Best DAST Tools in 2026 (and What They Miss)

DAST tools (dynamic application security testing tools) test a running web application or API from the outside: they crawl it, send attack payloads to every input, and read the responses for signs that something broke. The strongest choices in 2026 are ZAP if you want free and scriptable, Burp Suite if your people also test by hand, Invicti for large portfolios, Acunetix for mid-size teams, and the DAST modules inside platforms you may already pay for. Most still cannot reliably tell when one customer reads another customer’s data: broken access control, which the OWASP Top 10:2025 ranks first after finding some form of it in every application tested. The few that now attempt multi-user authorization testing (StackHawk, Escape, Invicti for APIs) still need the two-account test below.

Invadel is a penetration testing firm, not a tool vendor. We sell nothing on this list and run scanners ourselves, Burp Suite Professional most of all, inside every web application penetration test and API penetration test. Vendor facts were checked on each vendor’s own site in November 2026. Where the scanner stops, a manual test takes over: ours start at $5,200 for a web application and $4,000 for an API, at a fixed published price with a free retest.

DAST tools compared at a glance

Tool	What it is	Best for	Published pricing
ZAP	Open source scanner	Free scanning and pipeline gates	Free (Apache 2.0)
Burp Suite	Tester toolkit plus portfolio scanner	Teams with in-house testers	Professional $499 per user a year; DAST by quote
Invicti	AppSec platform built around DAST	Large portfolios where triage is the bottleneck	By quote
Acunetix (Invicti Web + API)	DAST scanner	Mid-size teams wanting proof-based scanning	By quote
StackHawk	DAST for developers and AI coding agents	Teams shipping agent-written code	$10 per user per month; Scale by quote
Checkmarx DAST	Module of Checkmarx One	Checkmarx SAST customers	Add-on, by quote
Black Duck	Two DAST products	Dev scans plus expert-checked production scans	By quote
OpenText Fortify DAST	Enterprise DAST (WebInspect engine)	Regulated, off-cloud deployments	By quote
Veracode Dynamic Analysis	DAST in a code-security platform	Veracode customers	Not published
Rapid7 InsightAppSec	DAST from a vulnerability management vendor	Apps on closed networks	From $175 per app per month, billed annually
Qualys WAS	Cloud DAST from a vulnerability management vendor	Qualys customers	Not published; 30-day trial
Tenable Web App Scanning	DAST inside Tenable One	Tenable customers	$3,578 a year for 5 FQDNs
Snyk API & Web	DAST from a developer-security vendor	Snyk customers, single-app teams	Free plan; Enterprise by quote
Escape	API and logic-aware DAST	GraphQL and API-heavy products	Not published
Detectify	Attack surface monitoring plus scanning	Sprawling external estates	€0 to €15,000+ a year by tier
GitLab DAST	Built into GitLab Ultimate	Teams already on Ultimate	Included in Ultimate

“By quote” means plans are listed without prices or the vendor asks you to contact sales. Packaging changes often, so confirm before you budget. Prices were checked on vendor pages in November 2026, and the Burp Suite Professional, Tenable and Invicti figures were rechecked on November 11, 2026.

What dynamic application security testing tools do

A DAST scan needs no source code, so it drops into any pipeline. It is good at known flaw classes it can reach, such as SQL injection, cross-site scripting and path traversal, plus missing headers, weak TLS, exposed debug pages and regressions. We compare it with static and interactive testing in SAST vs DAST vs IAST, and our web application security testing guide shows where a scanner sits in the wider program.

How to choose a DAST tool: a proof of concept

Vendor demos run on applications their scanners handle well. Give each shortlisted tool two weeks on your own estate and score it on these:

1. Your hardest application. The single-page app behind SSO, not the marketing site.
2. Coverage against a list you trust. Compare what the tool reached with your route list or OpenAPI specification. The OWASP Developer Guide makes the same point: confirm the tool understood the application before trusting a clean result.
3. A session that holds. Confirm the scan stayed logged in through MFA and token refresh, and did not log itself out by crawling the logout link.
4. API input. Crawlers find few API endpoints on their own, so check OpenAPI, Postman and GraphQL imports, plus gRPC or SOAP if you use them.
5. The two-account test. Give the tool two users and see whether it reports user A reading user B’s records. Most will not, which tells you how much manual testing you still need.
6. Noise and speed. Count how many first-scan findings were real, how long triage took, and whether a full scan fits your release cadence.
7. Your real price. Convert the vendor’s unit (app, FQDN, user, target, domain) into your numbers, including staging and internal apps, which may need an on-premises engine.

