28 Best DAST Tools (2026)
We tested 28 DAST tools — free scanners like ZAP and Nuclei to enterprise platforms like Invicti and Burp Suite. Side-by-side comparison.
- We tested 28 active DAST tools hands-on — 5 free (ZAP, Nuclei, Dastardly, Wapiti, Nikto), 3 freemium (Burp Suite, Bright Security), and 20 commercial — the largest DAST comparison available.
- The global DAST market reached $3.61B in 2025 and is projected to grow to $8.63B by 2031 at 15.59% CAGR (Mordor Intelligence, 2026-2031). HCL AppScan, Invicti, and Veracode are the 2025 Gartner Leaders.
- ZAP joined Checkmarx (September 2024) — still free and open-source under Apache v2. Nuclei has 12,000+ community-maintained templates for targeted vulnerability checks.
- For CI/CD pipelines, Dastardly (free, 10-min cap), ZAP, Nuclei, and StackHawk work well for quick PR scans. Full crawl scans typically take 1-8 hours and are best scheduled nightly.
- Invicti's proof-based scanning automatically confirms exploitability to reduce false positives. Acunetix + Netsparker merged into Invicti; Synopsys DAST became Black Duck Web Scanner.
What is DAST?
Now, we plug in our washing machine! DAST tools crawl applications in a running state (no language dependency) and attack all possible ways.
It is pretty much simulating what a hacker does.
DAST takes longer to scan and it is not guaranteed all pages will be covered.
For Single-Page Applications, you need to confirm the tool can simulate all DOM activities.
I have been working in the DAST industry for almost 5 years and I keep in touch with all the vendors.
There is a lot that happened during that time: mergers (Acunetix + Netsparker became Invicti), acquisitions (IBM AppScan became HCL AppScan), and the market moved from developing single-instance tools for pentesters to integration into CI/CD and DevSecOps practices.
Unlike SAST tools that scan source code, DAST does not need access to your codebase.
It tests the application as a black box, from the outside, the same way an attacker would.
The DAST market has grown significantly as organizations prioritize runtime security. According to Mordor Intelligence, the global DAST market reached $3.61 billion in 2025 and is projected to grow to $8.63 billion by 2031 at a 15.59% CAGR (Mordor Intelligence, 2026-2031).
“DAST shows you what an attacker actually sees,” explains Ferruh Mavituna, founder of Netsparker (now Invicti), a commercial DAST vendor. “It validates that your defenses work in the real world, not just in theory.”
That means it catches runtime and configuration issues that static analysis misses.
The trade-off is that DAST cannot point to the exact file and line number where the problem lives.
It tells you what is wrong, not where in the code to fix it.
That is why many teams run both SAST and DAST together. AppSec Santa tracks every active DAST tool so you can compare them in one place.

- Language independent — no need to support your stack
- Lower false positive rate than SAST
- Tests the application in its real-life deployed state
- Easy to adopt — does not require source code access
- Catches runtime and configuration issues
- Coverage is not guaranteed — may miss some pages
- Slower than SAST (hours vs minutes)
- Cannot pinpoint exact code location of issues
- Requires a running application or staging environment
- SPA coverage varies between tools
How DAST Works
A DAST tool interacts with your application the same way a browser or an attacker would.
It crawls the site, discovers endpoints, and sends malicious payloads to test for vulnerabilities.
Here are the main stages:
Crawling / Spidering
The scanner maps out the application by following links, submitting forms, and exploring all reachable endpoints. Modern tools use headless browsers to handle JavaScript-heavy SPAs.
Attack / Fuzzing
Once the application is mapped, the tool sends crafted payloads (SQL injection, XSS, command injection, path traversal, etc.) to every input point it discovered. It monitors the responses for signs of vulnerability.
Authentication Testing
The scanner tests the login mechanism, session management, and access controls. Some tools support multi-step login sequences, two-factor authentication, and role-based testing.
API Scanning
Many DAST tools now scan REST and GraphQL APIs in addition to web pages. They import OpenAPI/Swagger specs or Postman collections and test each endpoint for injection, broken authentication, and data exposure.
Reporting & Verification
Results are ranked by severity, usually mapped to OWASP Top 10 or CWE categories. Some tools, like Invicti, use proof-based scanning to automatically confirm that a vulnerability is real, not a false positive.
Quick Comparison
All 28 active DAST tools side by side, grouped by license type.
