Klocwork vs Frama-C

Klocwork7.7Visit FCFrama-C6.6Visit

Higher score Klocwork #3 in C and C++ Static Analysis Tools 7.7/10 Pricing on request ✓ 0 of 6 features Visit Perforce

vs

FC Frama-C #8 in C and C++ Static Analysis Tools 6.6/10 Free plan Free plan✓ 0 of 6 features Visit Frama-C

• Klocwork fits best

  Mid-market and enterprise teams with complex codebases

• Frama-C fits best

  C teams needing free formal verification tools

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Side by side

Feature	Klocwork 7.7/10 Visit ↗	FCFrama-C 6.6/10 Visit ↗
At a glance
Editor score	7.7	6.6
Ranking	#3 in C and C++ Static Analysis Tools	#8 in C and C++ Static Analysis Tools
Best for	Mid-market and enterprise teams with complex codebases	C teams needing free formal verification tools
Pricing model	Paid	Free
Starting price	Not published	Not published
Free plan	Not published	✓ (best)
Free trial	—	—
Deployment	Self-hosted, Cloud	Self-hosted, Desktop
Platforms	Web, Windows, Linux	Windows, macOS, Linux
Support	Email, Phone, Tickets, Community, Docs	Docs
Integrations	10 integrations	5 integrations
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Klocwork 0/6 · Frama-C 0/6
Memory defect detection	Not published	Not published
Security analysis	Not published	Not published
Coding-rule checks	Not published	Not published
Concurrency analysis	Not published	Not published
MISRA support	Not published	Not published
Taint analysis	Not published	Not published
Our review
Pros	Checks security, reliability, quality, and coding-standard issues Differential analysis and configurable quality gates support CI workflows IDE plugins, custom checker creation, and cloud or self-hosted deployment	Combines value analysis, deductive verification and runtime assertion checking Connects with Alt-Ergo, CVC5, Z3, Coq and Why3 Offers graphical and command-line workflows on Windows, macOS and Linux
Cons	Pricing is available by contacting sales rather than through public plans No permanent free plan; a free trial requires a request Its broad workflow may exceed the needs of teams seeking only a narrow checker	Verified input is limited to C and ACSL rather than C++ Self-hosted deployment requires local installation and maintenance Documentation is the listed support channel
Our verdict	Klocwork from Perforce combines static application security testing with static code analysis for teams responsible for complex source-code projects. Its checks cover security vulnerabilities, reliability defects, quality issues, and… Read the review →	Frama-C is an open-source framework for analyzing and verifying C programs with formal methods. It is suited to small, mid-market and enterprise teams working on software assurance, including safety- and security-critical development, as… Read the review →

Strengths and trade-offs

• Klocwork — where it wins

  • Checks security, reliability, quality, and coding-standard issues
  • Differential analysis and configurable quality gates support CI workflows
  • IDE plugins, custom checker creation, and cloud or self-hosted deployment

  Where it doesn't

  • Pricing is available by contacting sales rather than through public plans
  • No permanent free plan; a free trial requires a request
  • Its broad workflow may exceed the needs of teams seeking only a narrow checker

• Frama-C — where it wins

  • Combines value analysis, deductive verification and runtime assertion checking
  • Connects with Alt-Ergo, CVC5, Z3, Coq and Why3
  • Offers graphical and command-line workflows on Windows, macOS and Linux

  Where it doesn't

  • Verified input is limited to C and ACSL rather than C++
  • Self-hosted deployment requires local installation and maintenance
  • Documentation is the listed support channel

• Klocwork7.7/10 · Pricing on request

  Broad C and C++ analysis with differential scans, configurable gates, and custom checks.

  Visit PerforceFull verdict →
• FCFrama-C6.6/10 · Free plan

  A free, self-hosted C verification framework with broad formal-analysis plug-ins.

  Visit Frama-CFull verdict →