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#code-quality (30 Repositories)

Ranked open-source repositories tagged with #code-quality, scored by pull request acceptance likelihood and maintainer engagement velocity.

Topic Avg Merge Rate

84.6%

Avg Review Latency

64.5h

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30 repositories tagged #code-quality

S TierGo 397

open-policy-agent/regal

Regal is a linter and language server for Rego, bringing your policy development experience to the next level!

94.1%
Merge Rate
11h
First Review
83%
1st-Timers
8
Maintainers
B TierRuby 4.9k

simplecov-ruby/simplecov

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

93.3%
Merge Rate
7h
First Review
80%
1st-Timers
1
Maintainers
B TierTypeScript 785

dadbodgeoff/drift

Codebase intelligence for AI. Detects patterns & conventions + remembers decisions across sessions. MCP server for any IDE. Offline CLI.

94.3%
Merge Rate
2d
First Review
100%
1st-Timers
0
Maintainers
A TierGo 151

ast-metrics/ast-metrics

See the invisible structure of your code. Multi-language code quality and architecture analyzer (Go, PHP, Python, Rust...)

90.5%
Merge Rate
10h
First Review
100%
1st-Timers
2
Maintainers
A TierJUJulia 127 1 GFIs

JuliaBesties/BestieTemplate.jl

Template for Julia Programming Language packages using the copier engine.

96.8%
Merge Rate
2d
First Review
100%
1st-Timers
2
Maintainers
A TierPython 543

duriantaco/skylos

Open source local-first PR scanner that finds dead code, security bugs, secrets, quality regressions, and AI-code mistakes before merge. For first timers refer to https://duriantaco.github.io/skylos/repo-map/

98.0%
Merge Rate
4d
First Review
100%
1st-Timers
3
Maintainers
A TierPython 1.1k 1 GFIs

PyCQA/flake8-bugbear

A plugin for Flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle.

88.2%
Merge Rate
14h
First Review
80%
1st-Timers
2
Maintainers
B TierRust 144

crabbuild/compass

Native, local-first knowledge graph engine for code and project artifacts—inspired by Graphify, built in Rust, and evolving beyond it.

95.4%
Merge Rate
3d
First Review
50%
1st-Timers
1
Maintainers
A TierJava 431

SonarSource/sonar-php

:elephant: SonarPHP: PHP static analyzer for SonarQube & SonarLint

87.0%
Merge Rate
2d
First Review
89%
1st-Timers
6
Maintainers
A TierC# 1.2k

meziantou/Meziantou.Analyzer

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

89.9%
Merge Rate
4d
First Review
100%
1st-Timers
6
Maintainers
A TierPython 795

rohaquinlop/complexipy

Blazingly fast cognitive complexity analysis for Python, written in Rust.

84.2%
Merge Rate
22h
First Review
100%
1st-Timers
3
Maintainers
A TierTypeScript 6.0k

kucherenko/jscpd

Copy/paste detector for programming source code, supports 223 formats. AI-ready with token-efficient reporter, skill and MCP server.

78.9%
Merge Rate
10h
First Review
80%
1st-Timers
6
Maintainers
A TierRust 4.4k

fallow-rs/fallow

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.

75.8%
Merge Rate
1d
First Review
90%
1st-Timers
9
Maintainers
A TierTypeScript 522 2 GFIs

truecourse-ai/truecourse

AI-powered architecture analysis and code intelligence. Detects circular deps, layer violations, dead modules, and more. Web UI + CLI.

78.1%
Merge Rate
1d
First Review
33%
1st-Timers
4
Maintainers
B TierJavaScript 670

shinpr/claude-code-workflows

Development workflows for Claude Code that keep broad exploration focused on the outcome you approved.

98.9%
Merge Rate
-
First Review
100%
1st-Timers
0
Maintainers
A TierTypeScript 265

SonarSource/sonarqube-cli

Command-line interface for SonarQube with AI agent integration. Scan for secrets and get fast feedback on code quality and security from your terminal.

89.4%
Merge Rate
6d
First Review
94%
1st-Timers
14
Maintainers
A TierJava 105

checkstyle/eclipse-cs

The Eclipse Checkstyle plug-in integrates the Checkstyle Java code auditor into the Eclipse IDE. The plug-in provides real-time feedback to the user about violations of rules that check for coding style and possible error prone code constructs.

98.6%
Merge Rate
10d
First Review
100%
1st-Timers
3
Maintainers
A TierC# 498

SonarSource/sonarlint-visualstudio

SonarQube extension for Visual Studio providing code quality and security feedback directly in the IDE

84.3%
Merge Rate
3d
First Review
56%
1st-Timers
2
Maintainers
B TierRust 400

agent-sh/agnix

The missing linter and lsp for AI coding assistants. Validate CLAUDE.md, AGENTS.md, SKILL.md, hooks, MCP. Plugin for all major IDEs included, with autofixes.

91.8%
Merge Rate
6d
First Review
75%
1st-Timers
1
Maintainers
B TierJavaScript 1.5k

ehmicky/modern-errors

Handle errors in a simple, stable, consistent way

92.9%
Merge Rate
-
First Review
100%
1st-Timers
0
Maintainers
A TierJava 5.5k

pmd/pmd

An extensible multilanguage static code analyzer.

82.8%
Merge Rate
1d
First Review
80%
1st-Timers
30
Maintainers
A TierJava 632

SonarSource/sonarqube-mcp-server

Official SonarQube MCP Server for code quality and security in AI agents

84.7%
Merge Rate
6d
First Review
85%
1st-Timers
13
Maintainers
A TierMDMDX 7.0k

detekt/detekt

Static code analysis for Kotlin

52.8%
Merge Rate
3h
First Review
71%
1st-Timers
14
Maintainers
A TierJava 9.1k 1 GFIs

checkstyle/checkstyle

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.

63.8%
Merge Rate
2d
First Review
51%
1st-Timers
57
Maintainers
A TierKotlin 638

SonarSource/sonarlint-intellij

SonarQube plugin for JetBrains IDEs providing code quality and security feedback directly in the IDE

83.7%
Merge Rate
6d
First Review
90%
1st-Timers
2
Maintainers
B TierPHP 4.3k

phpro/grumphp

A PHP code-quality tool

100.0%
Merge Rate
20h
First Review
100%
1st-Timers
1
Maintainers
A TierTypeScript 1.3k

SonarSource/SonarJS

SonarSource Static Analyzer for JavaScript and TypeScript

81.5%
Merge Rate
9d
First Review
73%
1st-Timers
14
Maintainers
B TierGo 636

editorconfig-checker/editorconfig-checker

A tool to verify that your files are in harmony with your .editorconfig

56.5%
Merge Rate
3h
First Review
71%
1st-Timers
9
Maintainers
B TierJava 271

SonarSource/sonarlint-eclipse

SonarQube plugin for Eclipse providing code quality and security feedback directly in the IDE

83.9%
Merge Rate
9d
First Review
100%
1st-Timers
4
Maintainers
B TierOCOCaml 15.7k

facebook/infer

A static analyzer for Java, C, C++, and Objective-C

48.9%
Merge Rate
24h
First Review
63%
1st-Timers
7
Maintainers
Best Code-quality Open Source Repositories & C-Rankā„¢ | GetMerged