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DAST

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.

Suphi Cankurt
Suphi Cankurt
AppSec Enthusiast
Updated February 12, 2026
7 min read
Key Takeaways
  • 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.

Best DAST Tools overview
Overview of how DAST tools test running applications from the outside
Advantages
  • 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
Limitations
  • 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:

1

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.

2

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.

3

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.

4

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.

5

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.

ToolLicenseStandout
Free / Open Source (5)
Dastardly NEWFreeFree CI/CD scanner from PortSwigger; Burp engine
NiktoFree (OSS)Fast web server scanner; 7000+ checks; Kali default
NucleiFree (OSS)12,000+ community templates; ProjectDiscovery
WapitiFree (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 SecurityFreemiumDeveloper-first; Docker client, HAR file import
Burp SuiteFreemiumIndustry standard for pentesting; new Burp AI
Commercial (20)
AcunetixCommercialStraightforward scanner; multi-platform (Linux, Mac, Windows, SaaS)
AppCheckCommercialFormer internal pentest tool (SEC-1 / Claranet); tailor-made solutions
Astra SecurityCommercialAutomated scanner + managed pentest for SMBs; risk scoring
Beagle SecurityCommercialNon-technical user friendly; WordPress plugin
Black Duck Web ScannerCommercialFormerly Synopsys Web Scanner; now part of Black Duck Software
DetectifyCommercialCrowdsourced vulnerability intel; EASM
Escape NEWCommercialBusiness logic testing; BOLA/IDOR detection; API-native
Fluid AttacksCommercialHolistic DAST+SAST+SCA+PTaaS; AI-powered remediation
Fortify WebInspectCommercialEnterprise-level; scales to hundreds of apps (now OpenText)
GitLab DASTGitLab UltimateNative GitLab CI/CD; browser-based SPA scanning
HCL AppScan (DAST) LeaderCommercialGartner Leader 2025; AppScan 360° platform
InsightAppSecCommercialRapid7; Universal Translator, Attack Replay
IntruderCommercialEasy to start; monthly subscription + pentest services
Invicti LeaderCommercialProof-based scanning; IAST + SCA; scales to thousands of apps
Pentest ToolsCommercialSuite of web vulnerability scanners and niche security tools
Probely ACQUIREDCommercialNow Snyk DAST; DevOps-friendly web app + API scanning
Qualys WASCommercialCloud-native; AI-powered scan optimization
StackHawkCommercialDeveloper-first; built on ZAP; HawkAI API discovery
Syhunt DynamicCommercialMulti-platform DAST in Syhunt security suite
Tenable Web App ScanningCommercialREST, GraphQL & SOAP API scanning; ASM integration
Veracode Dynamic Analysis LeaderCommercialGartner Leader 2025; Crashtest Security integrated
Discontinued (3)
Sentinel Dynamic RENAMEDWas CommercialFormerly WhiteHat / NTT; acquired by Synopsys, now Black Duck Continuous Dynamic
w3af UNMAINTAINEDOpen SourcePython web scanner; limited maintenance since 2020
Arachni ARCHIVEDOpen SourceRuby 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.

DASTSASTIAST
ApproachBlack-box (running app)White-box (source code)Grey-box (instrumented runtime)
When it runsAfter deployment / stagingDuring development / CIDuring testing / QA
Needs source code?NoYesAgent required
Language dependencyNoneMust support your stackMust support your runtime
FindsRuntime issues (misconfig, auth bypass, injection)Code-level flaws (SQLi, XSS, buffer overflow)Both, with exact code location
False positivesLowerHigherLowest
SpeedSlower (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:

  1. Deploy to staging — DAST needs a running application. Most pipelines deploy to a staging or QA environment first, then trigger the scan.
  2. 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.
  3. 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.
  4. 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.
  5. 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 releasedHCL 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:

  1. 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.
  2. Manual vs automatedBurp 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.
  3. 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.
  4. 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.
  5. BudgetZAP, 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.
  6. 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