The OWASP Benchmark is an independent test suite for measuring the speed and accuracy of SAST, DAST and IAST tools.

How we chose these 16 DAST tools

A tool is on the list if it actively tests a running web application or API by crawling it or importing an API definition, if a team can buy or download it in November 2026, and if the vendor’s own site documents what it does. Prices appear only where the vendor publishes them. The list is not exhaustive.

Template scanners are left out on purpose. Nuclei, an open source scanner under the MIT license, runs community-written templates that check for specific known issues. It does not crawl an application and fuzz every input the way a DAST tool does, so many teams run it beside one, not instead of one.

The 16 best DAST tools in 2026

1. ZAP

Best for: free, scriptable scanning and pipeline gates.

ZAP (Zed Attack Proxy) is the open source scanner others get measured against. Its three project leaders joined Checkmarx in September 2024, but it remains open source under the Apache v2 license with the core team in control. Its Automation Framework runs a scan from one YAML plan, with AJAX and client spiders, OpenAPI and GraphQL imports, and browser or OAuth2 authentication. Of the Docker packaged scans, the baseline spiders briefly and reports passive findings without attacking, so it suits every build; the full and API scans actively attack and belong on staging. The pipeline that runs them holds secrets worth protecting too, which our guide to CI/CD pipeline security covers. The cost is tuning time, and nobody owes you support.

2. Burp Suite Professional and Burp Suite DAST

Best for: teams that test by hand and want the same engine at scale.

Burp Suite Professional is the toolkit most web penetration testers work in, ours included: an intercepting proxy, manual tools and Burp Scanner, listed at $499 per user on annual subscriptions. Burp Suite DAST, which replaced Enterprise Edition, runs the same engine across a portfolio, in the cloud or self-hosted. It plugs into Jenkins, GitHub Actions, GitLab CI and Azure DevOps, can block a merge by severity, imports OpenAPI, Postman, WSDL and GraphQL definitions, and keeps an authenticated session alive. DAST pricing is by quote. Our Burp Suite comparison covers buying the tool versus buying the test.

3. Invicti

Best for: large portfolios where triage time is the bottleneck.

Invicti (the old Netsparker domain redirects there) is an AppSec platform that brings findings from six scanning engines into one view, with DAST at the center. Proof-based scanning confirms many vulnerability classes automatically, which removes much of the triage that stalls DAST programs. It also sells SAST, SCA and attack surface management, plus an automated Agentic Pentest priced at up to $500 per pentest (one application and its API suite) on its pricing page. See our Invicti comparison.

4. Acunetix (Invicti Web + API)

Best for: mid-size teams that want Invicti’s engine without the full platform.

Acunetix is now sold as Invicti Web + API. The vendor says it identifies more than 7,000 issue types, including the OWASP Top 10 and API Security Top 10. The Web + API plan lists proof-based scanning, API discovery and CI/CD automation in the cloud, with on-premises deployment marked as coming soon. See our Acunetix comparison.

5. StackHawk

Best for: teams whose code is increasingly written by AI coding agents.

StackHawk now runs dynamic tests inside the coding agent’s loop, before a pull request is opened, with agent skills for Claude Code, Cursor, Codex and GitHub Copilot, plus API discovery and testing. Its Business Logic Testing, launched in December 2025, runs multi-user authorization tests for BOLA and BFLA. Wingman costs $10 per user per month with unlimited apps; the Scale plan is by quote.

6. Checkmarx DAST

Best for: Checkmarx One customers who want SAST and DAST findings in one inventory.

