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jan vs nuclear

jan and nuclear share 27 technologies: Tauri, sqlx-sqlite, tauri-plugin-store, SQLite, sqlx, Tokio, @tauri-apps/api, Vite, React, TanStack, @tauri-apps/plugin-store, tauri-plugin-dialog, rmcp, zip, schemars, log, tauri-plugin-log, Tailwind CSS, class-variance-authority, tailwind-merge, sonner, Radix UI, motion, dnd-kit, Lucide, Zod, and tauri-apps. jan is written in Rust and nuclear in TypeScript.

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What 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

In common

nukeop

nuclear

Streaming music player that finds free music for you

TypeScript18.9kRead on November 6, 2026, at commit 46d1d93What is nuclear built with?

Only in nuclear

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
jan478,180 lines written949 code files
nuclear95,432 lines written973 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
nuclear0% of its commits signed by AI
ActivityFrom GitHub and its history, on the day SeeRepo read it.
janLast push November 5, 20267,455 commits45,500 stars
nuclearLast push November 6, 20262,197 commits18,876 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
nuclear245 test files21.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, jan or nuclear?
jan, with 478,180 lines written; nuclear has 95,432.

The proof: janhq/jan's code at commit 879e6ae

Which has more GitHub stars, jan or nuclear?
jan, with 45,500 stars; nuclear has 18,876.

The proof: janhq/jan on GitHub

Which has more tests, jan or nuclear?
jan, with 527 test files; nuclear has 245.

The proof: janhq/jan's code at commit 879e6ae

Which was updated more recently, jan or nuclear?
nuclear: its last push was on November 6, 2026, and jan's on November 5, 2026.

The proof: nukeop/nuclear's commits on GitHub

Which has more commits signed by AI, jan or nuclear?
jan: an AI signed 0.5% of its commits, with GitHub Copilot, Claude Code, Cursor, Factory, Jules, and Aider.

The proof: the commits each tool signed in janhq/jan

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