Source: https://seerepo.com/compare/conwnet/github1s/vs/eclipse-theia/theia
Markdown source: https://seerepo.com/compare/conwnet/github1s/vs/eclipse-theia/theia.md
Description: github1s and theia share 5 technologies: Anthropic, OpenAI, Mermaid, dompurify, and markdown-it. Both are written in TypeScript.

# github1s vs theia

github1s and theia share 5 technologies: Anthropic, OpenAI, Mermaid, dompurify, and markdown-it. Both are written in TypeScript.

- [conwnet/github1s](https://seerepo.com/r/conwnet/github1s): One second to read GitHub code with VS Code.
- [eclipse-theia/theia](https://seerepo.com/r/eclipse-theia/theia): Eclipse Theia is a cloud & desktop IDE framework implemented in TypeScript.

## What they share and what sets them apart

- In common: Anthropic, OpenAI, Mermaid, dompurify, markdown-it
- Only in github1s: htm, Preact, history, ai, @ai-sdk/mcp, @vscode/markdown-it-katex
- Only in theia: Electron, Hugging Face, MCP, React, Express, electron-store, vhost, idb, mustache, @openai/codex-sdk, js-yaml, Zod, ollama, lumino, react-virtuoso, react-tooltip, @vscode/codicons, Font Awesome, keytar, markdown-it-anchor, markdown-it-emoji, Ajv, prom-client, pdfobject, escape-html, react-textarea-autosize, xterm, xterm-addon-fit

## Side by side

| | github1s | theia |
|---|---|---|
| Size | 26,361 lines written, 201 code files | 648,258 lines written, 2,891 code files |
| Who writes it | 0.2% of its commits signed by AI. With GitHub Copilot | 0% of its commits signed by AI. With Claude Code and GitHub Copilot |
| Activity | Last push November 4, 2026, 520 commits, 23,312 stars | Last push November 5, 2026, 8,868 commits, 21,738 stars |
| Tests | 9 test files. 6.5% of its code files have a test that imports them | 773 test files. 29.2% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, github1s or theia?

theia, with 648,258 lines written; github1s has 26,361.

The proof: [eclipse-theia/theia's code at commit 30a5482](https://github.com/eclipse-theia/theia/tree/30a5482386400715f42b541b4b142fd399ada7f3)

### Which has more GitHub stars, github1s or theia?

github1s, with 23,312 stars; theia has 21,738.

The proof: [conwnet/github1s on GitHub](https://github.com/conwnet/github1s)

### Which has more tests, github1s or theia?

theia, with 773 test files; github1s has 9.

The proof: [eclipse-theia/theia's code at commit 30a5482](https://github.com/eclipse-theia/theia/tree/30a5482386400715f42b541b4b142fd399ada7f3)

### Which was updated more recently, github1s or theia?

theia: its last push was on November 5, 2026, and github1s's on November 4, 2026.

The proof: [eclipse-theia/theia's commits on GitHub](https://github.com/eclipse-theia/theia/commits)

### Which has more commits signed by AI, github1s or theia?

github1s: an AI signed 0.2% of its commits, with GitHub Copilot.

## Sources

- conwnet/github1s: Read on November 4, 2026, at commit 611f051 (https://github.com/conwnet/github1s/tree/611f051651ba7624cf02d7dfca3dda339b244862)
- eclipse-theia/theia: Read on November 5, 2026, at commit 30a5482 (https://github.com/eclipse-theia/theia/tree/30a5482386400715f42b541b4b142fd399ada7f3)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.