One tool (Sentinel Dynamic) has been discontinued and is listed separately.
| Tool | License | Standout |
|---|---|---|
| Free / Open Source (5) | ||
| Dastardly NEW | Free | Free CI/CD scanner from PortSwigger; Burp engine |
| Nikto | Free (OSS) | Fast web server scanner; 7000+ checks; Kali default |
| Nuclei | Free (OSS) | 12,000+ community templates; ProjectDiscovery |
| Wapiti | Free (OSS) | Python black-box fuzzer; XSS/SQLi/XXE detection |
| ZAP (Zed Attack Proxy) | Free (OSS) | Most popular OSS DAST; now ZAP by Checkmarx |
| Freemium (3) | ||
| Bright Security | Freemium | Developer-first; Docker client, HAR file import |
| Burp Suite | Freemium | Industry standard for pentesting; new Burp AI |
| Commercial (20) | ||
| Acunetix | Commercial | Straightforward scanner; multi-platform (Linux, Mac, Windows, SaaS) |
| AppCheck | Commercial | Former internal pentest tool (SEC-1 / Claranet); tailor-made solutions |
| Astra Security | Commercial | Automated scanner + managed pentest for SMBs; risk scoring |
| Beagle Security | Commercial | Non-technical user friendly; WordPress plugin |
| Black Duck Web Scanner | Commercial | Formerly Synopsys Web Scanner; now part of Black Duck Software |
| Detectify | Commercial | Crowdsourced vulnerability intel; EASM |
| Escape NEW | Commercial | Business logic testing; BOLA/IDOR detection; API-native |
| Fluid Attacks | Commercial | Holistic DAST+SAST+SCA+PTaaS; AI-powered remediation |
| Fortify WebInspect | Commercial | Enterprise-level; scales to hundreds of apps (now OpenText) |
| GitLab DAST | GitLab Ultimate | Native GitLab CI/CD; browser-based SPA scanning |
| HCL AppScan (DAST) Leader | Commercial | Gartner Leader 2025; AppScan 360° platform |
| InsightAppSec | Commercial | Rapid7; Universal Translator, Attack Replay |
| Intruder | Commercial | Easy to start; monthly subscription + pentest services |
| Invicti Leader | Commercial | Proof-based scanning; IAST + SCA; scales to thousands of apps |
| Pentest Tools | Commercial | Suite of web vulnerability scanners and niche security tools |
| Probely ACQUIRED | Commercial | Now Snyk DAST; DevOps-friendly web app + API scanning |
| Qualys WAS | Commercial | Cloud-native; AI-powered scan optimization |
| StackHawk | Commercial | Developer-first; built on ZAP; HawkAI API discovery |
| Syhunt Dynamic | Commercial | Multi-platform DAST in Syhunt security suite |
| Tenable Web App Scanning | Commercial | REST, GraphQL & SOAP API scanning; ASM integration |
| Veracode Dynamic Analysis Leader | Commercial | Gartner Leader 2025; Crashtest Security integrated |
| Discontinued (3) | ||
| Sentinel Dynamic RENAMED | Was Commercial | Formerly WhiteHat / NTT; acquired by Synopsys, now Black Duck Continuous Dynamic |
| w3af UNMAINTAINED | Open Source | Python web scanner; limited maintenance since 2020 |
| Arachni ARCHIVED | Open Source | Ruby web scanner; archived 2021, replaced by Ecsypno SCNR |
DAST vs SAST vs IAST
DAST is one of three main approaches to application security testing.
Here is how they compare.
| DAST | SAST | IAST | |
|---|---|---|---|
| Approach | Black-box (running app) | White-box (source code) | Grey-box (instrumented runtime) |
| When it runs | After deployment / staging | During development / CI | During testing / QA |
| Needs source code? | No | Yes | Agent required |
| Language dependency | None | Must support your stack | Must support your runtime |
| Finds | Runtime issues (misconfig, auth bypass, injection) | Code-level flaws (SQLi, XSS, buffer overflow) | Both, with exact code location |
| False positives | Lower | Higher | Lowest |
| Speed | Slower (hours) | Fast (minutes) | Depends on test coverage |
No single method catches everything.
In practice, teams run SAST in CI for fast feedback and DAST against staging for runtime issues.
Some also add IAST during QA for deeper, lower-false-positive coverage.
DAST in Your CI/CD Pipeline
The market moved from developing single-instance tools for pentesters to integration into CI/CD and DevSecOps practices.
Running a DAST scan manually is fine for a quarterly audit, but catching issues on every release is where the real value is.
Here is how most teams set it up:
- Deploy to staging — DAST needs a running application. Most pipelines deploy to a staging or QA environment first, then trigger the scan.
- Run a quick scan on every PR — Tools like Dastardly (10-min cap), ZAP, Nuclei, and StackHawk support CLI/Docker modes that can run targeted scans in minutes.
- Run a full crawl on nightly or weekly builds — Full DAST scans take hours. Schedule them outside of the PR workflow so they do not block developers.
- Quality gates — Block deployments to production when critical or high-severity findings appear. Tools like Invicti, StackHawk, and HCL AppScan have built-in CI/CD integration for this.