Acunetix

Multi-Platform Easy-to-Use DAST

Commercial
AppCheck

AppCheck

Former Internal Pentest Tool

Commercial
Astra Security

Astra Security

AI-Powered Continuous Pentest Platform

Commercial
Beagle Security

Beagle Security

AI-Powered Pentesting Platform

Commercial
Black Duck Web Scanner

Black Duck Web Scanner

Enterprise DAST on the Polaris Platform

Commercial
Bright Security

Bright Security

Developer-First CI/CD DAST

Freemium
Burp Suite

Burp Suite

Web Application Pentesting Toolkit

Freemium
Dastardly

Dastardly

NEW

Free CI/CD DAST from PortSwigger

Free
Detectify

Detectify

Crowdsourced Vulnerability Intel

Commercial
Escape

Escape

NEW

Business Logic Security Testing

Commercial
Fluid Attacks

Fluid Attacks

AI + Human Expert Security Testing

Commercial 13 langs
Fortify WebInspect

Fortify WebInspect

OpenText Enterprise DAST

Commercial
GitLab DAST

GitLab DAST

Native GitLab CI/CD Integration

Commercial (GitLab Ultimate)
HCL AppScan (DAST)

HCL AppScan (DAST)

Gartner Leader Enterprise DAST

Commercial
InsightAppSec

InsightAppSec

Rapid7 Attack Replay DAST

Commercial
Intruder

Intruder

Unified Exposure Management Platform

Commercial
Invicti

Invicti

Proof-Based Scanning

Commercial
Nikto

Nikto

Fast Web Server Scanner

Free (Open-Source)
Nuclei

Nuclei

Template-Based OSS Scanner

Free (Open-Source)
Pentest Tools

Pentest Tools

Cloud-Based Pentest Platform

Commercial
Qualys WAS

Qualys WAS

AI-Powered Cloud DAST

Commercial
StackHawk

StackHawk

Developer-First CI/CD DAST

Commercial
Syhunt Dynamic

Syhunt Dynamic

Multi-Platform DAST with Deep Crawling

Commercial
Tenable Web App Scanning

Tenable Web App Scanning

Nessus-Powered Cloud DAST with Attack Surface Management

Commercial
Veracode Dynamic Analysis

Veracode Dynamic Analysis

Enterprise DAST with Full Platform Integration

Commercial
Wapiti

Wapiti

Python-Based Black-Box Web Scanner

Free (Open-Source)
ZAP (Zed Attack Proxy)

ZAP (Zed Attack Proxy)

Free Open-Source DAST Scanner

Free (Open-Source, Apache 2.0)
ZE

ZeroThreat

NEW

AI-powered DAST with automated pentesting

Freemium
Show 4 deprecated/acquired tools

Frequently Asked Questions

What is DAST (Dynamic Application Security Testing)?
DAST is a black-box testing method that crawls and attacks running web applications from the outside, simulating what an attacker would do. It does not need access to source code and is language-independent. DAST finds runtime vulnerabilities, configuration issues, and authentication flaws that static analysis misses.
What is the difference between DAST and SAST?
DAST tests a running application from the outside (black-box) while SAST scans source code without executing it (white-box). DAST catches runtime and configuration issues that SAST misses, but it cannot point to the exact line of code causing the problem. Most teams use both together.
Are there free DAST tools available?
Yes. ZAP (now ZAP by Checkmarx), Nuclei, Dastardly, Wapiti, and Nikto are all free and open source. Burp Suite has a free Community Edition for manual testing. Bright Security offers a free tier alongside its commercial plans. StackHawk provides a 14-day free trial.
Can DAST tools scan Single-Page Applications (SPAs)?
Some can, but it varies. SPAs rely on JavaScript and DOM manipulation, which traditional crawlers struggle with. Burp Suite, Invicti, and HCL AppScan handle SPAs better than most. Always confirm the tool can simulate all DOM activities before committing.
Can DAST tools be integrated into CI/CD pipelines?
Yes. Most modern DAST tools offer CI/CD integration via CLI, APIs, GitHub Actions, or Jenkins plugins. ZAP, Nuclei, StackHawk, and Dastardly are well-suited for pipeline integration because of their command-line interfaces and Docker support.
How long does a DAST scan take?
A full DAST scan of a medium-sized web application typically takes 1 to 8 hours, depending on the number of pages, forms, and endpoints. Quick scans or targeted scans can finish in minutes. DAST is slower than SAST because it needs to crawl and interact with a live application.


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Suphi Cankurt

10+ years in application security. Reviews and compares 170 AppSec tools across 11 categories to help teams pick the right solution. More about me →