Source: https://seerepo.com/compare/langflow-ai/langflow/vs/vercel/next.js
Markdown source: https://seerepo.com/compare/langflow-ai/langflow/vs/vercel/next.js.md
Description: langflow and next.js share 9 technologies: React, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, Framer, Headless UI, cmdk, and Lucide. langflow is written in Python and next.js in JavaScript.

# langflow vs next.js

langflow and next.js share 9 technologies: React, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, Framer, Headless UI, cmdk, and Lucide. langflow is written in Python and next.js in JavaScript.

- [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow): Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
- [vercel/next.js](https://seerepo.com/r/vercel/next.js): The React Framework

## What they share and what sets them apart

- In common: React, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, Framer, Headless UI, cmdk, Lucide
- Only in langflow: FastAPI, pyarrow, oracledb, Redis, Google, OpenAI, uvicorn, AIOHTTP, Vite, react-router-dom, Rich, SQLAlchemy, cryptography, pyjwt, bcrypt, google-auth-oauthlib, firecrawl-py, LangChain, langchain-classic, MCP, exa-py, pillow, defusedxml, pypdf, markitdown, Pydantic, jsonschema, msgspec, validators, psutil, loguru, boto3, xyflow, ag-grid-community, react-hotkeys-hook, use-stick-to-bottom, react-syntax-highlighter, ace-builds, elkjs, react-day-picker, react-error-boundary, react-sortablejs, reactflow, react-icons, @radix-ui/react-icons, react-markdown, remark-gfm, dompurify, rehype-sanitize, rehype-raw
- Only in next.js: Express, concurrent-queue, Tokio, scheduler, Next.js, react-server-dom-webpack, styled-jsx, emotion, PostCSS, geist, MUI, react-virtualized, @heroicons/react, Cheerio, js-yaml, image, sharp, prop-types, Ajv, tracing, tracing-subscriber, OpenTelemetry, pino, next-themes, prompts, Sass

## Side by side

| | langflow | next.js |
|---|---|---|
| Size | 1,446,517 lines written, 3,937 code files | 2,391,614 lines written, 5,697 code files |
| Who writes it | 1.5% of its commits signed by AI. With Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp | 0.8% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and Devin |
| Activity | Last push November 4, 2026, 17,600 commits, 156,316 stars | Last push November 4, 2026, 36,392 commits, 143,262 stars |
| Tests | 3,083 test files. 35.1% of its code files have a test that imports them | 18,587 test files. 6.5% 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 next.js?

next.js, with 2,391,614 lines written; langflow has 1,446,517.

The proof: [vercel/next.js's code at commit 97f1a2c](https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

### Which has more GitHub stars, langflow or next.js?

langflow, with 156,316 stars; next.js has 143,262.

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

### Which has more tests, langflow or next.js?

next.js, with 18,587 test files; langflow has 3,083.

The proof: [vercel/next.js's code at commit 97f1a2c](https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

### Which was updated more recently, langflow or next.js?

Both got their last push on November 4, 2026.

The proof: [vercel/next.js's commits on GitHub](https://github.com/vercel/next.js/commits)

### Which has more commits signed by AI, langflow or next.js?

langflow: an AI signed 1.5% of its commits, with Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp; in next.js, 0.8%.

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

## Sources

- langflow-ai/langflow: Read on November 4, 2026, at commit 60999cc (https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)
- vercel/next.js: Read on November 4, 2026, at commit 97f1a2c (https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

## 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.