Source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/unclecode/crawl4ai
Markdown source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/unclecode/crawl4ai.md
Description: hello-agents and crawl4ai share 16 technologies: FastAPI, uvicorn, aiosqlite, Redis, SQLite, anyio, AIOHTTP, Rich, MCP, rank-bm25, lxml, pypdf, pillow, beautifulsoup4, email-validator, and Pydantic. Both are written in Python.

# hello-agents vs crawl4ai

hello-agents and crawl4ai share 16 technologies: FastAPI, uvicorn, aiosqlite, Redis, SQLite, anyio, AIOHTTP, Rich, MCP, rank-bm25, lxml, pypdf, pillow, beautifulsoup4, email-validator, and Pydantic. Both are written in Python.

- [datawhalechina/hello-agents](https://seerepo.com/r/datawhalechina/hello-agents): 📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程
- [unclecode/crawl4ai](https://seerepo.com/r/unclecode/crawl4ai): Official Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents. Free API key, 1,000 credits a month, no card. Fully open source: this repo is the Apache-2.0 crawler that powers it, and you can self-host it.

## What they share and what sets them apart

- In common: FastAPI, uvicorn, aiosqlite, Redis, SQLite, anyio, AIOHTTP, Rich, MCP, rank-bm25, lxml, pypdf, pillow, beautifulsoup4, email-validator, Pydantic
- Only in hello-agents: asyncpg, psycopg2-binary, Postgres, chromadb, oracledb, pymilvus, OpenAI, Qdrant, Hugging Face, Flask, fastmcp, starlette, Streamlit, Vite, Vue, vue-router, React, react-router-dom, cycler, fonttools, contourpy, Plotly, Gradio, matplotlib, alembic, SQLAlchemy, bcrypt, accelerate, onnxruntime, peft, safetensors, tavily-python, tokenizers, torch, transformers, scikit-learn, sentence-transformers, tiktoken, datasets, langchain-openai, LangGraph, paddlenlp, spaCy, markdown, openpyxl, pdfminer.six, python-docx, reportlab, xlrd, pdfplumber, feedparser, pymupdf, jinja2, annotated-types, pydantic-core, jsonschema, OpenTelemetry, opentelemetry-exporter-otlp-proto-grpc, loguru, D3, katex, Tailwind CSS, markdown-it, vue-flow, Chart.js, vue-chartjs, highlight.js, dompurify, marked, react-markdown, Element, echarts, Leaflet, Mermaid, html2canvas, jspdf
- Only in crawl4ai: pyjwt, Gunicorn, psutil, prometheus-fastapi-instrumentator

## Side by side

| | hello-agents | crawl4ai |
|---|---|---|
| Size | 226,661 lines written, 1,212 code files | 176,861 lines written, 105 code files |
| Who writes it | 2.4% of its commits signed by AI. With Codex, Cursor, and Claude Code | 4.4% of its commits signed by AI. With Claude Code, Factory, Cursor, CodeRabbit, and Devin |
| Activity | Last push October 13, 2026, 660 commits, 86,039 stars | Last push November 4, 2026, 1,446 commits, 86,895 stars |
| Tests | 97 test files. 6.9% of its code files have a test that imports them | 286 test files. 56.2% 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, hello-agents or crawl4ai?

hello-agents, with 226,661 lines written; crawl4ai has 176,861.

The proof: [datawhalechina/hello-agents's code at commit 36f583c](https://github.com/datawhalechina/hello-agents/tree/36f583c233ea5cee4537ef93455702b55053af18)

### Which has more GitHub stars, hello-agents or crawl4ai?

crawl4ai, with 86,895 stars; hello-agents has 86,039.

The proof: [unclecode/crawl4ai on GitHub](https://github.com/unclecode/crawl4ai)

### Which has more tests, hello-agents or crawl4ai?

crawl4ai, with 286 test files; hello-agents has 97.

The proof: [unclecode/crawl4ai's code at commit cae74b2](https://github.com/unclecode/crawl4ai/tree/cae74b203a33994f7e13b9052c3b0d5c93daa0e6)

### Which was updated more recently, hello-agents or crawl4ai?

crawl4ai: its last push was on November 4, 2026, and hello-agents's on October 13, 2026.

The proof: [unclecode/crawl4ai's commits on GitHub](https://github.com/unclecode/crawl4ai/commits)

### Which has more commits signed by AI, hello-agents or crawl4ai?

crawl4ai: an AI signed 4.4% of its commits, with Claude Code, Factory, Cursor, CodeRabbit, and Devin; in hello-agents, 2.4%.

The proof: [the commits each tool signed in unclecode/crawl4ai](https://seerepo.com/r/unclecode/crawl4ai/ai)

## Sources

- datawhalechina/hello-agents: Read on November 4, 2026, at commit 36f583c (https://github.com/datawhalechina/hello-agents/tree/36f583c233ea5cee4537ef93455702b55053af18)
- unclecode/crawl4ai: Read on November 4, 2026, at commit cae74b2 (https://github.com/unclecode/crawl4ai/tree/cae74b203a33994f7e13b9052c3b0d5c93daa0e6)

## 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.