BrowserOS vs ui

BrowserOS and ui share 23 technologies: SQLite, Vite, React, React Router, MCP, Tailwind CSS, class-variance-authority, Base UI, React Hook Form, motion, Lucide, next-themes, Radix UI, sonner, cmdk, embla-carousel-react, react-resizable-panels, ai, @ai-sdk/react, shiki, streamdown, Zod, and @tabler/icons-react. BrowserOS is written in Rust and ui in TypeScript.

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What they share and what sets them apart

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
BrowserOS488,794 lines written1,541 code files
ui636,360 lines written3,888 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.
BrowserOS4.5% of its commits signed by AIWith Claude Code
ui2.9% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, Codex, and Devin
ActivityFrom GitHub and its history, on the day SeeRepo read it.
BrowserOSLast push November 9, 20264,072 commits14,288 stars
uiLast push November 8, 20262,308 commits127,657 stars
TestsThe files that test the code, and the share of code files a test imports.
BrowserOS584 test files32.8% of its code files have a test that imports them
ui415 test files3.8% of its code files have a test that imports them

Frequently asked questions

Which is bigger, BrowserOS or ui?
ui, with 636,360 lines written; BrowserOS has 488,794.

The proof: shadcn-ui/ui's code at commit 8ab2771

Which has more GitHub stars, BrowserOS or ui?
ui, with 127,657 stars; BrowserOS has 14,288.

The proof: shadcn-ui/ui on GitHub

Which has more tests, BrowserOS or ui?
BrowserOS, with 584 test files; ui has 415.

The proof: browseros-ai/BrowserOS's code at commit 9f66ec8

Which was updated more recently, BrowserOS or ui?
BrowserOS: its last push was on November 9, 2026, and ui's on November 8, 2026.

The proof: browseros-ai/BrowserOS's commits on GitHub

Which has more commits signed by AI, BrowserOS or ui?
BrowserOS: an AI signed 4.5% of its commits, with Claude Code; in ui, 2.9%.

The proof: the commits each tool signed in browseros-ai/BrowserOS

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