FREEDOM251

Freedom251 › Developer Tools

Free and open first

Best Static Analysis Tools in 2026

Static analysis tools help examine source code without running a program, with listed capabilities that can vary by language and development environment. Compare language support and IDE support, then look at security analysis and custom rules to understand the checks each tool offers. CI/CD support and deployment options can be relevant when fitting analysis into a development process. Free plans and paid-from pricing add useful cost context. MATLAB Grader, Infer, and PMD are among the entries, alongside Qodana and Semgrep Code. Consider the languages you use and whether integrations or configurable rules matter for your workflow.

  1. 1

    Cppcheck

    Free plan Open source LinuxMacSelf-hosted+1

    Cppcheck offers core C and C++ analysis for free, with paid licensing adding standards checks and compliance reporting.

    9.1 Free plan · 21-day trial 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.

    8.9 Free plan Visit site
  3. 3

    CodeScene

    Free plan APILinuxSelf-hosted+1

    CodeScene combines code-quality analysis with insight into team knowledge and software delivery.

    7.5 Free plan · paid from €18/mo (annual) · 14-day trial Visit site
  4. 4

    DeepSource

    Free plan APILinuxMac+3

    DeepSource combines pull request review with security scans and code-coverage thresholds. Compare the free tier’s monthly allowances with your review volume, and note the annual billing on Team.

    7.5 Free plan · paid from $24/user/mo (annual) · 14-day trial Visit site
  5. 5

    Brakeman

    Free plan LinuxSelf-hosted

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

  6. 6

    Clang Static Analyzer

    Free plan LinuxMacWindows

    Clang Static Analyzer offers free, self-hosted analysis for three languages, with command-line and potential IDE integration.

    7.4 Free plan Visit site
  7. 7

    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.

    7.4 Free plan Visit site
  8. 8

    GitHub CodeQL

    Free plan ExtensionLinuxMac+3
    7.4 Free plan · paid from $30/mo Visit site
  9. 9

    Codacy

    Free plan ExtensionWeb

    Codacy brings code review, security scanning, and coding standards into a cloud platform for engineering teams.

    7.3 Free plan · paid from $18/user/mo (annual) · 14-day trial Visit site
  10. 10

    Infer

    Free plan LinuxMacSelf-hosted+1

    Infer offers broad static analysis for several languages, with checks that can follow bugs across files.

    7.3 Free plan Visit site
  11. 11

    CodeChecker

    Free plan APIExtensionLinux+4

    CodeChecker offers open-source analysis and report management, with integrations for review workflows and an editor extension.

    7.2 Open source Visit site
  12. 12

    Coverity Scan

    Free plan APIWeb

    Choose Coverity Scan if your registered open source project needs cloud static analysis and its build allowances suit your needs.

    7.2 Free plan Visit site
  13. 13

    Gitar

    Free plan APISelf-hostedWeb

    Gitar combines pull request review, CI diagnosis and rule-governed automated fixes.

    7.2 Pricing on request Visit site
  14. 14

    PMD

    Free plan LinuxMacSelf-hosted+1

    PMD combines broad language coverage, custom rules, and bundled duplicate detection without a listed price. Check language-specific rule coverage and version support before adopting it.

    7.1 Free plan Visit site
  15. 15

    Qodana

    Free plan APIExtensionLinux+4

    Qodana combines code analysis, pipeline gates, and multiple deployment options. Its contributor-based licensing minimum is worth factoring into plan selection.

    7.1 Free plan · 30-day trial Visit site
  16. 16

    Joern

    Free plan APILinuxMac+2

    Choose Joern if you need an open-source platform for graph-based code analysis, customizable queries, or CI security scanners.

    7.0 Free plan Visit site
  17. 17

    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
  18. 18

    Scrutinizer CI

    Free plan APIExtensionWeb

    Scrutinizer CI combines build and deployment workflows with code analysis, quality tracking, and browser-based code navigation.

    6.9 Free plan · 14-day trial Visit site
  19. 19

    Understand

    Free plan APIExtensionLinux+3

    Choose Understand if you need static code analysis and navigation across its supported languages, or need command-line, CI, self-hosted or offline workflows.

    6.9 Free plan · paid from $100/user/mo (annual) Visit site
  20. 20

    SpotBugs

    Free plan LinuxMacWindows

    Choose SpotBugs if you need free static analysis for Java and want to run it standalone or through a listed build tool or IDE.

    6.8 Open source Visit site
  21. 21

    emba

    Free plan Linux

    emba provides a focused workflow for comparing Boolean model groups and finding network biomarkers. Its required inputs and Linux platform should fit the intended research setup.

    6.7 Free plan Visit site
  22. 22

    CAST Imaging

    Free trial APILinuxSelf-hosted+2

    CAST Imaging provides application maps, analysis data access, and AI features for teams working with existing software.

  23. 23

    Unused CSS Finder

    Free plan Web

    Unused CSS Finder provides useful scan results and cleaned CSS without minifying the output. Its static analysis can miss selectors created at runtime, so results may not cover every page state.

    6.5 Free plan Visit site
  24. 24

    JArchitect

    Free trial APILinuxMac+2

    JArchitect offers broad Java and JVM analysis with customizable checks, quality reporting, and DevOps connections.

    6.2 Pricing on request · 14-day trial Visit site
  25. 25

    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.

    6.1 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