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Head-to-head · Web Application Security Scanners

ZeroThreat vs OWASP ZAP

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score ZeroThreat #1 in Web Application Security Scanners 9.4/10 Free plan Free plan✓ 5 of 5 features Visit ZeroThreat
OWASP ZAP #4 in Web Application Security Scanners 9.1/10 Free plan Free plan✓ 0 of 5 features Visit OWASP ZAP

ZeroThreat leads on 0 checks, OWASP ZAP on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreZeroThreat · 9.4/10
  • Free planboth
  • Most featuresZeroThreat · 5 of 5

ZeroThreat scores higher on our rubric for web application security scanners: 9.4 against 9.1 out of 10; our editors rank them #1 and #4.

ZeroThreat is the better fit for budget-conscious teams needing deep coverage. OWASP ZAP is the better fit for teams wanting a free, extensible scanner.

  • ZeroThreat fits best

    Budget-conscious teams needing deep coverage

  • OWASP ZAP fits best

    Teams wanting a free, extensible scanner

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature ZeroThreat 9.4/10 Visit ↗ OWASP ZAP 9.1/10 Visit ↗
At a glance
Editor score 9.4 9.1
Ranking #1 in Web Application Security Scanners #4 in Web Application Security Scanners
Best for Budget-conscious teams needing deep coverage Teams wanting a free, extensible scanner
Pricing model Free plan + paid Free
Starting price $100/mo Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Browser extension, Self-hosted Self-hosted, Desktop, Browser extension
Platforms Web, Chrome extension Windows, macOS, Linux
Integrations 11 integrations 2 integrations
Features ZeroThreat 5/5 · OWASP ZAP 0/5
Authenticated scans ✓ (best) Not checked yet
JavaScript crawling ✓ (best) Not checked yet
Scheduled scans ✓ (best) Not checked yet
Compliance reports ✓ (best) Not checked yet
API scanning ✓ (best) Not checked yet
Specs
Deployment Hybrid Not checked yet
Target limit Not checked yet Not checked yet
Our review
Pros
  • Authenticated scanning supports login sequences and MFA workflows
  • Covers REST, GraphQL, SOAP, and gRPC APIs
  • Business-logic testing, retesting, and compliance reports are included
  • Active and passive scanning with traditional and browser-based spiders
  • Imports OpenAPI, GraphQL, Postman, and SOAP definitions
  • Supports Docker, GitHub Actions, YAML automation, and add-ons
Cons
  • The Free plan provides only 1 scan credit per month
  • Professional Cloud starts at $100 per first host per month
  • Several advanced capabilities are limited to enterprise plans
  • Self-hosted deployment requires local or team-managed infrastructure
  • Free open-source operation may require more internal security expertise
  • Enterprise workflow depth is narrower than its scanning and automation scope
Our verdict

ZeroThreat is an AI-powered autonomous penetration-testing platform for web applications and APIs. It is designed for teams that need authenticated testing, API coverage, JavaScript application crawling, business-logic analysis, and…

Read the review →

OWASP ZAP is a free, open-source web application security scanner and penetration-testing proxy for developers, testers, and security professionals. It supports interactive work through a desktop application as well as automated scanning…

Read the review →
  1. ZeroThreatWeb Application Security Scanners 9.4Free plan
  2. OWASP ZAPWeb Application Security Scanners 9.1Free plan

Strengths and trade-offs

  • ZeroThreat — where it wins

    • Authenticated scanning supports login sequences and MFA workflows
    • Covers REST, GraphQL, SOAP, and gRPC APIs
    • Business-logic testing, retesting, and compliance reports are included

    Where it doesn't

    • The Free plan provides only 1 scan credit per month
    • Professional Cloud starts at $100 per first host per month
    • Several advanced capabilities are limited to enterprise plans

  • OWASP ZAP — where it wins

    • Active and passive scanning with traditional and browser-based spiders
    • Imports OpenAPI, GraphQL, Postman, and SOAP definitions
    • Supports Docker, GitHub Actions, YAML automation, and add-ons

    Where it doesn't

    • Self-hosted deployment requires local or team-managed infrastructure
    • Free open-source operation may require more internal security expertise
    • Enterprise workflow depth is narrower than its scanning and automation scope

More comparisons

All web application security scanners comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update