jan vs leon
jan and leon share 7 technologies: SQLite, Vite, React, @tanstack/react-virtual, ai, ai-sdk, and shiki. jan is written in Rust and leon 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
- sqlx
- Tokio
- @tauri-apps/api
gio
objc2-app-kit
rusqlite
- TanStack
PostHog
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
- Tailwind CSS
class-variance-authority
tailwind-merge
sonner
- Radix UI
motion
- @streamdown/code
dnd-kit
emoji-picker-react
- Framer
- react-textarea-autosize
- use-stick-to-bottom
vaul
- Lucide
@tabler/icons-react
- streamdown
- react-markdown
- unist-util-visit
katex
rehype-katex
remark-gfm
- Zod
In common
leon-ai
leon
🧠 Leon is your open-source personal assistant.
TypeScript17.6kRead on November 6, 2026, at commit f5795bdWhat is leon built with?Only in leon
- @tanstack/react-router
- Hugging Face
- Fastify
@fontsource/jetbrains-mono
@ark-ui/react
- @pierre/highlights
- cli-spinner
- remixicon
- jose
- transformers
- node-llama-cpp
- faster-whisper
- g2p-en
- OpenRouter
- beautifulsoup4
yaml
@sinclair/typebox
- Ajv
- ajv-formats
Side by side
janleon
SizeLines written by people and agents, without generated ones; code files, without tests.
jan478,180 lines written949 code files
leon225,418 lines written800 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
leon0% 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
leonLast push November 6, 20263,130 commits17,646 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
leon182 test files26.4% of its code files have a test that imports them
Frequently asked questions
Which is bigger, jan or leon?
jan, with 478,180 lines written; leon has 225,418.
The proof: janhq/jan's code at commit 879e6ae
Which has more GitHub stars, jan or leon?
jan, with 45,500 stars; leon has 17,646.
The proof: janhq/jan on GitHub
Which has more tests, jan or leon?
jan, with 527 test files; leon has 182.
The proof: janhq/jan's code at commit 879e6ae
Which was updated more recently, jan or leon?
leon: its last push was on November 6, 2026, and jan's on November 5, 2026.
The proof: leon-ai/leon's commits on GitHub
Which has more commits signed by AI, jan or leon?
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
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.
