# Burp Suite Professional vs RsaCtfTool: side-by-side comparison (2026)

[Burp Suite Professional](https://cybersectools.com/tools/burp-suite-professional) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [PortSwigger Ltd](https://cybersectools.com/companies/portswigger-ltd). [RsaCtfTool](https://cybersectools.com/tools/rsactftool) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Burp Suite Professional | RsaCtfTool |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Penetration Testing | Penetration Testing |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB |
| GitHub stars | – | 6,830 |
| Last commit | – | Mar 2026 |
| Company | PortSwigger Ltd. | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Burp Suite Professional | RsaCtfTool |
|---|---|---|
| Proxy | Yes | – |
| Scanner | Yes | – |
| CTF | – | Yes |
| Education | – | Yes |

## Which one fits you

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

- [Burp Suite Professional](https://cybersectools.com/tools/burp-suite-professional) fits if you are a mid-market company or an enterprise.
- [RsaCtfTool](https://cybersectools.com/tools/rsactftool) fits if you are a startup, you need a free product and you want an open-source product.

## Burp Suite Professional vs RsaCtfTool FAQ

Common questions when comparing Burp Suite Professional vs RsaCtfTool for penetration testing.

### What is the difference between Burp Suite Professional and RsaCtfTool?

**Burp Suite Professional**: A web application security testing platform that combines manual and automated testing tools for conducting comprehensive security assessments and penetration testing, built by PortSwigger Ltd.

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

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

### Who makes Burp Suite Professional and RsaCtfTool?

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

### Is Burp Suite Professional a good alternative to RsaCtfTool?

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

## Related comparisons

- [Burp Suite Professional vs XBOW Captcha Bypass Tool](https://cybersectools.com/compare/burp-suite-professional-vs-xbow-captcha-bypass-tool)
- [Burp Suite Professional vs FireCompass AI-powered Pen Testing](https://cybersectools.com/compare/burp-suite-professional-vs-firecompass-ai-powered-pen-testing)
- [Burp Suite Professional vs ImmuniWeb® On-Demand](https://cybersectools.com/compare/burp-suite-professional-vs-immuniwebr-on-demand)
- [RsaCtfTool vs XBOW Captcha Bypass Tool](https://cybersectools.com/compare/rsactftool-vs-xbow-captcha-bypass-tool)
- [RsaCtfTool vs FireCompass AI-powered Pen Testing](https://cybersectools.com/compare/firecompass-ai-powered-pen-testing-vs-rsactftool)
- [RsaCtfTool vs ImmuniWeb® On-Demand](https://cybersectools.com/compare/immuniwebr-on-demand-vs-rsactftool)

## Alternatives to each

- [See all Burp Suite Professional alternatives](https://cybersectools.com/alternatives/burp-suite-professional)
- [See all RsaCtfTool alternatives](https://cybersectools.com/alternatives/rsactftool)

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Source: https://cybersectools.com/compare/burp-suite-professional-vs-rsactftool

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

More on Burp Suite Professional and RsaCtfTool: 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