JavaScript

The Best JavaScript Static Analysis Tools (Linters/Formatters)

We rank 105 JavaScript linters, code analyzers, formatters, and more. Find and compare tools like Mega-Linter, Semgrep, ESLint, and more. Please rate and review tools that you've used. This helps others find the best tools for their projects.

25 JavaScript Tools

Esprima

ECMAScript parsing infrastructure for multipurpose analysis.

NodeJSScan

A static security code scanner for Node.js applications powered by libsast and semgrep that builds on the njsscan cli tool. It features a UI with various dashboards about an application's security status.

RSLint

A (WIP) JavaScript linter written in Rust designed to be as fast as possible, customizable, and easy to use.

Closure Compiler

A compiler tool to increase efficiency, reduce size, and provide code warnings in JavaScript files.

es6-plato

Visualize JavaScript (ES6) source complexity.

flow

A static type checker for JavaScript.

standard

An npm module that checks for Javascript Styleguide issues.

aether

Lint, analyze, normalize, transform, sandbox, run, step through, and visualize user JavaScript, in node or the browser.

ClosureLinter

Ensures that all of your project's JavaScript code follows the guidelines in the Google JavaScript Style Guide. It can also automatically fix many common errors.

complexity-report

Software complexity analysis for JavaScript projects.

DeepScan

An analyzer for JavaScript which targets runtime errors and quality issues rather than coding conventions.

escomplex

Software complexity analysis of JavaScript-family abstract syntax trees.

hegel

A static type checker for JavaScript with a bias on type inference and strong type systems.

jshint

Detect errors and potential problems in JavaScript code and enforce your team's coding conventions.

JSLint

The JavaScript Code Quality Tool.

JSPrime

Static security analysis tool.

Polymer-analyzer

A static analysis framework for Web Components.

retire.js

Scanner detecting the use of JavaScript libraries with known vulnerabilities.

tern

A JavaScript code analyzer for deep, cross-editor language support.

TypL

With TypL, you just write completely standard JS, and the tool figures out your types via powerful inferencing.

xo

Opinionated but configurable ESLint wrapper with lots of goodies included. Enforces strict and readable code.

yardstick

Javascript code metrics.

Jalangi2

Jalangi2 is a popular framework for writing dynamic analyses for JavaScript.

plato

Visualize JavaScript source complexity.

Iroh.js

A dynamic code analysis tool for JavaScript. Iroh allows to record your code flow in realtime, intercept runtime informations and manipulate program behaviour on the fly.

80 Multi-Language Tools

Mega-Linter

Mega-Linter can handle any type of project thanks to its 70+ embedded Linters, its advanced reporting, runnable on any CI system or locally, with assisted installation and configuration, able to apply formatting and fixes

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 68% upvoted

Semgrep

Sponsor

A fast, open-source, static analysis tool for finding bugs and enforcing code standards at editor, commit, and CI time. Its rules look like the code you already write; no abstract syntax trees or regex wrestling. Supports 17+ languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 82% upvoted

ESLint

An extensible linter for JS, following the ECMAScript standard.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 91% upvoted

SonarQube

SonarQube empowers development teams with a code quality and security solution that deeply integrates into your enterprise environment; enabling you to deploy clean code consistently and reliably. SonarQube provides a free and open source Community Edition.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 70% upvoted

Bearer

Open-Source static code analysis tool to discover, filter and prioritize security risks and vulnerabilities leading to sensitive data exposures (PII, PHI, PD). Highly configurable and easily extensible, built for security and engineering teams.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 96% upvoted

Sonatype

Reports known vulnerabilities in common dependencies and recommends updated packages to minimize breaking changes

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 77% upvoted

Prettier

An opinionated code formatter.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedformatter
  • 91% upvoted

ThreatMapper

Vulnerability Scanner and Risk Evaluation for containers, serverless and hosts at runtime. ThreatMapper generates runtime BOMs from dependencies and operating system packages, matches against multiple threat feeds, scans for unprotected secrets, and scores issues based on severity and risk-of-exploit.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 91% upvoted

