SonarQube vs Knostic
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Knostic has the lower starting price: about $15 a month, against $34 for SonarQube.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Quality gates
- AI CodeFix
- AI Code Assurance
- SonarQube for IDE
- 30+ languages
- Extension and MCP scanning
- Policy enforcement
- Generated code scanning
- Audit logs
- Threat intelligence
| Feature | SonarQube | Knostic |
|---|---|---|
| Best for | Code quality and security checks for AI and human code | Security controls for AI coding agents, MCP servers and skills |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | $34/mo | $15/mo |
| Free plan | Yes | Yes |
| Made by | Sonar | Knostic |
| Based in | Switzerland | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Knostic has the lower starting price: about $15 a month, against $34 for SonarQube.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Private projects up to 50k LOC
- No card, no expiry
Team
$34/mo
- Up to 100k LOC (more tiers available)
- Includes Advanced Security
- Billed monthly by card
Enterprise
Contact sales
- For 50+ developers
- 45+ languages, SSO and SCIM
- Portfolios and OWASP/MISRA reports
3 plans
Free
Free
- For 1 to 5 users
- Continuous project scanning
- MCP and extension scanning
Team
$15/mo
- Per user
- Unified dashboard
- Organizational policy
- Audit logs
Enterprise
Contact sales
- Policy groups
- Enterprise SSO
- SIEM and Slack integrations
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
SonarQube
- Industry-standard code quality tool
- Free tier and IDE plugin
- Clear quality gates
- AI features need higher plans
- Can feel noisy on legacy code
Knostic
- Free plan for individuals and small teams
- Covers MCP servers and extensions
- Central policy across agents
- Aimed at security teams
- Advanced detection is a paid add-on
- Enterprise features need sales contact
Which one should you choose?
Choose SonarQube if you want:
- Industry-standard code quality tool
- Free tier and IDE plugin
- Clear quality gates
Watch out: ai features need higher plans.
Choose Knostic if you want:
- Free plan for individuals and small teams
- Covers MCP servers and extensions
- Central policy across agents
Watch out: aimed at security teams.
SonarQube vs Knostic FAQ
What is the difference between SonarQube and Knostic?
SonarQube: Code quality and security checks for AI and human code. Knostic: Security controls for AI coding agents, MCP servers and skills. Both are coding tools.
Is SonarQube or Knostic cheaper?
Knostic has the lower starting price: about $15 a month, against $34 for SonarQube.
Do SonarQube and Knostic have free plans?
SonarQube: Yes. Knostic: Yes.
Who makes SonarQube?
SonarQube is made by Sonar, based in Switzerland.
Who makes Knostic?
Knostic is made by Knostic.
Which should I choose, SonarQube or Knostic?
Choose SonarQube if you value industry-standard code quality tool and free tier and ide plugin. Choose Knostic if you value free plan for individuals and small teams and covers mcp servers and extensions.