# Arjun vs NodeZero: side-by-side comparison (2026)

[Arjun](https://cybersectools.com/tools/arjun) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution. [NodeZero](https://cybersectools.com/tools/nodezero) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [Horizon3.ai](https://cybersectools.com/companies/horizon3ai). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Arjun | NodeZero |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Penetration Testing | Penetration Testing |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 5,842 | – |
| Last commit | Feb 2025 | – |
| Company | – | Horizon3.ai |
| Headquarters | – | – |

### Use cases and capabilities

| | Arjun | NodeZero |
|---|---|---|
| Security Research | Yes | – |
| Active Directory | – | Yes |
| Attack Paths | – | Yes |
| Kubernetes | – | Yes |
| AI Pentesting | – | Yes |

### Core features

**Arjun**

No features listed.

**NodeZero**

10 features listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Arjun](https://cybersectools.com/tools/arjun) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product.
- [NodeZero](https://cybersectools.com/tools/nodezero) fits if you want a cloud product.

## Arjun vs NodeZero FAQ

Common questions when comparing Arjun vs NodeZero for penetration testing.

### What is the difference between Arjun and NodeZero?

**Arjun**: HTTP parameter discovery suite.

**NodeZero**: Autonomous pentesting platform for internal, external, cloud & K8s testing. Built by Horizon3.ai.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Arjun and NodeZero?

**Arjun** is open-source with 5,842 GitHub stars. **NodeZero** is made by Horizon3.ai. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Arjun a good alternative to NodeZero?

Often, yes. Arjun and NodeZero are both Penetration Testing products. Key differences: Arjun is Free while NodeZero is Commercial, Arjun is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Arjun vs CodeWall AI-Powered Pentesting](https://cybersectools.com/compare/arjun-vs-codewall-ai-powered-pentesting)
- [Arjun vs Ironwood Cyber Enlight](https://cybersectools.com/compare/arjun-vs-ironwood-cyber-enlight)
- [Arjun vs Tolmo](https://cybersectools.com/compare/arjun-vs-tolmo)
- [NodeZero vs CodeWall AI-Powered Pentesting](https://cybersectools.com/compare/codewall-ai-powered-pentesting-vs-nodezero)
- [NodeZero vs Ironwood Cyber Enlight](https://cybersectools.com/compare/ironwood-cyber-enlight-vs-nodezero)
- [NodeZero vs Tolmo](https://cybersectools.com/compare/nodezero-vs-tolmo)

## Alternatives to each

- [See all Arjun alternatives](https://cybersectools.com/alternatives/arjun)
- [See all NodeZero alternatives](https://cybersectools.com/alternatives/nodezero)

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Source: https://cybersectools.com/compare/arjun-vs-nodezero

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/arjun.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Arjun and NodeZero: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md