| name | devsecops-free-security |
| description | Find free security tools: vulnerability scanners, SAST/DAST, secrets management, and PKI |
Skill: DevSecOps Free Security
Goal
Identify free security tools for DevSecOps: vulnerability scanning, SAST/DAST, secrets management, and PKI/certificates.
Use This Skill When
- Building security into CI/CD pipelines at zero cost
- Setting up secrets management without enterprise tools
- Needing free SSL/TLS certificates
Do Not Use This Skill When
- Enterprise compliance requirements (SOC2, PCI-DSS)
- Production secrets management at scale
Inputs
- Security tool category (SAST, DAST, secrets, PKI)
- Language/technology stack
- Integration points (CI/CD, runtime)
Steps
-
Inventory SAST Tools (Static Analysis)
-
GitHub CodeQL
- Free for public repos
- Supports many languages
- Integrated with GitHub Actions
-
SonarCloud
- Free for public repos
- 15 languages supported
- CI/CD integration
-
Semgrep
- Free for small teams
- Customizable rules
- GitHub/GitLab integration
-
ESLint (JS/TS)
- Open source, free
- Extensive plugin ecosystem
- Security plugins available
-
Bandit (Python)
- Free, open source
- Common security issues detection
-
Safety (Python)
- Dependency vulnerability scanning
- Free database access
-
Inventory DAST Tools (Dynamic Analysis)
-
OWASP ZAP
- Free, open source
- Automated scanning
- CI/CD integration
-
Nuclei
- Free, open source
- Template-based scanning
- Fast and extensible
-
SSL Labs
- Free SSL/TLS assessment
- Online tool + API
-
Inventory Secrets Management
-
Inventory PKI and Certificates
-
Let's Encrypt
- Free SSL/TLS certificates
- Auto-renewal via certbot
- Rate limits: 50 certificates/week per domain
-
ZeroSSL
- Free 90-day certificates
- 3 certificates per domain
-
Cloudflare SSL
- Free Universal SSL
- Works with Cloudflare proxy
-
SSL For Free
- Free certificates via ACME
- Multiple CA options
-
Buypass
- Free SSL certificates
- Norwegian CA
-
DigiCert (Free Trial)
-
Inventory Container Security
-
Inventory Dependency Scanners
-
Dependabot
- Free on GitHub
- Automated updates
- Security alerts
-
Snyk
- Free for small projects
- Open source security
- Container scanning
-
WhiteSource Renovate
- Free for open source
- Automated dependency updates
-
OWASP Dependency-Check
- Free, open source
- CVE database scanning
Output
- Security tool comparison by category
- Integration recommendations for CI/CD
- Self-hosted vs SaaS trade-offs
- Certificate authority options
Key Considerations
- Let's Encrypt is the gold standard for free SSL
- Self-hosted tools require infrastructure
- Free tiers often have usage limits
- Public repos get best free tool support