Side by side
Clang Static Analyzer vs Semgrep Code
Both stand on c and c++ static analysis tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Clang Static Analyzer offers free, self-hosted analysis for three languages, with command-line and potential IDE integration. Its limited detection scope, runtime, and possible false positives matter when interpreting results.
Visit Clang Static Analyzer
Free plan Open source APIExtensionLinux+4
Semgrep Code pairs static analysis with AI analysis and remediation guidance for findings. The Free Edition has repository and contributor caps; paid options include Teams at $30/month/contributor and an Enterprise plan with no repository or contributor limit.
Visit Semgrep CodeThe facts
| Clang Static Analyzer | Semgrep Code | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Linux, Mac, Windows | API, Extension, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Free or on request | Teams Secrets: $15 per contributor a month |
| Plans published | 1 | 6 |
| Maker | Not published | Not published |
| Website | clang-analyzer.llvm.org | semgrep.dev |
| On c and c++ static analysis tools | #3 of 25 | #1 of 25 |
Clang Static Analyzer: what it does well
- Free and open source
- Supports C, C++, and Objective-C
- Includes scan-build for command-line analysis
- Can run alongside clang-tidy
- Clang-based IDEs may integrate it natively
What to know first
- Analysis can take longer than compilation
- Some algorithms have exponential worst-case time
- May report false positives
- Detects only bugs it was engineered to find
Semgrep Code: what it does well
- Supports 35+ programming languages.
- Provides remediation instructions in pull requests.
- Integrates with source-control and CI tools.
- Free Edition allows up to 10 repositories.
- Local and fully CI-based scans keep code in the user's environment.
What to know first
- Free Edition allows a maximum of 10 contributors.
- Teams is limited to 500 private repositories.
- AI processing sends part of a finding's file to a model.
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