Best Code Analysis Products in 2025

SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.

Open Source freemium $150.0 / Annually

The fully pluggable JavaScript code quality tool

Open Source

An opinionated code formatter

Open Source

Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.

The industry’s most comprehensive AppSec platform, Checkmarx One is fast, accurate, and accelerates your business.

Find and fix defects in your Java, C/C++ or C# open source project for free

Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.

Open Source

Snyk helps you use open source and stay secure. Continuously find and fix vulnerabilities for npm, Maven, NuGet, RubyGems, PyPI and much more.

Open Source

Veracode's application security software products are simpler and more scalable to increase the resiliency of your application infrastructure.

Cppcheck is an analysis tool for C/C++ code. It detects the types of bugs that the compilers normally fail to detect. The goal is no false positives. CppCheckDownload cppcheck for free.

Open Source

ReSharper is a productivity tool for visual studio that provides tools and features to help you manage your code.

Pylint is a Python source code analyzer which looks for programming errors.

Diff Text is an online diff text tool

free