Source: https://seerepo.com/compare/n8n-io/n8n/vs/openai/codex-security
Markdown source: https://seerepo.com/compare/n8n-io/n8n/vs/openai/codex-security.md
Description: n8n and codex-security share 5 technologies: MCP, yaml, Zod, Ajv, and pdfjs-dist. Both are written in TypeScript.

# n8n vs codex-security

n8n and codex-security share 5 technologies: MCP, yaml, Zod, Ajv, and pdfjs-dist. Both are written in TypeScript.

- [n8n-io/n8n](https://seerepo.com/r/n8n-io/n8n): Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
- [openai/codex-security](https://seerepo.com/r/openai/codex-security): OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-security

## What they share and what sets them apart

- In common: MCP, yaml, Zod, Ajv, pdfjs-dist
- Only in n8n: Postgres, Supabase, Anthropic, OpenAI, Vite, Redis, Express, Vue, vue-router, MongoDB, SQLite, lru-cache, Sentry, PostHog, MySQL, Kafka, ai, @ai-sdk/provider-utils, opentelemetry, LangChain, pdf-parse, @joplin/turndown-plugin-gfm, @mozilla/readability, turndown, xss, validator, logform, winston, jose, jsonwebtoken, CodeMirror, @lezer/highlight, class-validator, linkedom, mammoth, @clack/prompts, @aws-sdk/credential-providers, epub2, Cheerio, html-to-text, sanitize-html, bcryptjs, otpauth, file-type, nodemailer, class-transformer, highlight.js, markdown-it, tiptap, vuedraggable, Chart.js, katex, rss-parser
- Only in codex-security: React, Linear, GitHub, rfc3339-validator, rfc3986-validator, @openai/codex-sdk, ink, Inquirer, js-tiktoken, papaparse, saxes

## Side by side

| | n8n | codex-security |
|---|---|---|
| Size | 5,241,398 lines written, 14,224 code files | 568,957 lines written, 393 code files |
| Who writes it | 14.4% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and CodeRabbit | 2.1% of its commits signed by AI. With Codex, Claude Code, Cursor, and GitHub Copilot |
| Activity | Last push November 4, 2026, 26,047 commits, 209,517 stars | Last push November 12, 2026, 2,044 commits, 11,854 stars |
| Tests | 10,704 test files. 53.7% of its code files have a test that imports them | 611 test files. 71% 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, n8n or codex-security?

n8n, with 5,241,398 lines written; codex-security has 568,957.

The proof: [n8n-io/n8n's code at commit d5e7db2](https://github.com/n8n-io/n8n/tree/d5e7db2bf57dbc06e65648cdbec7f5db6b91bedc)

### Which has more GitHub stars, n8n or codex-security?

n8n, with 209,517 stars; codex-security has 11,854.

The proof: [n8n-io/n8n on GitHub](https://github.com/n8n-io/n8n)

### Which has more tests, n8n or codex-security?

n8n, with 10,704 test files; codex-security has 611.

The proof: [n8n-io/n8n's code at commit d5e7db2](https://github.com/n8n-io/n8n/tree/d5e7db2bf57dbc06e65648cdbec7f5db6b91bedc)

### Which was updated more recently, n8n or codex-security?

codex-security: its last push was on November 12, 2026, and n8n's on November 4, 2026.

The proof: [openai/codex-security's commits on GitHub](https://github.com/openai/codex-security/commits)

### Which has more commits signed by AI, n8n or codex-security?

n8n: an AI signed 14.4% of its commits, with Claude Code, Cursor, GitHub Copilot, Codex, and CodeRabbit; in codex-security, 2.1%.

The proof: [the commits each tool signed in n8n-io/n8n](https://seerepo.com/r/n8n-io/n8n/ai)

## Sources

- n8n-io/n8n: Read on November 4, 2026, at commit d5e7db2 (https://github.com/n8n-io/n8n/tree/d5e7db2bf57dbc06e65648cdbec7f5db6b91bedc)
- openai/codex-security: Read on November 12, 2026, at commit 2911786 (https://github.com/openai/codex-security/tree/2911786f243f08fd61ad854f5c527e7b0c404ccc)

## 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.