What Sets Them Apart
Developer security tooling has matured significantly, with Snyk, Semgrep, and SonarQube representing three distinct philosophies. Each covers static analysis but differs in scope, speed, extensibility, and pricing model.
Playwright, Cypress, and Selenium at a Glance
Snyk provides the broadest coverage with four products: Snyk Code (SAST), Snyk Open Source (SCA for dependency vulnerabilities), Snyk Container (image scanning), and Snyk IaC (infrastructure as code). The platform integrates everywhere developers work — IDEs, Git platforms, CI/CD, and container registries. AI-powered fix suggestions generate remediation PRs. The proprietary vulnerability database is continuously updated. Free for individual developers, Team plans from $25/user/month.
Semgrep takes a speed-first approach to static analysis. Written rules use a lightweight YAML syntax that any developer can read and write, running 10-20x faster than traditional SAST tools. The community rule registry provides 3,000+ pre-built rules. The commercial AppSec Platform adds SCA, secrets detection, and AI-powered triage. Semgrep excels when teams need custom rules tailored to their codebase conventions and internal security standards. Open-source core with Team plans from $110/contributor/month.
SonarQube is the established standard for code quality management, used by over 400,000 organizations. It goes beyond security to cover bugs, code smells, duplicated code, and technical debt across 30+ languages. Quality gates enforce pass/fail criteria in CI/CD pipelines. The Community Edition is free and open-source. Developer Edition adds branch analysis and PR decoration. Enterprise and Data Center editions provide governance and high availability.
Architecture, Browser Support, and Debugging
For teams choosing: Snyk if you need the broadest security coverage across code, dependencies, containers, and IaC in one platform. Semgrep if speed and custom rule authoring are priorities, especially for teams with unique security patterns. SonarQube if code quality management is as important as security, and you want the most mature quality gate system in CI/CD.