Checkmarx DAST is part of Checkmarx One and, according to the ZAP project, built on ZAP. It records browser logins with two-factor support, scans REST, SOAP and gRPC APIs, and runs on every build. It is sold as an add-on to Checkmarx One Professional or higher.

7. Black Duck

Best for: separating fast developer scans from expert-checked production scans.

Black Duck sells Polaris fAST Dynamic, a self-serve scanner for development and QA that works from OpenAPI, Postman, HAR and GraphQL files, and Continuous Dynamic for production, with results validated by Black Duck’s experts. Both are quoted.

8. OpenText Fortify DAST

Best for: regulated enterprises that need off-cloud deployment.

OpenText Fortify DAST is built on the long-running WebInspect engine. It scans SOAP, REST, OpenAPI, Postman, GraphQL and gRPC APIs, replays workflows from HAR files, handles MFA, and ships report policies for PCI DSS, DISA STIG, NIST 800-53 and HIPAA. It runs off-cloud, as SaaS or as a managed service.

9. Veracode Dynamic Analysis

Best for: Veracode customers.

Veracode Dynamic Analysis scans web applications and APIs, including those behind your firewall, from the same platform as Veracode’s static analysis.

10. Rapid7 InsightAppSec

Best for: Rapid7 customers and applications on closed networks.

InsightAppSec is Rapid7’s black-box DAST, with more than 95 attack types and an optional on-premises engine for closed networks. Its starting price is $175 per app per month, billed annually.

11. Qualys Web Application Scanning

Best for: Qualys customers who want app findings next to infrastructure findings.

Qualys WAS is cloud-based DAST that also scans REST and SOAP APIs for deviations from OpenAPI v3 specifications and detects web malware. Our Qualys comparison covers the wider platform.

12. Tenable Web App Scanning

Best for: Tenable One customers.

Tenable Web App Scanning crawls and tests web apps and APIs as part of the Tenable One platform, and lists a price: $3,578 a year for five FQDNs.

13. Snyk API & Web

Best for: Snyk customers, and single-app teams that want a free scheduled scan.

Snyk API & Web is Snyk’s DAST product. It crawls single-page apps with a headless Chrome spider, handles SSO and OpenID Connect logins, and tests APIs. The free plan covers monthly scans of one app for up to three users.

14. Escape

Best for: API-first and GraphQL-heavy products.

Escape sells what it calls business-logic-aware DAST: tests that walk workflows, access control and multi-step processes, with OAuth, SSO and multi-tenant support. It has deep GraphQL roots. For what a person tests on the same APIs, see our guide to GraphQL security testing. As with any access-control claim, verify it with the two-account test.

15. Detectify

Best for: finding and scanning what you did not know you exposed.

Detectify pairs external attack surface monitoring with authenticated application and API scanning, with many tests from its community of more than 400 ethical hackers. Its published prices are annual: Starter from €0, Standard from €2,500, Professional from €5,000, Enterprise from €15,000, plus fees per domain and target. See our Detectify comparison.

16. GitLab DAST

Best for: teams already paying for GitLab Ultimate.

GitLab DAST is part of Ultimate: a browser-based analyzer for web apps and an API analyzer for REST, SOAP and GraphQL, run in a pipeline, on a schedule or on demand. The older proxy-based analyzer was removed in GitLab 17.3.

What DAST tools miss

Broken access control, the top risk in the OWASP Top 10:2025, is also the hardest category for a scanner to judge: a successful response looks the same whether or not the user should have seen the data. The few tools that now run multi-user checks still need the two-account test above, for the reasons our IDOR guide sets out, and our OWASP Top 10 2025 explainer covers the full list. Business logic and race conditions usually need manual assessment, as the OWASP Developer Guide notes. Chained low-severity findings need someone to connect them, and pages the crawler never reached are not reported as untested. DAST vs penetration testing covers each gap in full, and automated vs manual penetration testing covers what automated tools catch and cannot.

