Source: https://seerepo.com/compare/microsoft/autogen/vs/Stirling-Tools/Stirling-PDF
Markdown source: https://seerepo.com/compare/microsoft/autogen/vs/Stirling-Tools/Stirling-PDF.md
Description: autogen and Stirling-PDF share 3 technologies: React, FastAPI, and Postgres. autogen is written in Python and Stirling-PDF in TypeScript.

# autogen vs Stirling-PDF

autogen and Stirling-PDF share 3 technologies: React, FastAPI, and Postgres. autogen is written in Python and Stirling-PDF in TypeScript.

- [microsoft/autogen](https://seerepo.com/r/microsoft/autogen): A programming framework for agentic AI
- [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, FastAPI, Postgres
- Only in autogen: Gatsby, OpenAI, Google
- Only in Stirling-PDF: Vite, Spring, Supabase, Stripe, AWS S3, PostHog

## Side by side

| | autogen | Stirling-PDF |
|---|---|---|
| Size | 186,415 lines written, 763 code files | 1,114,394 lines written, 4,302 code files |
| Who writes it | 0.9% of its commits signed by AI. With GitHub Copilot and Claude Code | 2.1% of its commits signed by AI. With GitHub Copilot, Claude Code, and Codex |
| Activity | Last push October 16, 2026, 3,664 commits, 61,590 stars | Last push October 29, 2026, 5,694 commits, 95,274 stars |
| Tests | 231 test files. 21% 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, autogen or Stirling-PDF?

Stirling-PDF, with 1,114,394 lines written in 4,302 code files; autogen has 186,415 in 763.

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, autogen or Stirling-PDF?

Stirling-PDF, with 95,274 stars; autogen has 61,590.

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

### Which has more tests, autogen or Stirling-PDF?

Stirling-PDF, with 2,014 test files; autogen has 231.

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, autogen or Stirling-PDF?

Stirling-PDF: its last push was on October 29, 2026, and autogen's on October 16, 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, autogen or Stirling-PDF?

Stirling-PDF: an AI signed 2.1% of its commits, with GitHub Copilot, Claude Code, and Codex; in autogen, 0.9%.

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

## Sources

- microsoft/autogen: Read on October 27, 2026, at commit 004749e (https://github.com/microsoft/autogen/tree/004749e6b7102c8fd317b9b1499ce5807223c278)
- 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.