CodeScene

CodeScene is a quality visualization tool for software. Prioritize technical debt, detect delivery risks, and measure organizational aspects. Fully automated.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 64% upvoted

DeepSource

In-depth static analysis to find issues in verticals of bug risks, security, anti-patterns, performance, documentation and style. Native integrations with GitHub, GitLab and Bitbucket. Less than 5% false positives.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 76% upvoted

trunk

Modern repositories include many technologies, each with its own set of linters. With 30+ linters and counting, Trunk makes it dead-simple to identify, install, configure, and run the right linters, static analyzers, and formatters for all your repos.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • MaintainedlinterMaintainedformatter
  • 85% upvoted

Coverity

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.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 65% upvoted

Better Code Hub

Better Code Hub checks your GitHub codebase against 10 engineering guidelines devised by the authority in software quality, Software Improvement Group.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 77% upvoted

callGraph

Statically generates a call graph image and displays it on screen.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 84% upvoted

DeepCode

DeepCode was acquired by Snyk is now Snyk Code.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedservice
  • Deprecatedlinter
  • 61% upvoted

Codacy

Code Analysis to ship Better Code, Faster.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 72% upvoted

PMD

A source code analyzer for Java, Salesforce Apex, Javascript, PLSQL, XML, XSL and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 79% upvoted

codeql

Deep code analysis - semantic queries and dataflow for several languages with VSCode plugin support.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedserviceMaintainedide-plugin
  • Maintainedlinter
  • 85% upvoted

ReSharper

Extends Visual Studio with on-the-fly code inspections for C#, VB.NET, ASP.NET, JavaScript, TypeScript and other technologies.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Codeac

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)

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 89% upvoted

Checkmarx CxSAST

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

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 56% upvoted

Offensive 360

Sponsor

Commercial Static Code Analysis system doesn't require building the source code or pre-compilation.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 88% upvoted

Application Inspector

Commercial Static Code Analysis which generates exploits to verify vulnerabilities.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 75% upvoted

Atom-Beautify

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

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedide-plugin
  • Deprecatedlinter
  • 64% upvoted

biome

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome formats and lints code in a fraction of a second. It is the successor to Rome. It is designed to eventually replace Biome is designed to eventually replace Babel, ESLint, webpack, Prettier, Jest, and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Codiga

Automated Code Reviews and Technical Debt management platform that supports 12+ languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 80% upvoted

Kiuwan

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.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 67% upvoted

TencentCodeAnalysis

Tencent Cloud Code Analysis (TCA for short, code-named CodeDog inside the company early) is a comprehensive platform for code analysis and issue tracking. TCA consist of three components, server, web and client. It integrates of a number of self-developed tools, and also supports dynamic integration of code analysis tools in various programming languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 100% upvoted

trivy

A Simple and Comprehensive Vulnerability Scanner for Containers and other Artifacts, Suitable for CI. Trivy detects vulnerabilities of OS packages (Alpine, RHEL, CentOS, etc.) and application dependencies (Bundler, Composer, npm, yarn, etc.). Checks containers and filesystems.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 80% upvoted

Unibeautify

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.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • DeprecatedcliDeprecatedservice
  • Deprecatedformatter
  • 67% upvoted

Betterscan CE

Sponsor

Checks your code and infra (various Git repositories supported, cloud stacks, CLI, Web Interface platform, integrationss available) for security and quality issues. Code Scanning/SAST/Linting using many tools/Scanners deduplicated with One Report (AI optional).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

lizard

Lizard is an extensible Cyclomatic Complexity Analyzer for many programming languages including C/C++ (doesn't require all the header files or Java imports). It also does copy-paste detection (code clone detection/code duplicate detection) and many other forms of static code analysis. Counts lines of code without comments, CCN (cyclomatic complexity number), token count of functions, parameter count of functions.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

oxc

The Oxidation Compiler is creating a suite of high-performance tools for the JavaScript / TypeScript language re-written in Rust.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • MaintainedlinterMaintainedformatter
  • 100% upvoted

parasoft

Automated Software Testing Solutions for unit-, API-, and web UI testing. Complies with MISRA, OWASP, and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Putout

