qsa.sh vs Cotool Security: Which is Better in 2026?
Choosing between qsa.sh and Cotool Security comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: qsa.sh wins this matchup. Our overall Vulnerability Scanning pick is Malwarebytes. Our free Vulnerability Scanning pick is Intruder. Pick Cotool Security if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
qsa.sh
External port and vulnerability scans from your terminal
Best for you if:
- • You want zero installation, just run curl; no agent or software to deploy
- • You want transparent and auditable, uses only public open-source tools, no black box
Cotool Security
Comprehensive security monitoring and vulnerability scanning for your digital assets.
Best for you if:
- • You want automates routine security checks
- • You want helps identify critical vulnerabilities early
| At a Glance | qsa.sh | Cotool Security |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Security | Security |
Rating | - | - |
Free plan | Yes | Yes |
Choose qsa.sh or Cotool Security?
Choose qsa.sh if
External port and vulnerability scans from your terminal
- You want zero installation, just run curl; no agent or software to deploy
- You want transparent and auditable, uses only public open-source tools, no black box
Choose Cotool Security if
Comprehensive security monitoring and vulnerability scanning for your digital assets.
- You want automates routine security checks
- You want helps identify critical vulnerabilities early
| Feature | qsa.sh | Cotool Security |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | No ratings yet |
| Categories | SecurityTerminal Tools | SecurityVulnerability Scanning |
In-Depth Analysis
qsa.sh
External port and vulnerability scans from your terminal
The pricing is generous for casual use with a free tier that covers the top 1,000 ports, but the $5/mo Full Pro tier is a steal for continuous scanning of all ports, while $7/scan for Deep is steep for occasional use.
Strengths
- +Zero installation, just run curl; no agent or software to deploy.
- +Transparent and auditable, uses only public open-source tools, no black box.
- +Strictly limited to scanning your own IP, with consent gate and opt-out for operators.
Weaknesses
- -IPv4 only, IPv6 connections are refused.
- -Free scan limited to one per 24 hours and only top 1,000 ports; Full and Deep require payment.
Key features
Cotool Security
Comprehensive security monitoring and vulnerability scanning for your digital assets.
Strengths
- +Automates routine security checks
- +Helps identify critical vulnerabilities early
- +User-friendly interface for security management
Weaknesses
- -May require some technical knowledge for advanced configurations
- -Specific integrations might be limited compared to enterprise solutions
Key features
Pricing: qsa.sh vs Cotool Security
| Plan | qsa.sh | Cotool Security |
|---|---|---|
| Tier 1 | $0/mo or Free Free | N/A |
| Tier 2 | $5/mo Full Pro | N/A |
| Tier 3 | $7/scan Deep | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on qsa.sh pricing and Cotool Security pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: qsa.sh
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings — compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call — neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are security tools. Compare their specific features to decide.
How important are ratings?
Neither has ratings yet.
Key Takeaways
qsa.sh
- Free tier available
- Our pick for this comparison
Cotool Security
- Choose if you want comprehensive security monitoring and vulnerability scanning for your digital assets
The Bottom Line
qsa.sh wins this matchup. Our overall Vulnerability Scanning pick is Malwarebytes. Our free Vulnerability Scanning pick is Intruder.
Frequently Asked Questions
Is qsa.sh or Cotool Security better?
qsa.sh is rated in our evaluation. Both are freemium.
What are qsa.sh and Cotool Security used for?
qsa.sh: External port and vulnerability scans from your terminal. Cotool Security: Comprehensive security monitoring and vulnerability scanning for your digital assets..
What does qsa.sh cost vs Cotool Security?
qsa.sh is freemium (free tier + paid plans). Cotool Security is freemium (free tier + paid plans). Visit their websites for detailed pricing.