Static analysis that's actually fast enough to run on every pull request - the rule syntax is simple enough that teams write their own custom checks instead of just accepting defaults.
Where semgrep fits, based on its real tags and topics.
git clone https://github.com/semgrep/semgrep.gitSee the repository's README for language-specific setup steps.
Semgrep is a fast, open-source, static analysis tool that searches code, finds bugs, and enforces secure guardrails and coding standards. Semgrep supports 30+ languages and can run in an IDE, as a pre-commit check, and as part of CI/CD workflows.
Semgrep is semantic grep for code. While running `grep "2"` would only match the exact string _2_, Semgrep would match `x = 1; y = x + 1` when searching for _2_. Semgrep rules look like the code you already write; no abstract syntax trees, regex wrestling, or painful DSLs.
Note that in security contexts, Semgrep Community Edition will miss many true positives as it can only analyze code within the boundaries of a single function or file. If you want to use Semgrep for security purposes (**SAST**, **SCA**, or **secrets scanning**), the Semgrep AppSec Platform is strongly recommended since it adds the following critical capabilities:
Category: 🔒 Security
Difficulty: Intermediate
Part of: Security Toolkit
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