Source: https://seerepo.com/compare/langflow-ai/langflow/vs/PrefectHQ/prefect
Markdown source: https://seerepo.com/compare/langflow-ai/langflow/vs/PrefectHQ/prefect.md
Description: langflow and prefect share 24 technologies: FastAPI, Redis, uvicorn, AIOHTTP, Vite, React, Rich, SQLAlchemy, cryptography, Pydantic, jsonschema, boto3, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, cmdk, react-day-picker, Lucide, @radix-ui/react-icons, react-markdown, remark-gfm, rehype-sanitize, and rehype-raw. Both are written in Python.

# langflow vs prefect

langflow and prefect share 24 technologies: FastAPI, Redis, uvicorn, AIOHTTP, Vite, React, Rich, SQLAlchemy, cryptography, Pydantic, jsonschema, boto3, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, cmdk, react-day-picker, Lucide, @radix-ui/react-icons, react-markdown, remark-gfm, rehype-sanitize, and rehype-raw. Both are written in Python.

- [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow): Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
- [PrefectHQ/prefect](https://seerepo.com/r/PrefectHQ/prefect): Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

## What they share and what sets them apart

- In common: FastAPI, Redis, uvicorn, AIOHTTP, Vite, React, Rich, SQLAlchemy, cryptography, Pydantic, jsonschema, boto3, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, cmdk, react-day-picker, Lucide, @radix-ui/react-icons, react-markdown, remark-gfm, rehype-sanitize, rehype-raw
- Only in langflow: pyarrow, oracledb, Google, OpenAI, react-router-dom, pyjwt, bcrypt, google-auth-oauthlib, firecrawl-py, LangChain, langchain-classic, MCP, exa-py, pillow, defusedxml, pypdf, markitdown, msgspec, validators, psutil, loguru, xyflow, ag-grid-community, Framer, react-hotkeys-hook, use-stick-to-bottom, react-syntax-highlighter, ace-builds, Headless UI, elkjs, react-error-boundary, react-sortablejs, reactflow, react-icons, dompurify
- Only in prefect: aiosqlite, Postgres, SQLite, starlette, Ray, @tanstack/react-router, Vue, vue-router, alembic, azure-identity, jinja2, OpenTelemetry, docker, prometheus-client, next-themes, sonner, React Hook Form, tanstack, recharts, @uiw/react-codemirror, codemirror, dnd-kit, GSAP, Mermaid, Zod, @hookform/resolvers

## Side by side

| | langflow | prefect |
|---|---|---|
| Size | 1,446,517 lines written, 3,937 code files | 945,152 lines written, 2,114 code files |
| Who writes it | 1.5% of its commits signed by AI. With Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp | 9.7% of its commits signed by AI. With Devin, Claude Code, Codex, GitHub Copilot, and Cursor |
| Activity | Last push November 4, 2026, 17,600 commits, 156,316 stars | Last push November 4, 2026, 18,695 commits, 24,112 stars |
| Tests | 3,083 test files. 35.1% of its code files have a test that imports them | 1,242 test files. 26.9% 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, langflow or prefect?

langflow, with 1,446,517 lines written; prefect has 945,152.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

### Which has more GitHub stars, langflow or prefect?

langflow, with 156,316 stars; prefect has 24,112.

The proof: [langflow-ai/langflow on GitHub](https://github.com/langflow-ai/langflow)

### Which has more tests, langflow or prefect?

langflow, with 3,083 test files; prefect has 1,242.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

### Which was updated more recently, langflow or prefect?

Both got their last push on November 4, 2026.

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

### Which has more commits signed by AI, langflow or prefect?

prefect: an AI signed 9.7% of its commits, with Devin, Claude Code, Codex, GitHub Copilot, and Cursor; in langflow, 1.5%.

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

## Sources

- langflow-ai/langflow: Read on November 4, 2026, at commit 60999cc (https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)
- PrefectHQ/prefect: Read on November 4, 2026, at commit 60d9ea5 (https://github.com/PrefectHQ/prefect/tree/60d9ea54535ee10be2e7481fd1d930815c87b649)

## 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.