Best 57 Python static analysis tools

Looks for programming errors, helps enforcing a coding standard and sniffs for some code smells. It additionally includes `pyreverse` (an UML diagram generator) and `symilar` (a similarities checker).

DeepCode finds bugs, security vulnerabilities, performance and API issues based on AI. DeepCode's speed of analysis allow us to analyse your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket and Gitlab.

Beautify HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more in Atom editor.

A tool to find common security issues in Python code.

The uncompromising Python code formatter.

Creates reports of over 400 rule patterns for feature detection (e.g. the use of cryptography or version control in apps).

Static code analysis for binary and source code - Java/Scala, PHP, Javascript, C#, PL/SQL, Python, T-SQL, C/C++, ObjectiveC/Swift, Visual Basic 6.0, Ruby, Delphi, ABAP, HTML5 and Solidity.

A linting engine supporting custom project-specific rules.

Commercial Static Code Analysis which runs locally, but uploads the results to its cloud for presentation.

Commercial Static Code Analysis which doesn't require pre-compilation.

Linter, formatter and test suite helper. As a linter, it is a wrapper around `pep8`, `pydocstyle`, `flake8`, and `pylint`.

Structural source code analyzer by NASA's Jet Propulsion Laboratory.

Automated code review tool integrates with GitHub, Bitbucket and GitLab (even self-hosted). Available for JavaScript, TypeScript, Python, Ruby, Go, PHP, Java, Docker, and more. (open-source free)

Static Code Analysis for C#, C, C++, CoffeeScript, CSS, Groovy, GO, JAVA, JavaScript, Less, Python, Ruby, Scala, SCSS, TypeScript.

CodeScene prioritizes technical debt, finds social patterns and identifies hidden risks in your code.

A tool for measuring Python class cohesion.

Synopsys Coverity supports 20 languages and over 70 frameworks including Ruby on rails, Scala, PHP, Python, JavaScript, TypeScript, Java, Fortran, C, C++, C#, VB.NET.

In-depth static analysis to monitor source code quality and security. Supports Python and Go and can detect 600+ types of issues in verticals of bug risks, security, anti-patterns, performance, documentation and style. Native integration with GitHub.

Regex-based static analysis tool for Visual Studio, VS Code, and Sublime Text - C/C++, C#, PHP, ASP, Python, Ruby, Java, and others.

A tool for ensuring Python code is secure.

Intelligent software analytics platform that identifies design issues, code issues, duplication and metrics. Supports Java, C, C++, C#, JavaScript, TypeScript, Python, Go, Kotlin and more.

A wrapper around `pyflakes`, `pycodestyle` and `mccabe`.

A commercial static analysis platform that supports the scanning of C/C++, C#, VB.NET, VB6, ABAP/BSP, ActionScript, Apex, ASP.NET, Classic ASP, VB Script, Cobol, ColdFusion, HTML, Java, JS, JSP, MXML/Flex, Objective-C, PHP, PL/SQL, T-SQL, Python (2.6, 2.7), Ruby (1.9.3), Swift, Scala, VB, and XML.

Combination of multiple linters to install as a GitHub Action.

Grep rough audit - source code auditing tool.

Comment on commits coming into your repository and check for syntactic errors and general lint warnings.

A multi-language static analyzer for C/C++/Obj-C/Python/Ruby to create a graph (in dot or graphml format) which shows all `#include` relations of a given set of files.

Autocompletion/static analysis library for Python.

Identify and remediate cyber threats in a blazingly fast, collaborative environment, with seamless integration in your SDLC. Python, C\C++, Java, C#, PHP and more.

Parse lint errors and report them to Github as comments on a pull request.

Check McCabe complexity.

A wrapper around `flake8`, `isort` and `modernize`.

A static type checker that aims to combine the benefits of duck typing and static typing, frequently used with [MonkeyType](https://github.com/Instagram/MonkeyType).

Facebook's tools for code analysis, visualizations, or style-preserving source transformation for many languages.

A wrapper around `pylint`, `pep8`, `mccabe` and others.

Find SQL injection vulnerabilities in Python code.

(Formerly `pep8`) Check Python code against some of the style conventions in PEP 8.

Check compliance with Python docstring conventions.

Check Python source files for errors.

A fast, scalable type checker for large Python codebases.

Static type checker for Python, created to address gaps in existing tools like mypy.

Rate how well a Python project complies with the best practices of the Python packaging ecosystem, and list issues that could be improved.

A static analysis tool for detecting security vulnerabilities in Python web applications.

A static type analyzer for Python code.

A Python tool that computes various metrics from the source code.

A static file linter that allows you to write custom rules using regular expressions (RegEx).

Free, open-source lightweight static analysis for many languages. Find and block bug variants with patterns that look like source code.

An automated code reviewing tool. Improving developers' productivity.

SAST tool which is capable of identifying vulnerabilities and undocumented features. The analyzer scans the source code and executables without debug info (i.e. binaries). Supports: Java/Scala/Kotlin, PHP, C#, JavaScript, TypeScript, VBScript, HTML5, Python, Perl, C/C++, Objective-C/Swift, PL/SQL, T-SQL, ABAP, 1C, Apex, Go, Ruby, Groovy, Delphi, VBA, Visual Basic 6, Solidity, Vyper, COBOL.

Vulnerability scanner for dependencies of node.js apps (free for Open Source Projects).

SonarQube is an open platform to manage code quality.

A commercial static analysis platform that allows for scanning of multiple languages (C/C++, Android, C#, Java, JS, PHP, Python, Node.JS, Ruby, Fortran, and Swift).

Universal code beautifier with a GitHub app. Supports HTML, CSS, JavaScript, TypeScript, JSX, Vue, C++, Go, Objective-C, Java, Python, PHP, GraphQL, Markdown, and more.

Find unused classes, functions and variables in Python code.

The strictest and most opinionated python linter ever.

A command-line tool for archiving, exploring and graphing the complexity of Python source code.

Monitor code complexity using [`radon`](https://github.com/rubik/radon).