OWASP ZAP vs Requestly: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for OWASP ZAP and Requestly side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
OWASP ZAP
Open-source web application security scanner
Best for you if:
- • You want a fully free tool (Requestly requires payment)
Requestly
Build, test, and debug APIs faster with a lightweight, open-source API client and web debugger.
Best for you if:
- • You want free and open-source, offering a cost-effective solution
| At a Glance | OWASP ZAP | Requestly |
|---|---|---|
Starts at | Free 100% free | Free plan |
Category | Security Testing & QA | API Tools Developer Tools |
Rating | 4.7/5 G2 4.7 14 reviews | 4.7/5 G2 4.7 5 reviews |
Free plan | Yes | Yes |
Choose OWASP ZAP or Requestly?
Choose OWASP ZAP if
- You want a fully free tool (Requestly requires payment)
- You want free security scanner
- You want good for web apps
- You work in security, not API tools
Choose Requestly if
- You want free and open-source, offering a cost-effective solution
- You want lightweight and fast, designed for quick operations
- You work in API tools, not security
In-Depth Analysis
OWASP ZAP
Open-source web application security scanner
OWASP ZAP's pricing is exceptionally generous, being entirely free.
Strengths
- Pro: Free security scanner
- Pro: Good for web apps
- Pro: Active community
- Pro: CI/CD integration
- Pro: Open source
Weaknesses
- Con: Learning curve
- Con: False positives
- Con: Performance varies
- Con: UI dated
- Con: Configuration needed
Key features
Requestly
Build, test, and debug APIs faster with a lightweight, open-source API client and web debugger.
Strengths
- Pro: Free and open-source, offering a cost-effective solution.
- Pro: Lightweight and fast, designed for quick operations.
- Pro: Comprehensive features for both API testing and web debugging.
- Pro: Strong emphasis on security and compliance for enterprise use.
- Pro: Supports collaboration with team workspaces and Git sync.
Weaknesses
- Con: Requires a desktop and desktop browser for full functionality.
- Con: Desktop app currently only explicitly mentioned for Mac, implying limited cross-platform desktop support.
- Con: May require some learning curve for users accustomed to other API tools.
Key features
Plans and prices: OWASP ZAP vs Requestly
| Tool | Plans and prices | Source |
|---|---|---|
| OWASP ZAP |
| zaproxy.org read Sep 30, 2026 |
| Requestly | No plan prices on file | requestly.io/pricing |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on OWASP ZAP pricing and Requestly pricing.
Key Takeaways
OWASP ZAP
- Choose if you want open-source web application security scanner
Requestly
- Choose if you want build, test, and debug APIs faster with a lightweight, open-source API client and web debugger
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings rest on too few reviews to rank (4.7/5 from 14 reviews for OWASP ZAP, 4.7/5 from 5 reviews for Requestly; we compare ratings only above 20 reviews on both sides).
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do OWASP ZAP and Requestly compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings rest on too few reviews to rank (4.7/5 from 14 reviews for OWASP ZAP, 4.7/5 from 5 reviews for Requestly; we compare ratings only above 20 reviews on both sides). Both have a free plan.
What are OWASP ZAP and Requestly used for?
OWASP ZAP: Open-source web application security scanner. Requestly: Build, test, and debug APIs faster with a lightweight, open-source API client and web debugger.
What does OWASP ZAP cost vs Requestly?
OWASP ZAP is free. Requestly has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Sep 30, 2026.
What's the main difference between OWASP ZAP and Requestly?
OWASP ZAP's main strength: free security scanner. Requestly's main strength: free and open-source, offering a cost-effective solution.