Snyk vs Semgrep: SCA Platform vs Custom SAST Rules in 2026

Quick verdict Snyk and Semgrep are two of the most widely adopted application security tools in 2026, but they approach the problem from fundamentally different directions. Snyk is a developer security platform that covers the entire application stack - SCA (dependency vulnerabilities), SAST (code-level bugs), container image scanning, and infrastructure-as-code security - with a signature focus on automated remediation through fix pull requests. Semgrep is a lightweight, programmable SAST engine built around custom rules that mirror the syntax of the target language, giving development and security teams an unmatched ability to encode organization-specific security policies and scan at blazing speed. If dependency vulnerability management is your top priority, choose Snyk. Its SCA engine monitors over 15 million open-source packages, maintains a proprietary vulnerability database updated by a dedicated research team, and automatically opens pull requests that upgrade vulnerable depend