SeeRepo
Draw my repo

langchainjs vs novu

langchainjs and novu share 8 technologies: Express, MCP, Hono, Zod, prompts, validate-npm-package-name, handlebars, and aws-sdk. Both are written in TypeScript.

Read it as markdown

What they share and what sets them apart

langchain-ai

langchainjs

The agent engineering platform

TypeScript18.3kRead on November 6, 2026, at commit 8103487What is langchainjs built with?

Only in langchainjs

In common

novuhq

novu

The open-source communication infrastructure for agents and products

TypeScript40.3kRead on November 6, 2026, at commit e0d76b7What is novu built with?

Only in novu

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
langchainjs446,312 lines written1,388 code files
novu1,214,443 lines written8,224 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
langchainjs0.6% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
novu8.2% of its commits signed by AIWith Cursor, Claude Code, Devin, GitHub Copilot, and CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
langchainjsLast push November 6, 20267,382 commits18,327 stars
novuLast push November 6, 202616,756 commits40,294 stars
TestsThe files that test the code, and the share of code files a test imports.
langchainjs761 test files37.1% of its code files have a test that imports them
novu1,282 test files16.3% of its code files have a test that imports them

Frequently asked questions

Which is bigger, langchainjs or novu?
novu, with 1,214,443 lines written; langchainjs has 446,312.

The proof: novuhq/novu's code at commit e0d76b7

Which has more GitHub stars, langchainjs or novu?
novu, with 40,294 stars; langchainjs has 18,327.

The proof: novuhq/novu on GitHub

Which has more tests, langchainjs or novu?
novu, with 1,282 test files; langchainjs has 761.

The proof: novuhq/novu's code at commit e0d76b7

Which was updated more recently, langchainjs or novu?
Both got their last push on November 6, 2026.

The proof: novuhq/novu's commits on GitHub

Which has more commits signed by AI, langchainjs or novu?
novu: an AI signed 8.2% of its commits, with Cursor, Claude Code, Devin, GitHub Copilot, and CodeRabbit; in langchainjs, 0.6%.

The proof: the commits each tool signed in novuhq/novu

See inside your code, today.

Paste your repo and see it drawn, part by part: a medium one in under a minute.

Free, no account.

Or look inside SeeRepo's own →