# PortSwigger vs VulnSign Dynamic Application Security Testing: side-by-side comparison (2026) [PortSwigger](https://cybersectools.com/tools/portswigger) is a free [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [PortSwigger Ltd](https://cybersectools.com/companies/portswigger-ltd). [VulnSign Dynamic Application Security Testing](https://cybersectools.com/tools/vulnsign-dynamic-application-security-testing) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [VulnSign](https://cybersectools.com/companies/vulnsign). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions) picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more. ## Side-by-side comparison | | PortSwigger | VulnSign Dynamic Application Security Testing | |---|---|---| | Pricing model | Free | Commercial | | Category | Dynamic Application Security Testing | Dynamic Application Security Testing | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | PortSwigger Ltd. | VulnSign | | Headquarters | – | – | ### Use cases and capabilities | | PortSwigger | VulnSign Dynamic Application Security Testing | |---|---|---| | Bug Bounty | Yes | – | | Web Security | Yes | Yes | | App Security | Yes | – | | CI/CD | – | Yes | | DAST | – | Yes | | OWASP | – | Yes | | SQL Injection | – | Yes | | XSS | – | Yes | ### Core features **PortSwigger** No features listed. **VulnSign Dynamic Application Security Testing** 10 features listed. Sign in on the page to see them. ### Integrations **PortSwigger** No integrations listed. **VulnSign Dynamic Application Security Testing** 9 integrations 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. - [PortSwigger](https://cybersectools.com/tools/portswigger) fits if you are a startup and you need a free product. ## PortSwigger vs VulnSign Dynamic Application Security Testing FAQ Common questions when comparing PortSwigger vs VulnSign Dynamic Application Security Testing for dynamic application security testing. ### What is the difference between PortSwigger and VulnSign Dynamic Application Security Testing? **PortSwigger**: A comprehensive toolkit for web application security testing, offering a range of products and solutions for identifying vulnerabilities and improving security posture. Built by PortSwigger Ltd. **VulnSign Dynamic Application Security Testing**: DAST tool for scanning web apps, microservices, and APIs for vulnerabilities. Built by VulnSign. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes PortSwigger and VulnSign Dynamic Application Security Testing? **PortSwigger** is made by PortSwigger Ltd. **VulnSign Dynamic Application Security Testing** is made by VulnSign. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is PortSwigger a good alternative to VulnSign Dynamic Application Security Testing? Often, yes. PortSwigger and VulnSign Dynamic Application Security Testing are both Dynamic Application Security Testing products, and both cover Web Security. Key differences: PortSwigger is Free while VulnSign Dynamic Application Security Testing is Commercial. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [PortSwigger vs Halo Security Application Scanning](https://cybersectools.com/compare/halo-security-application-scanning-vs-portswigger) - [PortSwigger vs Acunetix Web Application & API Security](https://cybersectools.com/compare/acunetix-web-application-and-api-security-vs-portswigger) - [PortSwigger vs Tenable One Web App Scanning](https://cybersectools.com/compare/portswigger-vs-tenable-web-app-scanning) - [VulnSign Dynamic Application Security Testing vs Halo Security Application Scanning](https://cybersectools.com/compare/halo-security-application-scanning-vs-vulnsign-dynamic-application-security-testing) - [VulnSign Dynamic Application Security Testing vs Acunetix Web Application & API Security](https://cybersectools.com/compare/acunetix-web-application-and-api-security-vs-vulnsign-dynamic-application-security-testing) - [VulnSign Dynamic Application Security Testing vs Tenable One Web App Scanning](https://cybersectools.com/compare/tenable-web-app-scanning-vs-vulnsign-dynamic-application-security-testing) ## Alternatives to each - [See all PortSwigger alternatives](https://cybersectools.com/alternatives/portswigger) - [See all VulnSign Dynamic Application Security Testing alternatives](https://cybersectools.com/alternatives/vulnsign-dynamic-application-security-testing) --- Source: https://cybersectools.com/compare/portswigger-vs-vulnsign-dynamic-application-security-testing For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/portswigger.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on PortSwigger and VulnSign Dynamic Application Security Testing: 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