- API-first scanning — If you have APIs, import your OpenAPI spec and scan those endpoints separately. Escape, StackHawk, and Tenable WAS have strong API scanning capabilities.
Market Changes to Know
The DAST market has gone through some changes in the past few years.
Here is what to be aware of when comparing tools:
- ZAP joined forces with Checkmarx (September 2024) — ZAP is now “ZAP by Checkmarx” with all three project leaders employed by Checkmarx. Still free, still open source under Apache v2 license.
- Veracode acquired Crashtest Security (2022) — Enhanced developer-oriented DAST in the Veracode platform. Named Gartner Leader in 2025.
- HCL AppScan 360° v2.0 released — HCL AppScan unified platform with AI-enabled testing, FIPS 140-3 compliance. Gartner Leader 2025.
- Acunetix + Netsparker merged into Invicti — Invicti is the enterprise platform, Acunetix continues as the standalone product.
- Synopsys Web Scanner became Black Duck Web Scanner — Synopsys sold its Software Integrity Group (2024), now operating as Black Duck Software.
- Fortify WebInspect moved to OpenText — OpenText acquired Micro Focus, which had acquired Fortify from HP.
- Sentinel Dynamic / WhiteHat Security rebranded — Acquired by Synopsys (2022), now available as Black Duck Continuous Dynamic.
How to Choose a DAST Tool
Picking the right DAST tool depends on your application type, your budget, and how you plan to use it.
Here is what I would look at:
- Application type — A traditional multi-page web app is easy for any DAST tool. SPAs, mobile backends, and API-heavy apps need a tool that handles JavaScript rendering and API specs well. Escape specializes in API and business logic testing, while Invicti and Burp Suite handle complex web apps well.
- Manual vs automated — Burp Suite is widely regarded as the standard for manual pentesting. If you need fully automated CI/CD scanning, look at ZAP, Nuclei, StackHawk, or Dastardly instead.
- API support — If your application has a REST or GraphQL API, make sure the tool can import OpenAPI specs and test API endpoints. Escape, StackHawk, and Tenable WAS handle modern APIs well.
- False positive handling — Tools with proof-based scanning (Invicti) or crowdsource verification (Detectify) reduce noise. For open-source, Nuclei templates tend to be precise because they target specific vulnerabilities.
- Budget — ZAP, Nuclei, Dastardly, Wapiti, and Nikto are free. Burp Suite Community is free for manual use. StackHawk offers a 14-day free trial. Enterprise tools require paid licenses.
- Scale — If you need to scan hundreds of applications, you need enterprise tools like Invicti, Veracode, or HCL AppScan that handle multi-target management.
Acunetix
Multi-Platform Easy-to-Use DAST
AppCheck
Former Internal Pentest Tool
Astra Security
AI-Powered Continuous Pentest Platform
Beagle Security
AI-Powered Pentesting Platform
Black Duck Web Scanner
Enterprise DAST on the Polaris Platform
Bright Security
Developer-First CI/CD DAST
Burp Suite
Web Application Pentesting Toolkit
Dastardly
NEWFree CI/CD DAST from PortSwigger
Detectify
Crowdsourced Vulnerability Intel
Escape
NEWBusiness Logic Security Testing
Fluid Attacks
AI + Human Expert Security Testing
Fortify WebInspect
OpenText Enterprise DAST
GitLab DAST
Native GitLab CI/CD Integration
HCL AppScan (DAST)
Gartner Leader Enterprise DAST
InsightAppSec
Rapid7 Attack Replay DAST
Intruder
Unified Exposure Management Platform
Invicti
Proof-Based Scanning
Nikto
Fast Web Server Scanner
Nuclei
Template-Based OSS Scanner
Pentest Tools
Cloud-Based Pentest Platform
Qualys WAS
AI-Powered Cloud DAST
StackHawk
Developer-First CI/CD DAST
Syhunt Dynamic
Multi-Platform DAST with Deep Crawling
Tenable Web App Scanning
Nessus-Powered Cloud DAST with Attack Surface Management
Veracode Dynamic Analysis
Enterprise DAST with Full Platform Integration
Wapiti
Python-Based Black-Box Web Scanner
ZAP (Zed Attack Proxy)
Free Open-Source DAST Scanner
ZeroThreat
NEWAI-powered DAST with automated pentesting
Show 4 deprecated/acquired tools
Frequently Asked Questions
What is DAST (Dynamic Application Security Testing)?
What is the difference between DAST and SAST?
Are there free DAST tools available?
Can DAST tools scan Single-Page Applications (SPAs)?
Can DAST tools be integrated into CI/CD pipelines?
How long does a DAST scan take?
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Application Security @ Invicti
10+ years in application security. Reviews and compares 170 AppSec tools across 11 categories to help teams pick the right solution. More about me →