Source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/Stirling-Tools/Stirling-PDF
Markdown source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/Stirling-Tools/Stirling-PDF.md
Description: hello-agents and Stirling-PDF share 4 technologies: Vite, React, FastAPI, and Postgres. hello-agents is written in Python and Stirling-PDF in TypeScript. Side by side: stack, size, who writes it, activity and tests.

# hello-agents vs Stirling-PDF

hello-agents and Stirling-PDF share 4 technologies: Vite, React, FastAPI, and Postgres. hello-agents is written in Python and Stirling-PDF in TypeScript.

- [datawhalechina/hello-agents](https://seerepo.com/r/datawhalechina/hello-agents/built): 📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程
- [Stirling-Tools/Stirling-PDF](https://seerepo.com/r/Stirling-Tools/Stirling-PDF/built): #1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

## Side by side

| | hello-agents | Stirling-PDF |
|---|---|---|
| Stack | Python: Vue, Vite, React, FastAPI, Postgres, Redis, OpenAI | TypeScript: React, Vite, FastAPI, Spring, Supabase, Postgres, Stripe, AWS S3, PostHog |
| Size | 226,666 lines written, 1,268 code files | 1,143,405 lines written, 4,342 code files |
| Who writes it | 2.4% of its commits signed by AI. With Codex, Cursor, and Claude Code | 2.1% of its commits signed by AI. With GitHub Copilot, Claude Code, and Codex |
| Activity | Last push October 13, 2026, 660 commits, 84,924 stars | Last push October 27, 2026, 5,679 commits, 95,111 stars |
| Tests | 97 test files. 6.6% of its code files have a test that imports them | 2,064 test files. 48.8% of its code files have a test that imports them |

## What they share and what sets them apart

- In common: Vite, React, FastAPI, Postgres
- Only in hello-agents: Vue, Redis, OpenAI
- Only in Stirling-PDF: Spring, Supabase, Stripe, AWS S3, PostHog

## Sources

- datawhalechina/hello-agents: Read on October 27, 2026, at commit 36f583c (https://github.com/datawhalechina/hello-agents/tree/36f583c233ea5cee4537ef93455702b55053af18)
- Stirling-Tools/Stirling-PDF: Read on October 27, 2026, at commit cd48ccb (https://github.com/Stirling-Tools/Stirling-PDF/tree/cd48ccb288f66ff884cbb084bf101b875ed7ded7)