# Burp Suite Professional vs ysoserial.net: 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). [ysoserial.net](https://cybersectools.com/tools/ysoserialnet) 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 | ysoserial.net |
|---|---|---|
| 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 | Mid-Market, Enterprise |
| GitHub stars | – | 3,544 |
| Last commit | – | Dec 2024 |
| Company | PortSwigger Ltd. | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Burp Suite Professional | ysoserial.net |
|---|---|---|
| Proxy | Yes | – |
| Scanner | Yes | – |
| .NET | – | Yes |
| Payload Generation | – | 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 small business.
- [ysoserial.net](https://cybersectools.com/tools/ysoserialnet) fits if you need a free product and you want an open-source product.

## Burp Suite Professional vs ysoserial.net FAQ

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

### What is the difference between Burp Suite Professional and ysoserial.net?

**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.

**ysoserial.net**: A payload generator that creates malicious deserialization payloads for testing .NET applications against insecure deserialization vulnerabilities.

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

### Who makes Burp Suite Professional and ysoserial.net?

**Burp Suite Professional** is made by PortSwigger Ltd. **ysoserial.net** is open-source with 3,544 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 ysoserial.net?

Often, yes. Burp Suite Professional and ysoserial.net are both Penetration Testing products. Key differences: Burp Suite Professional is Commercial while ysoserial.net is Free, ysoserial.net 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)
- [ysoserial.net vs XBOW Captcha Bypass Tool](https://cybersectools.com/compare/xbow-captcha-bypass-tool-vs-ysoserialnet)
- [ysoserial.net vs FireCompass AI-powered Pen Testing](https://cybersectools.com/compare/firecompass-ai-powered-pen-testing-vs-ysoserialnet)
- [ysoserial.net vs ImmuniWeb® On-Demand](https://cybersectools.com/compare/immuniwebr-on-demand-vs-ysoserialnet)

## Alternatives to each

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

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

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 ysoserial.net: 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