, mobile, and other domains. | Theia IDE is an extensible, multi-language development environment for both cloud and desktop deployment. It combines integrated AI assistance with privacy-preserving architecture where users maintain full control over their code, data, and AI model choices. |
| features.capabilities | `{"type":"full_ide","lsp_dap":true,"deployment":"both","os_support":"Windows, macOS, Linux","open_source":"oss","base_platform":"original","extensibility":"plugins","pricing_model":"free","language_scope":"polyglot","git_integration":true,"code_intelligence":"ide_grade","integrated_debugger":true}` | `{"type":"full_ide","lsp_dap":true,"builtin_ai":"native","deployment":"both","os_support":"Cross-platform (browser and desktop via Electron)","open_source":"oss","base_platform":"original","extensibility":"marketplace","pricing_model":"free","language_scope":"polyglot","code_intelligence":"lsp_grade"}` |
| integrations.count | 12 | 3,000 |
| integrations.list | `[{"name":"VS Code extensions"},{"name":"Monaco editor"},{"name":"Language Server Protocol"},{"name":"Arduino IDE"},{"name":"Code Composer Studio"},{"name":"Mbed Studio"},{"name":"QuickConnect Studio"},{"name":"logi.CLOUD"},{"name":"Martini Designer"},{"name":"Code RealTime"},{"name":"Smartface IDE"},{"name":"Eclipse GLSP"}]` | `[{"name":"Python"},{"name":"Java"},{"name":"C++"},{"name":"JavaScript"},{"name":"Go"},{"name":"YAML"},{"name":"Docker"},{"name":"ESLint"},{"name":"NPM"},{"name":"GitHub Pull Requests"},{"name":"GitLens"},{"name":"GitHub","native":true,"category":"vcs","direction":"bidirectional"},{"name":"GitHub Copilot","native":true,"category":"ai","direction":"inbound"},{"name":"OpenAI","category":"ai","direction":"inbound"},{"name":"Anthropic","category":"ai","direction":"inbound"},{"name":"Google","category":"ai","direction":"inbound"},{"name":"Ollama","category":"ai","direction":"inbound"},{"name":"Mistral","category":"ai","direction":"inbound"},{"name":"HuggingFace","category":"ai","direction":"inbound"},{"name":"Claude Code","native":true,"category":"ai","direction":"inbound"},{"name":"VS Code Extensions","category":"ide_extensions","direction":"inbound"}]` |
| language.primary | Makefile | TypeScript |
| license.spdx | EPL-2.0 | EPL-2.0 |
| market.availability | `{"hqCountry":"BE","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"mac":true,"web":true,"linux":true,"windows":true}` | `{"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.eclipse.org","retrievedAt":"2026-08-13T22:38:49.462Z"}` | `{"type":"free","freeTier":true,"sourceUrl":"https://theia-ide.org","retrievedAt":"2026-10-14T21:35:08.250Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | free |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 12 |
| release.history | - | `[{"url":"https://github.com/eclipse-theia/theia/releases/tag/next","date":"2026-10-14T00:38:12Z","type":"prerelease","version":"next"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.74.2","date":"2026-09-30T13:06:55Z","type":"stable","version":"v1.74.2"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.76.0","date":"2026-09-24T14:38:20Z","type":"stable","version":"v1.76.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.75.0","date":"2026-08-27T14:59:12Z","type":"stable","version":"v1.75.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.74.1","date":"2026-08-06T15:44:57Z","type":"stable","version":"v1.74.1"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.74.0","date":"2026-07-31T11:53:39Z","type":"stable","version":"v1.74.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.73.1","date":"2026-07-01T12:46:12Z","type":"stable","version":"v1.73.1"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.73.0","date":"2026-06-25T13:02:04Z","type":"stable","version":"v1.73.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.72.3","date":"2026-06-10T08:44:10Z","type":"stable","version":"v1.72.3"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.72.2","date":"2026-06-05T14:19:07Z","type":"stable","version":"v1.72.2"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.72.1","date":"2026-05-29T12:04:49Z","type":"stable","version":"v1.72.1"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.72.0","date":"2026-05-28T14:14:04Z","type":"stable","version":"v1.72.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.71.2","date":"2026-05-27T15:57:40Z","type":"stable","version":"v1.71.2"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.71.1","date":"2026-05-11T09:28:09Z","type":"stable","version":"v1.71.1"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.71.0","date":"2026-04-30T12:29:04Z","type":"stable","version":"v1.71.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.70.2","date":"2026-04-10T09:50:27Z","type":"stable","version":"v1.70.2"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.70.1","date":"2026-04-08T10:03:27Z","type":"stable","version":"v1.70.1"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.70.0","date":"2026-03-26T14:55:36Z","type":"stable","version":"v1.70.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.69.0","date":"2026-02-26T15:25:49Z","type":"stable","version":"v1.69.0"},{"url":"https://github.com/eclipse-theia/theia/releases/tag/v1.68.2","date":"2026-02-05T15:18:28Z","type":"stable","version":"v1.68.2"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | yes | - |
| security.scorecard | - | 5 |
| security.trust_center | https://www.eclipse.org/security/news/ | - |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40theia%2Fmarkers&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (IDEs & Code Editors)

| Capability | Eclipse | Theia |
|---|:--:|:--:|
| **Core** |  |  |
| Type | Full IDE | Full IDE |
| Language scope | Polyglot | Polyglot |
| **Deployment** |  |  |
| Deployment | Both | Both |
| **Platform support** |  |  |
| OS support | Windows, macOS, Linux | Cross-platform (browser and desktop via Electron) |
| Base platform | Original | Original |
| **Extensibility** |  |  |
| Extensibility | Plugins | Extension marketplace |
| **DX** |  |  |
| LSP / DAP support | ✓ | ✓ |
| Remote / dev-containers | - | - |
| Integrated debugger / profiler | ✓ | - |
| Code intelligence depth | IDE-grade | LSP-grade |
| Built-in git integration | ✓ | - |
| **AI** |  |  |
| Built-in AI | - | Native |
| **Licensing** |  |  |
| Openness | Open-source | Open-source |
| **Pricing** |  |  |
| Pricing model | Free | Free |

*Source: vioscaleAI. Generated 2026-10-16T21:32:40.416Z. "-" = undocumented, not absent.*