FREEDOM251

Freedom251 › Developer Tools

Free and open first

Best Static Application Security Testing Software in 2026

Static application security testing software checks code for potential security issues as part of development work. Compare analysis targets and supported languages, then look at IDE and CI/CD support to understand how each tool may fit into your workflow. Fix guidance and SCA inclusion add further points of distinction; deployment, free-plan availability, and paid-from pricing are also listed. Skylos, Snyk Open Source, and Horusec are among the options, alongside Semgrep Code and Flawfinder. Match the listed language coverage and integrations to your codebase and process, and consider which deployment approach and guidance are useful to your team.

  1. 1

    Bandit

    Free plan Open source ExtensionLinuxMac+1

    Bandit focuses on Python security linting, with options for baselines, formatted output, and integration into development workflows.

    9.3 Free plan Visit site
  2. 2

    gosec

    Free plan Open source APILinuxMac+1

    gosec offers configurable static security analysis for Go, with several output formats and CI integration options. Teams should review findings because automated detection can flag safe code.

    9.0 Free plan Visit site
  3. 3

    OpenGrep

    Free plan Open source APILinuxMac+2

    OpenGrep pairs broad language support with Semgrep rule compatibility and multiple analysis outputs. Note that deployment is self-hosted and the security policy covers only the latest version.

    8.7 Free plan Visit site
  4. 4

    Semgrep Code

    Free plan Open source APIExtensionLinux+4

    Semgrep Code pairs static analysis with AI analysis and remediation guidance for findings.

    8.6 From $15/user/mo Visit site
  5. 5

    Flawfinder

    Free plan LinuxMacSelf-hosted+1

    Flawfinder offers risk-ranked checks for C/C++ source with several report formats and a patch-focused option. Treat it as an aid to security review, not a complete vulnerability detector.

    7.5 Free plan Visit site
  6. 6

    Bearer

    Free plan LinuxMac

    Choose Bearer CLI if you need a free source-code scanner that combines security checks with data-flow and privacy reporting.

    7.4 Free plan Visit site
  7. 7

    GitHub CodeQL

    Free plan ExtensionLinuxMac+3
    7.4 Free plan · paid from $30/mo Visit site
  8. 8

    Brakeman

    Free plan LinuxSelf-hosted

    Brakeman focuses on security analysis for Rails code and offers multiple ways to install, report results, and automate scans.

  9. 9

    Horusec

    Free plan APIExtensionLinux+4

    Horusec combines configurable static analysis with CLI, editor, and CI/CD workflows.

    7.3 Free plan Visit site
  10. 10

    Dawnscanner

    Free plan LinuxSelf-hosted

    Dawnscanner combines framework-aware Ruby checks with view-code analysis and mitigation guidance. Its text-only results and separate knowledge-base download are worth considering before adopting it.

    7.2 Open source Visit site
  11. 11

    Microsoft DevSkim

    Free plan APIExtensionLinux+3

    DevSkim offers IDE, CLI, and library options for security linting, with custom rules and several result formats.

    7.2 Free plan Visit site
  12. 12

    MobSF

    Free plan AndroidAPIiPhone+3

    MobSF offers static, dynamic and malware analysis with reporting and CI/CD integration.

    7.2 Free plan Visit site
  13. 13

    Puma Scan

    Free plan LinuxMacSelf-hosted+1

    Puma Scan provides Visual Studio scanning for supported C# projects and pipeline options for automated checks.

    7.1 Free plan · paid from $299/user/yr · 30-day trial Visit site
  14. 14

    Pysa

    Free plan ExtensionLinuxMac+2

    Pysa offers configurable taint analysis, CI support, and a local findings workflow at no cost.

    7.0 Open source Visit site
  15. 15

    Skylos

    Free plan APIExtensionLinux+4

    Skylos offers local analysis alongside cloud workflows, with clear distinctions about when scan data is uploaded. Review language coverage and cloud limits to see whether they fit your workflow.

    7.0 Free plan · paid from $9 · 7-day trial Visit site
  16. 16

    PVS-Studio

    Free plan LinuxMacWindows

    Choose PVS-Studio if your team needs multi-language source analysis, security checks, and integrations with development tools.

    6.9 Pricing on request · 7-day trial Visit site
  17. 17

    CodeSonar

    Free trial LinuxSelf-hostedWeb+1

    Choose CodeSonar if you need static analysis across source code and binaries, with support for named security coverage, coding standards, and deployment options.

    6.4 Pricing on request Visit site
  18. 18

    Black Duck Coverity

    Paid LinuxMacSelf-hosted+2

    Coverity pairs broad language and framework coverage with IDE, source-control, and CI integrations. Teams need to request a quote, and the facts list no free plan.

    6.0 Pricing on request Visit site
  19. 19

    Mend SAST

    Paid LinuxMacSelf-hosted+2

    Choose Mend SAST if your team needs source code scanning across many languages, contextual prioritization, and remediation within development workflows.

    5.7 From $1,000/yr Visit site
  20. 20

    HCL AppScan Source

    Paid LinuxSelf-hostedWindows

    Choose HCL AppScan Source if your security or development team needs source-code SAST with IDE and CI/CD integration, custom language support, and on-premises control.

    5.6 Pricing on request Visit site
  21. 21

    Snyk Code

    Free plan Web
    5.6 Free plan · paid from $25/mo Visit site
  22. 22

    Checkmarx SAST

    Paid LinuxWebWindows
    4.7 Pricing on request Visit site
  23. 23

    Klocwork

    Paid LinuxWebWindows

    Choose Klocwork if your team needs source code analysis with pull request scans, IDE and CI/CD integration, custom rules, or automated fixes.

    4.7 Pricing on request Visit site
  24. 24

    njsscan

    Paid LinuxMac
    4.3 Open source Visit site
  25. 25
    4.0 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

More in Developer Tools