Source: https://seerepo.com/compare/huggingface/chat-ui/vs/RocketChat/Rocket.Chat
Markdown source: https://seerepo.com/compare/huggingface/chat-ui/vs/RocketChat/Rocket.Chat.md
Description: chat-ui and Rocket.Chat share 11 technologies: MongoDB, @slack/bolt, polka, marked, katex, file-type, highlight.js, sharp, Zod, pino, and prom-client. Both are written in TypeScript.

# chat-ui vs Rocket.Chat

chat-ui and Rocket.Chat share 11 technologies: MongoDB, @slack/bolt, polka, marked, katex, file-type, highlight.js, sharp, Zod, pino, and prom-client. Both are written in TypeScript.

- [huggingface/chat-ui](https://seerepo.com/r/huggingface/chat-ui): The open source codebase powering HuggingChat
- [RocketChat/Rocket.Chat](https://seerepo.com/r/RocketChat/Rocket.Chat): Interoperable by design. Governed by you. Open-source, secure platform for messaging, voice, video and governed AI, built for defense and government.

## What they share and what sets them apart

- In common: MongoDB, @slack/bolt, polka, marked, katex, file-type, highlight.js, sharp, Zod, pino, prom-client
- Only in chat-ui: SvelteKit, Svelte, bson-objectid, MCP, Hugging Face, OpenAI, Tailwind CSS, bits-ui, web-haptics, openid-client, @aws-sdk/credential-providers, isomorphic-dompurify, @resvg/resvg-js, satori, handlebars, htmlparser2, hyparquet, parquetjs, remend, satori-html
- Only in Rocket.Chat: React, Vite, Hono, Express, bson, ldapjs, aws-sdk, connect-mongo, Google Cloud, localforage, AWS S3, RTM, connect, Moleculer, react-router-dom, mongo-message-queue, Preact, history, GitHub, LiveKit, stylis, React Hook Form, react-aria, react-virtuoso, Chart.js, nivo, virtua, react-error-boundary, codemirror, swagger-ui-express, Swiper, emojibase-data, Passport, @node-oauth/oauth2-server, bcrypt, express-session, generate-password, passport-apple, passport-github2, passport-google-oauth20, passport-oauth2, speakeasy, xml-encryption, dompurify, @xmldom/xmldom, mailparser, nodemailer, csv-parse, exif-be-gone, string-strip-html, @react-pdf/renderer, he, imap, is-svg, json-2-csv, juice, sanitize-html, yaqrcode, Ajv, cron-validator, bugsnag, node-dogstatsd, prometheus-gc-stats, reactflow, @hello-pangea/dnd, @lezer/highlight, rc-scrollbars, react-split-pane, jose, Cheerio, typia, css-mediaquery, style-dictionary, react-stately, @hono/node-server, css-vars-ponyfill, emoji-mart, mdast-util-to-string, remark-parse, remark-stringify, unified, ajv-formats, opentelemetry, @react-aria/visually-hidden, overlayscrollbars-react, overlayscrollbars, re-resizable, @react-aria/toolbar, @livekit/components-react

## Side by side

| | chat-ui | Rocket.Chat |
|---|---|---|
| Size | 179,282 lines written, 657 code files | 948,336 lines written, 8,409 code files |
| Who writes it | 7.5% of its commits signed by AI. With Claude Code, Cursor, and Jules | 1% of its commits signed by AI. With Claude Code, GitHub Copilot, CodeRabbit, Cursor, and Devin |
| Activity | Last push November 12, 2026, 2,325 commits, 11,031 stars | Last push November 13, 2026, 25,153 commits, 46,503 stars |
| Tests | 302 test files. 55.4% of its code files have a test that imports them | 2,110 test files. 18% 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, chat-ui or Rocket.Chat?

Rocket.Chat, with 948,336 lines written; chat-ui has 179,282.

The proof: [RocketChat/Rocket.Chat's code at commit 1290222](https://github.com/RocketChat/Rocket.Chat/tree/12902221714c90a3ba6794a9fc18ace2b3c6fdba)

### Which has more GitHub stars, chat-ui or Rocket.Chat?

Rocket.Chat, with 46,503 stars; chat-ui has 11,031.

The proof: [RocketChat/Rocket.Chat on GitHub](https://github.com/RocketChat/Rocket.Chat)

### Which has more tests, chat-ui or Rocket.Chat?

Rocket.Chat, with 2,110 test files; chat-ui has 302.

The proof: [RocketChat/Rocket.Chat's code at commit 1290222](https://github.com/RocketChat/Rocket.Chat/tree/12902221714c90a3ba6794a9fc18ace2b3c6fdba)

### Which was updated more recently, chat-ui or Rocket.Chat?

Rocket.Chat: its last push was on November 13, 2026, and chat-ui's on November 12, 2026.

The proof: [RocketChat/Rocket.Chat's commits on GitHub](https://github.com/RocketChat/Rocket.Chat/commits)

### Which has more commits signed by AI, chat-ui or Rocket.Chat?

chat-ui: an AI signed 7.5% of its commits, with Claude Code, Cursor, and Jules; in Rocket.Chat, 1%.

The proof: [the commits each tool signed in huggingface/chat-ui](https://seerepo.com/r/huggingface/chat-ui/ai)

## Sources

- huggingface/chat-ui: Read on November 12, 2026, at commit 4e0a95b (https://github.com/huggingface/chat-ui/tree/4e0a95b6a6c80d04d788f1bbad72a1e4713413b9)
- RocketChat/Rocket.Chat: Read on November 13, 2026, at commit 1290222 (https://github.com/RocketChat/Rocket.Chat/tree/12902221714c90a3ba6794a9fc18ace2b3c6fdba)

## 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.