# RsaCtfTool vs StealthNet AI: side-by-side comparison (2026)

[RsaCtfTool](https://cybersectools.com/tools/rsactftool) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution. [StealthNet AI](https://cybersectools.com/tools/stealthnet-ai) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [StealthNet AI](https://cybersectools.com/companies/stealthnet-ai). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | RsaCtfTool | StealthNet AI |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Penetration Testing | Penetration Testing |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB | Mid-Market, SMB, Startup |
| GitHub stars | 6,830 | – |
| Last commit | Mar 2026 | – |
| Company | – | StealthNet AI |
| Headquarters | – | – |

### Use cases and capabilities

| | RsaCtfTool | StealthNet AI |
|---|---|---|
| CTF | Yes | – |
| Education | Yes | – |
| AI Pentesting | – | Yes |
| Agentic AI Security | – | Yes |
| Penetration Testing Framework | – | Yes |
| Reconnaissance | – | Yes |
| Dark Web Monitoring | – | Yes |
| Red Team | – | Yes |
| VAPT | – | Yes |
| Social Engineering | – | Yes |
| Security Reporting | – | Yes |
| AI Compliance | – | Yes |

### Core features

**RsaCtfTool**

No features listed.

**StealthNet AI**

9 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.

- [RsaCtfTool](https://cybersectools.com/tools/rsactftool) fits if you need to run it on your own servers, you need a free product and you want an open-source product.
- [StealthNet AI](https://cybersectools.com/tools/stealthnet-ai) fits if you want a cloud product and you are a mid-market company.

## RsaCtfTool vs StealthNet AI FAQ

Common questions when comparing RsaCtfTool vs StealthNet AI for penetration testing.

### What is the difference between RsaCtfTool and StealthNet AI?

**RsaCtfTool**: A utility that attempts to decrypt data from weak RSA public keys and recover private keys using multiple integer factorization algorithms.

**StealthNet AI**: AI agent fleet for autonomous pentesting across external, API, web & vishing surfaces, built by StealthNet AI.

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

### Who makes RsaCtfTool and StealthNet AI?

**RsaCtfTool** is open-source with 6,830 GitHub stars. **StealthNet AI** is made by StealthNet AI. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is RsaCtfTool a good alternative to StealthNet AI?

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

## Related comparisons

- [RsaCtfTool vs Plainsea Agentic Penetration Testing Platform](https://cybersectools.com/compare/plainsea-agentic-penetration-testing-platform-vs-rsactftool)
- [RsaCtfTool vs AgentRidge](https://cybersectools.com/compare/agentridge-vs-rsactftool)
- [RsaCtfTool vs Parameter Pentesting](https://cybersectools.com/compare/parameter-pentesting-vs-rsactftool)
- [StealthNet AI vs Plainsea Agentic Penetration Testing Platform](https://cybersectools.com/compare/plainsea-agentic-penetration-testing-platform-vs-stealthnet-ai)
- [StealthNet AI vs AgentRidge](https://cybersectools.com/compare/agentridge-vs-stealthnet-ai)
- [StealthNet AI vs Parameter Pentesting](https://cybersectools.com/compare/parameter-pentesting-vs-stealthnet-ai)

## Alternatives to each

- [See all RsaCtfTool alternatives](https://cybersectools.com/alternatives/rsactftool)
- [See all StealthNet AI alternatives](https://cybersectools.com/alternatives/stealthnet-ai)

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Source: https://cybersectools.com/compare/rsactftool-vs-stealthnet-ai

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

More on RsaCtfTool and StealthNet AI: 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