Source: https://seerepo.com/compare/MHSanaei/3x-ui/vs/Stirling-Tools/Stirling-PDF
Markdown source: https://seerepo.com/compare/MHSanaei/3x-ui/vs/Stirling-Tools/Stirling-PDF.md
Description: 3x-ui and Stirling-PDF share 3 technologies: React, Vite, and Postgres. 3x-ui is written in Go and Stirling-PDF in TypeScript.

# 3x-ui vs Stirling-PDF

3x-ui and Stirling-PDF share 3 technologies: React, Vite, and Postgres. 3x-ui is written in Go and Stirling-PDF in TypeScript.

- [MHSanaei/3x-ui](https://seerepo.com/r/MHSanaei/3x-ui): Supporting multi-protocol multi-user(Vmess, Vless, Trojan, ShadowSocks, Wireguard, Hysteria, Tunnel, Mixed, HTTP, Tun, MTProto، AmneziaWG) 
- [Stirling-Tools/Stirling-PDF](https://seerepo.com/r/Stirling-Tools/Stirling-PDF): #1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

## What they share and what sets them apart

- In common: React, Vite, Postgres
- Only in 3x-ui: Gin
- Only in Stirling-PDF: FastAPI, Spring, Supabase, Stripe, AWS S3, PostHog

## Side by side

| | 3x-ui | Stirling-PDF |
|---|---|---|
| Size | 333,041 lines written, 744 code files | 1,114,394 lines written, 4,302 code files |
| Who writes it | 1.9% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 2.1% of its commits signed by AI. With GitHub Copilot, Claude Code, and Codex |
| Activity | Last push October 25, 2026, 3,710 commits, 48,772 stars | Last push October 29, 2026, 5,694 commits, 95,274 stars |
| Tests | 854 test files. 62.6% of its code files have a test that imports them | 2,014 test files. 48.3% 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, 3x-ui or Stirling-PDF?

Stirling-PDF, with 1,114,394 lines written in 4,302 code files; 3x-ui has 333,041 in 744.

The proof: [Stirling-Tools/Stirling-PDF's code at commit 96ee014](https://github.com/Stirling-Tools/Stirling-PDF/tree/96ee014b99a490822e9b9ea427afd13d76f9e5d4)

### Which has more GitHub stars, 3x-ui or Stirling-PDF?

Stirling-PDF, with 95,274 stars; 3x-ui has 48,772.

The proof: [Stirling-Tools/Stirling-PDF on GitHub](https://github.com/Stirling-Tools/Stirling-PDF)

### Which has more tests, 3x-ui or Stirling-PDF?

Stirling-PDF, with 2,014 test files; 3x-ui has 854.

The proof: [Stirling-Tools/Stirling-PDF's code at commit 96ee014](https://github.com/Stirling-Tools/Stirling-PDF/tree/96ee014b99a490822e9b9ea427afd13d76f9e5d4)

### Which was updated more recently, 3x-ui or Stirling-PDF?

Stirling-PDF: its last push was on October 29, 2026, and 3x-ui's on October 25, 2026.

The proof: [Stirling-Tools/Stirling-PDF's commits on GitHub](https://github.com/Stirling-Tools/Stirling-PDF/commits)

### Which has more commits signed by AI, 3x-ui or Stirling-PDF?

Stirling-PDF: an AI signed 2.1% of its commits, with GitHub Copilot, Claude Code, and Codex; in 3x-ui, 1.9%.

The proof: [the commits each tool signed in Stirling-Tools/Stirling-PDF](https://seerepo.com/r/Stirling-Tools/Stirling-PDF/ai)

## Sources

- MHSanaei/3x-ui: Read on October 28, 2026, at commit c621ba9 (https://github.com/MHSanaei/3x-ui/tree/c621ba9014a6aa21fd7c9ecf45655e44e24ebf13)
- Stirling-Tools/Stirling-PDF: Read on October 29, 2026, at commit 96ee014 (https://github.com/Stirling-Tools/Stirling-PDF/tree/96ee014b99a490822e9b9ea427afd13d76f9e5d4)

## 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.