Source: https://seerepo.com/compare/crewAIInc/crewAI/vs/open-webui/open-webui
Markdown source: https://seerepo.com/compare/crewAIInc/crewAI/vs/open-webui/open-webui.md
Description: crewAI and open-webui share 15 technologies: FastAPI, chromadb, SQLite, OpenAI, pyjwt, cryptography, tiktoken, MCP, beautifulsoup4, pypdf, pillow, python-docx, youtube-transcript-api, openpyxl, and Pydantic. crewAI is written in Python and open-webui in Svelte.

# crewAI vs open-webui

crewAI and open-webui share 15 technologies: FastAPI, chromadb, SQLite, OpenAI, pyjwt, cryptography, tiktoken, MCP, beautifulsoup4, pypdf, pillow, python-docx, youtube-transcript-api, openpyxl, and Pydantic. crewAI is written in Python and open-webui in Svelte.

- [crewAIInc/crewAI](https://seerepo.com/r/crewAIInc/crewAI): Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.
- [open-webui/open-webui](https://seerepo.com/r/open-webui/open-webui): User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

## What they share and what sets them apart

- In common: FastAPI, chromadb, SQLite, OpenAI, pyjwt, cryptography, tiktoken, MCP, beautifulsoup4, pypdf, pillow, python-docx, youtube-transcript-api, openpyxl, Pydantic
- Only in crewAI: aiosqlite, aiocache, lancedb, Rich, Textual, oauthlib, tokenizers, CrewAI, pymupdf, av, pdfplumber, python-magic, opentelemetry-api, OpenTelemetry, opentelemetry-exporter-otlp-proto-http
- Only in open-webui: Svelte, SvelteKit, pgvector, psycopg2-binary, pyarrow, pymysql, weaviate-client, Redis, Postgres, pymilvus, oracledb, pinecone, sql.js, Qdrant, Elasticsearch, Google Cloud Storage, AIOHTTP, uvicorn, Tailwind CSS, @codemirror/theme-one-dark, tiptap, sortablejs, CodeMirror, tippy.js, @floating-ui/dom, three, Chart.js, Mermaid, xterm, SQLAlchemy, azure-identity, bcrypt, rank-bm25, lxml, xlrd, dompurify, marked, xlsx, html-entities, pdfjs-dist, shiki, highlight.js, jspdf, mammoth, yaml, @joplin/turndown-plugin-gfm, heic2any, katex, python-pptx, turndown, psutil, boto3, opentelemetry-instrumentation-httpx, opentelemetry-instrumentation-redis, opentelemetry-instrumentation-sqlalchemy

## Side by side

| | crewAI | open-webui |
|---|---|---|
| Size | 391,316 lines written, 857 code files | 405,584 lines written, 1,123 code files |
| Who writes it | 9.5% of its commits signed by AI. With Claude Code, Devin, Cursor, GitHub Copilot, Aider, and Factory | 1.3% of its commits signed by AI. With Claude Code, Aider, Jules, GitHub Copilot, and Cursor |
| Activity | Last push November 5, 2026, 3,039 commits, 60,522 stars | Last push November 4, 2026, 16,932 commits, 157,730 stars |
| Tests | 511 test files. 11.2% of its code files have a test that imports them | 3 test files. 0.1% 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, crewAI or open-webui?

open-webui, with 405,584 lines written; crewAI has 391,316.

The proof: [open-webui/open-webui's code at commit c38885a](https://github.com/open-webui/open-webui/tree/c38885a1a737da4968f157092f304f3b5481d0bf)

### Which has more GitHub stars, crewAI or open-webui?

open-webui, with 157,730 stars; crewAI has 60,522.

The proof: [open-webui/open-webui on GitHub](https://github.com/open-webui/open-webui)

### Which has more tests, crewAI or open-webui?

crewAI, with 511 test files; open-webui has 3.

The proof: [crewAIInc/crewAI's code at commit 6bd60b2](https://github.com/crewAIInc/crewAI/tree/6bd60b223101a11f7ac675706ff1ebb03314c95d)

### Which was updated more recently, crewAI or open-webui?

crewAI: its last push was on November 5, 2026, and open-webui's on November 4, 2026.

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

### Which has more commits signed by AI, crewAI or open-webui?

crewAI: an AI signed 9.5% of its commits, with Claude Code, Devin, Cursor, GitHub Copilot, Aider, and Factory; in open-webui, 1.3%.

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

## Sources

- crewAIInc/crewAI: Read on November 5, 2026, at commit 6bd60b2 (https://github.com/crewAIInc/crewAI/tree/6bd60b223101a11f7ac675706ff1ebb03314c95d)
- open-webui/open-webui: Read on November 4, 2026, at commit c38885a (https://github.com/open-webui/open-webui/tree/c38885a1a737da4968f157092f304f3b5481d0bf)

## 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.