Source: https://seerepo.com/compare/langchain-ai/langchainjs/vs/ruvnet/ruflo
Markdown source: https://seerepo.com/compare/langchain-ai/langchainjs/vs/ruvnet/ruflo.md
Description: langchainjs and ruflo share 7 technologies: Express, MCP, Zod, handlebars, js-yaml, yaml, and jose. Both are written in TypeScript.

# langchainjs vs ruflo

langchainjs and ruflo share 7 technologies: Express, MCP, Zod, handlebars, js-yaml, yaml, and jose. Both are written in TypeScript.

- [langchain-ai/langchainjs](https://seerepo.com/r/langchain-ai/langchainjs): The agent engineering platform
- [ruvnet/ruflo](https://seerepo.com/r/ruvnet/ruflo): 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, federation, vector RAG integration, and native Claude Code / Codex / Hermes and many more Integrated

## What they share and what sets them apart

- In common: Express, MCP, Zod, handlebars, js-yaml, yaml, jose
- Only in langchainjs: Hono, bson, @pinecone-database/pinecone, weaviate-client, prompts, validate-npm-package-name, TypeORM, langsmith, Cheerio, js-tiktoken, mustache, @cfworker/json-schema, @standard-schema/spec, @langchain/langgraph, langchain, @hono/node-server, @aws-sdk/credential-provider-node, aws-sdk, @aws-sdk/types, cohere-ai, groq-sdk, ollama, @azure/identity
- Only in ruflo: sql.js, Google Cloud, Svelte, SvelteKit, MongoDB, Postgres, Hugging Face, OpenAI, Tokio, SQLite, Vite, React, react-router-dom, Supabase, Tailwind CSS, bits-ui, web-haptics, marked, katex, file-type, highlight.js, htmlparser2, isomorphic-dompurify, satori, sharp, pino, prom-client, helmet, Ajv, tracing, @xenova/transformers, hmac, bcryptjs, class-variance-authority, next-themes, tailwind-merge, Radix UI, cmdk, embla-carousel-react, input-otp, React Hook Form, react-day-picker, react-resizable-panels, reactflow, recharts, sonner, vaul, Lucide

## Side by side

| | langchainjs | ruflo |
|---|---|---|
| Size | 446,312 lines written, 1,388 code files | 1,153,806 lines written, 2,525 code files |
| Who writes it | 0.6% of its commits signed by AI. With Claude Code, Cursor, and GitHub Copilot | 35.9% of its commits signed by AI. With Claude Code and Codex |
| Activity | Last push November 6, 2026, 7,382 commits, 18,327 stars | Last push November 4, 2026, 9,037 commits, 80,870 stars |
| Tests | 761 test files. 37.1% of its code files have a test that imports them | 1,805 test files. 49.3% 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, langchainjs or ruflo?

ruflo, with 1,153,806 lines written; langchainjs has 446,312.

The proof: [ruvnet/ruflo's code at commit 1c0d63c](https://github.com/ruvnet/ruflo/tree/1c0d63c79aa2879d7029cc793501d7086d06f124)

### Which has more GitHub stars, langchainjs or ruflo?

ruflo, with 80,870 stars; langchainjs has 18,327.

The proof: [ruvnet/ruflo on GitHub](https://github.com/ruvnet/ruflo)

### Which has more tests, langchainjs or ruflo?

ruflo, with 1,805 test files; langchainjs has 761.

The proof: [ruvnet/ruflo's code at commit 1c0d63c](https://github.com/ruvnet/ruflo/tree/1c0d63c79aa2879d7029cc793501d7086d06f124)

### Which was updated more recently, langchainjs or ruflo?

langchainjs: its last push was on November 6, 2026, and ruflo's on November 4, 2026.

The proof: [langchain-ai/langchainjs's commits on GitHub](https://github.com/langchain-ai/langchainjs/commits)

### Which has more commits signed by AI, langchainjs or ruflo?

ruflo: an AI signed 35.9% of its commits, with Claude Code and Codex; in langchainjs, 0.6%.

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

## Sources

- langchain-ai/langchainjs: Read on November 6, 2026, at commit 8103487 (https://github.com/langchain-ai/langchainjs/tree/8103487c55784c5befd84c1bc803546f720f806e)
- ruvnet/ruflo: Read on November 4, 2026, at commit 1c0d63c (https://github.com/ruvnet/ruflo/tree/1c0d63c79aa2879d7029cc793501d7086d06f124)

## 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.