Theia

An open-source IDE framework for cloud and desktop development with integrated AI capabilities

Vendor
The Eclipse Foundation
Also known as
theia

What is Theia?

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.

Independently observed

Theia pricing

We don't have Theia's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.

What Theia does

The capabilities that matter for ides & code editors, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

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

Platform & deployment

Independently observed
Platforms
  • macOS
  • Web
  • Linux
  • Windows
Deployment
  • Cloud / SaaS
  • Self-hosted

Integrations (21)

Independently observed
vcs
  • GitHub⇄•
ai
  • GitHub Copilot←•
  • OpenAI←
  • Anthropic←
  • Google←
  • Ollama←
  • Mistral←
  • HuggingFace←
  • Claude Code←•
ide_extensions
  • VS Code Extensions←
  • Python
  • Java
  • C++
  • JavaScript
  • Go
  • YAML
  • Docker
  • ESLint
  • NPM
  • GitHub Pull Requests
  • GitLens

Security & compliance

Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality

Theia FAQ

Common questions about Theia, answered from independent, dated evidence.

What is Theia?

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

Is Theia free to use?

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

What platforms does Theia support?

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

Can Theia be self-hosted?

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

What does Theia integrate with?

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

Is Theia open source?

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

Theia alternatives

Other ides & code editors we track, ranked by the same independent score.

All Theia alternatives, ranked →

Compare Theia

Side by side against other ides & code editors, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Theia, not the verdict.

Balanced composite 63 / 100
medium · 64%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Integrations1000.087.9✓
Development activity620.095.9✓
Release cadence930.054.9✓
Dependent projects420.062.6✓
Stars820.032.1✓
Security score500.042.1✓
Capabilities290.072.0✓
Security posture00.060.0-
Package downloads00.140.0-
Developer Q&A activity00.060.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d94mediumsource · 2026-10-14 · 65%

Adoption

AttributeValueEvidence
Github stars21,710highsource · 2026-10-14 · 90%
Dependent repos324highsource · 2026-10-14 · 85%

Content

AttributeValueEvidence
Faq6 itemsmediumsource · 2026-09-10 · 66%

Features

AttributeValueEvidence
CapabilitiesType: full_ide · Lsp dap: Yes · Builtin ai: native · Deployment: both · Os support: Cross-platform (browser and desktop via Electron) · Open source: ossmediumsource · 2026-10-14 · 60%

Integrations

AttributeValueEvidence
Count3,000mediumsource · 2026-08-13 · 60%

Language

AttributeValueEvidence
PrimaryTypeScripthighsource · 2026-10-14 · 90%

License

AttributeValueEvidence
SpdxEPL-2.0highsource · 2026-10-14 · 95%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-10-14 · 60%
Modelfreemediumsource · 2026-10-14 · 60%
Price levelfreemediumsource · 2026-10-14 · 60%
TransparentYesmediumsource · 2026-10-14 · 60%

Release

AttributeValueEvidence
Cadence days12mediumsource · 2026-10-14 · 70%
History20 itemsmediumsource · 2026-10-14 · 70%

Security

AttributeValueEvidence
Scorecard5highsource · 2026-10-14 · 90%
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40theia%2Fmarkers&per_page=100 · Last 12m: 0highsource · 2026-10-14 · 90%
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For the makers of Theia

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Last updated . Canonical URI: https://www.vioscale.ai/software/theia.