Source: https://seerepo.com/compare/langflow-ai/langflow/vs/reflex-dev/reflex
Markdown source: https://seerepo.com/compare/langflow-ai/langflow/vs/reflex-dev/reflex.md
Description: langflow and reflex share 6 technologies: Redis, React, Rich, SQLAlchemy, psutil, and Tailwind CSS. Both are written in Python.

# langflow vs reflex

langflow and reflex share 6 technologies: Redis, React, Rich, SQLAlchemy, psutil, and Tailwind CSS. 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.
- [reflex-dev/reflex](https://seerepo.com/r/reflex-dev/reflex): 🕸️ Web apps in pure Python 🐍

## What they share and what sets them apart

- In common: Redis, React, Rich, SQLAlchemy, psutil, Tailwind CSS
- Only in langflow: FastAPI, pyarrow, oracledb, Google, OpenAI, uvicorn, AIOHTTP, Vite, react-router-dom, cryptography, pyjwt, bcrypt, google-auth-oauthlib, firecrawl-py, LangChain, langchain-classic, MCP, exa-py, pillow, defusedxml, pypdf, markitdown, Pydantic, jsonschema, msgspec, validators, loguru, boto3, class-variance-authority, tailwind-merge, xyflow, Radix UI, ag-grid-community, Framer, react-hotkeys-hook, use-stick-to-bottom, react-syntax-highlighter, ace-builds, Headless UI, cmdk, elkjs, react-day-picker, react-error-boundary, react-sortablejs, reactflow, Lucide, react-icons, @radix-ui/react-icons, react-markdown, remark-gfm, dompurify, rehype-sanitize, rehype-raw
- Only in reflex: starlette, granian, hugeicons, email-validator, OpenTelemetry, opentelemetry-instrumentation, opentelemetry-instrumentation-asgi

## Side by side

| | langflow | reflex |
|---|---|---|
| Size | 1,446,517 lines written, 3,937 code files | 402,435 lines written, 647 code files |
| Who writes it | 1.5% of its commits signed by AI. With Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp | 8.1% of its commits signed by AI. With Claude Code, Devin, GitHub Copilot, and Cursor |
| Activity | Last push November 4, 2026, 17,600 commits, 156,316 stars | Last push November 8, 2026, 3,835 commits, 29,000 stars |
| Tests | 3,083 test files. 35.1% of its code files have a test that imports them | 605 test files. 17.5% 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 reflex?

langflow, with 1,446,517 lines written; reflex has 402,435.

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 reflex?

langflow, with 156,316 stars; reflex has 29,000.

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

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

langflow, with 3,083 test files; reflex has 605.

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 reflex?

reflex: its last push was on November 8, 2026, and langflow's on November 4, 2026.

The proof: [reflex-dev/reflex's commits on GitHub](https://github.com/reflex-dev/reflex/commits)

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

reflex: an AI signed 8.1% of its commits, with Claude Code, Devin, GitHub Copilot, and Cursor; in langflow, 1.5%.

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

## Sources

- langflow-ai/langflow: Read on November 4, 2026, at commit 60999cc (https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)
- reflex-dev/reflex: Read on November 8, 2026, at commit 0bc8a45 (https://github.com/reflex-dev/reflex/tree/0bc8a45550a10709310329aaf989eb45cf327d32)

## 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.