Open-source alternatives to RefactorFirst

Mix tasks to simplify use of Dialyzer in Elixir projects.

This project is a comprehensive, curated directory of static analysis, linting, and security scanning utilities. It serves as a central resource for developers to discover, compare, and select tools based on specific programming languages, licensing models, and integration requirements. The directory distinguishes itself by providing deep metadata for each listed utility, including community-driven popularity rankings, maintenance status, and deployment methods. By aggregating these tools into a single searchable index, it enables teams to identify solutions for enforcing coding standards, ma

Erlang Style Reviewer

Flake8 is a Python style checker and static analysis tool that identifies programmatic errors and violations of coding standards in source files. It serves as a linting wrapper that aggregates multiple checkers into a single interface, functioning as a pluggable framework for Python code analysis. The tool incorporates a cyclomatic complexity analyzer to measure the logical complexity of functions and identify code that requires refactoring. It is designed for extensibility, allowing the integration of custom plugins and rules through defined entry points. The system provides capabilities fo

Credo is a static analysis tool and linter for Elixir. It functions as a code quality analyzer that scans source code to identify stylistic inconsistencies, common mistakes, and potential security vulnerabilities. The tool provides a customizable framework for defining and testing specialized rules to enforce project-specific coding standards. It identifies complex code fragments and duplication to highlight opportunities for refactoring and simplification. Its capabilities cover automated code reviews, the enforcement of Elixir coding standards, and real-time developer feedback through edit

NullAway is a Java static analysis tool and build-time detector designed to identify null pointer risks. It functions as a nullability checker that uses annotations to verify that references are not null before they are dereferenced, preventing runtime crashes. The analyzer implements the JSpecify standard to ensure consistent nullability annotations across different Java libraries. It distinguishes itself through the use of a service provider interface to model the nullability behavior of third-party libraries that lack source annotations and by providing specialized support for Lombok-gener

This browser extension is a source code linker for GitHub that identifies language-specific import and include declarations and converts them into direct navigation links. It serves as a productivity tool for browsing repositories by simplifying the process of jumping between linked files and dependencies. The extension optimizes the developer workflow by transforming static import statements into clickable hyperlinks, reducing the need to manually search for files. This functionality supports source code reviews and the tracing of dependencies during browser-based audits of GitHub repositori

Standalone twig linter.

p3c is a Java static analysis tool and code quality linter designed to enforce professional coding guidelines and quality standards. It utilizes a set of custom rules based on the PMD engine to scan source code for style violations, performance bottlenecks, and potential bugs. The project is distributed as an IDE linting plugin that provides real-time feedback and warnings during development. It also includes functionality for pre-commit code quality gates, allowing modified files to be scanned and blocked if they violate defined rules before being committed to version control. The analysis

Ruff is a high-performance static analysis and code formatting tool designed for Python. Built in Rust, it functions as a comprehensive engine that scans source code to detect programming errors, security vulnerabilities, and deviations from established coding standards. By parsing source code into a structured tree representation, it provides both automated linting and style enforcement across entire projects. The tool distinguishes itself through its speed and deep integration into the development lifecycle. It utilizes parallelized file processing to maximize throughput on large codebases

A Github Action to statically validate Fastlane metadata for Android (supply).

GitHub action to run Go lint checks on PR event

Coverage Reports for Elixir

dogsled is a Go static analysis tool to find assignments/declarations with too many blank identifiers.

Static analyzer and linter for Clojure code that sparks joy

Shellharden is a shell script hardening tool and linter designed to improve the security and reliability of Bash scripts. It functions as an automated utility that rewrites scripts to follow industry standards for quoting and security practices. The project provides an optimizer and standardizer that replaces unsafe patterns and aliases with safer functional equivalents. It includes a syntax highlighter that uses visual markers and colorization to indicate vulnerabilities and areas where quoting corrections are required. The tool covers a broad range of capabilities including automated safet

␊ whitespace linter - Forces you to use empty lines!

A GitHub action to run hadolint and reports violations given a Dockerfile within a repository

Detect concurrency and memory bugs and possible panic locations in Rust projects

PHPStan CakePHP

dbcritic finds problems in a database schema.

Checkstyle is a Java static analysis tool and linter designed to identify and enforce coding standards and best practices. It functions as a code quality auditor and Javadoc validation tool, checking source code against configurable rulesets to ensure structural and stylistic consistency. The project allows for the creation of custom linting rules by extending a core API to inspect the abstract syntax tree. It further enables specialized validation through the use of XPath expressions to query the syntax tree for specific code patterns and violations. Capability areas include the enforcement

Github Action helps you check your code with PHP_CodeSniffer

Discover files in need of refactoring.