jan vs openui
jan and openui share 14 technologies: React, TanStack, PostHog, Tailwind CSS, Radix UI, Lucide, ai, react-markdown, unist-util-visit, katex, rehype-katex, remark-gfm, remark-math, and Zod. jan is written in Rust and openui in TypeScript.
LinkedInWhat they share and what sets them apart
janhq
jan
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Rust45.5kRead on November 6, 2026, at commit 879e6aeWhat is jan built with?Only in jan
- Tauri
- Hummingbird
- sqlx-sqlite
tauri-plugin-store
- SQLite
- sqlx
- Tokio
- @tauri-apps/api
gio
objc2-app-kit
rusqlite
- Vite
OpenAI- comfy-table
- indicatif
- Ratatui
- console
gtk
- rfd
- ed25519-dalek
- hmac
- keyring
- oauth2
- rmcp
agent-client-protocol
opencv-python
- png
- pulldown-cmark
- zip
- schemars
- log
- env_logger
psutil
- webkit2gtk
- webview2-com
- ash
- calamine
- csv
- html2text
- infer
- pdf-extract
- quick-xml
class-variance-authority
tailwind-merge
sonner
motion
- @streamdown/code
- @tanstack/react-virtual
dnd-kit
emoji-picker-react
- Framer
- react-textarea-autosize
- use-stick-to-bottom
vaul
@tabler/icons-react
ai-sdk
- streamdown
shiki
In common
thesysdev
openui
The Open Standard for Generative UI
TypeScript15kRead on November 8, 2026, at commit 5afae00What is openui built with?Only in openui
- Angular
react-native
- Svelte
- Vue
@assistant-ui/react
@ag-ui/core
- LangChain
- Inquirer
- openid-client
goober
- D3
- d3-shape
react-day-picker
d3-selection
@floating-ui/react-dom
react-syntax-highlighter
remark-breaks
@react-email/components
eve
Side by side
janopenui
SizeLines written by people and agents, without generated ones; code files, without tests.
jan478,180 lines written949 code files
openui280,786 lines written2,122 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
jan0.5% of its commits signed by AIWith GitHub Copilot, Claude Code, Cursor, Factory, Jules, and Aider
openui20.6% of its commits signed by AIWith Claude Code, Devin, Cursor, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
janLast push November 5, 20267,455 commits45,500 stars
openuiLast push November 8, 20261,092 commits14,963 stars
TestsThe files that test the code, and the share of code files a test imports.
jan527 test files48.9% of its code files have a test that imports them
openui155 test files7.4% of its code files have a test that imports them
Frequently asked questions
Which is bigger, jan or openui?
jan, with 478,180 lines written; openui has 280,786.
The proof: janhq/jan's code at commit 879e6ae
Which has more GitHub stars, jan or openui?
jan, with 45,500 stars; openui has 14,963.
The proof: janhq/jan on GitHub
Which has more tests, jan or openui?
jan, with 527 test files; openui has 155.
The proof: janhq/jan's code at commit 879e6ae
Which was updated more recently, jan or openui?
openui: its last push was on November 8, 2026, and jan's on November 5, 2026.
The proof: thesysdev/openui's commits on GitHub
Which has more commits signed by AI, jan or openui?
openui: an AI signed 20.6% of its commits, with Claude Code, Devin, Cursor, and GitHub Copilot; in jan, 0.5%.
See inside your code, today.
Paste your repo and see it drawn, part by part: a medium one in under a minute.
Free, no account.