SAST and DAST tools from one vendor

Checkmarx, Black Duck, OpenText, Veracode, Snyk, GitLab and Invicti all sell static and dynamic testing together. One contract is a fair reason to buy, but judge platform DAST solutions on their own proof of concept, not on the SAST half. Our list of SAST tools covers the static side. NIST’s SP 800-218 (SSDF 1.1, still the final version; a 1.2 draft followed in December 2025) covers both: task PW.7.2 gives static analysis tools as an example, and task PW.8.2 gives dynamic vulnerability testing in the automated test suite as one example and, if resources are available, penetration testing for high-risk scenarios as another.

Does a DAST scan count as a penetration test?

Usually not. PCI DSS Requirement 11.4.1 calls for a methodology that includes application-layer testing, and 11.4.2 and 11.4.3 call for a qualified tester with organizational independence (see PCI DSS penetration testing requirements). SOC 2 does not mandate a penetration test, but most SOC 2 auditors expect one, and enterprise questionnaires that ask for one mean a manual test. DAST output is evidence that vulnerability management works, not the test.

How Invadel tests what the scanner cannot

Our web application penetration testing is the manual layer on top of your scanner. A senior in-house tester follows the OWASP Web Security Testing Guide with accounts in every role, and a second tenant where the product is multi-tenant, and spends the hours on authorization, business logic and chained paths. Send your latest DAST output during scoping: less time mapping the application means more of the engagement goes into what the scanner cannot reach.

Engagement	Small	Medium	Large
Web application penetration test	$5,200	$7,800	$12,500+
API penetration test (REST, GraphQL, SOAP)	$4,000	$6,000	$9,500+

Every test includes the attestation letter auditors and customers ask for, which a scan report cannot replace, plus executive and technical reports, the findings platform and a free manual retest: a rescan cannot confirm that an authorization fix holds for every role. Send your scope details for the price in writing, no sales call needed; onboarding starts within 24 hours of a signed proposal. See the API testing price page, the cost calculator and a sample report. Prefer scan results checked by a person to a tool license? Our analyst-validated vulnerability scanning starts at $1,500 for up to 250 devices. For the wider toolkit, see penetration testing tools.

Frequently asked questions

What are DAST tools? Automated scanners that test a running web application or API from the outside: they send attack payloads to every input they find and report responses that show a vulnerability, without needing source code.

What is the best free DAST tool? ZAP: open source under the Apache v2 license, scriptable through its Automation Framework, and packaged as Docker scans for pipelines. Snyk API & Web also has a free plan for monthly scans of one app.

Is Burp Suite a DAST tool? Yes, and more. Burp Suite Professional is a manual testing toolkit with a built-in scanner. Burp Suite DAST runs that scanning engine automatically across many applications and in CI/CD pipelines.

What are the top 5 DAST tools? ZAP (free and scriptable), Burp Suite (Professional for testers, DAST for portfolios), Invicti, Acunetix, and the DAST module of a platform you already own, such as Checkmarx, Veracode or GitLab Ultimate. Choose by a two-week trial on your hardest application.

Is Nuclei a DAST tool? Not in the usual sense. Nuclei runs templates that check for specific known issues. A DAST tool crawls the application and tests every input it finds. They complement each other.

Can DAST scan a single-page application behind SSO? Yes, with setup. The tool needs a browser-based crawler for the JavaScript routes and a recorded or scripted login that survives MFA and token refresh. Test this first in a trial, because it is where scans most often lose coverage without saying so.

How often should DAST run in a pipeline? A passive baseline scan can run on every build. Run the full active scan against staging nightly or before each release. Starting early is part of shifting security left.

How much do DAST tools cost? From free (ZAP) to enterprise contracts by quote. Published examples as of November 2026: StackHawk Wingman at $10 per user per month, Rapid7 InsightAppSec from $175 per app per month billed annually, and Tenable Web App Scanning at $3,578 a year for five FQDNs. Budget for triage time too.

The short version

Run each shortlisted DAST tool against your hardest application: coverage, staying logged in and noise decide the result. ZAP is the free default, Burp Suite suits teams with testers, and platform modules make sense when you already own the platform. No scanner reliably tests authorization or business logic, so pair it with a manual web application penetration test from $5,200 (every tier) with a free retest, and scope your test for a written fixed price the same day.