Pluggable and configurable code transformer with built-in eslint, babel plugins support for js, jsx typescript, flow, markdown, yaml and json.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

Scrutinizer

A proprietary code quality checker that can be integrated with GitHub.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Synopsys

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).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 75% upvoted

todocheck

Linter for integrating annotated TODOs with your issue trackers

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 67% upvoted

ale

Asynchronous Lint Engine for Vim and NeoVim with support for many languages.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedide-plugin
  • Maintainedlinter
  • 67% upvoted

CAST Highlight

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

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 60% upvoted

CodeQue

Ecosystem for structural matching JavaScript and TypeScript code. Offers search tool that understands code structure. Available as CLI tool and Visual Studio Code extension. It helps to search code faster and more accurately making you workflow more effective. Soon it will offer ESLint plugin to create your own rules in minutes to help with assuring codebase quality.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedide-plugin
  • Maintainedlinter
  • 100% upvoted

CodeSee

CodeSee is mapping and automating your app's services, directories, file dependencies, and code changes. It's like Google Map, but for code.t

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedserviceMaintainedide-plugin
  • Maintainedlinter
  • 100% upvoted

cqc

Check your code quality for js, jsx, vue, css, less, scss, sass and styl files.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 100% upvoted

Fortify

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.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedide-plugin
  • Maintainedlinter
  • 51% upvoted

Hound CI

Comments on style violations in GitHub pull requests. Supports Coffeescript, Go, HAML, JavaScript, Ruby, SCSS and Swift.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 54% upvoted

imhotep

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

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedmeta
  • 100% upvoted

pfff

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

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedformatter
  • 60% upvoted

Snyk Code

Snyk Code finds security vulnerabilities based on AI. Its 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, JavaScript, Python, PHP, C#, Go and TypeScript. Integrations with GitHub, BitBucket and Gitlab. It is free to try and part of the Snyk platform also covering SCA, containers and IaC.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Upsource

Code review tool with static code analysis and code-aware navigation for Java, PHP, JavaScript and Kotlin.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 100% upvoted

Veracode

Find flaws in binaries and bytecode without requiring source. Support all major programming languages: Java, .NET, JavaScript, Swift, Objective-C, C, C++ and more.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 57% upvoted

WhiteHat Application Security Platform

WhiteHat Scout (for Developers) combined with WhiteHat Sentinel Source (for Operations) supporting WhiteHat Top 40 and OWASP Top 10.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 100% upvoted

ApplicationInspector

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

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

autocorrect

A linter and formatter to help you to improve copywriting, correct spaces, words, punctuations between CJK (Chinese, Japanese, Korean).

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • MaintainedlinterMaintainedformatter
  • 0% upvoted

coala

Language independent framework for creating code analysis - supports over 60 languages by default.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

codeburner

Provides a unified interface to sort and act on the issues it finds.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedmeta
  • 0% upvoted

CodeFactor

Automated Code Analysis for repos on GitHub or BitBucket.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 50% upvoted

CodeFlow

Automated code analysis tool to deal with technical depth. Integrates with Bitbucket and Gitlab. (free for Open Source Projects)

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 50% upvoted

CodePatrol

Automated SAST code reviews driven by security, supports 15+ languages and includes security training.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

ezno

A JavaScript compiler and TypeScript checker written in Rust with a focus on static analysis and runtime performance. Ezno's type checker is built from scratch. The checker is fully compatible with TypeScript type annotations and can work without any type annotations at all.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Mobb

Mobb is a trusted, automatic vulnerability fixer that secures applications, reduces security backlogs, and frees developers to focus on innovation. Mobb is free for open-source projects.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • MaintainedlinterMaintainedformatter
  • 0% upvoted

OpenStaticAnalyzer

OpenStaticAnalyzer is a source code analyzer tool, which can perform deep static analysis of the source code of complex systems.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

PT.PM

An engine for searching patterns in the source code, based on Unified AST or UST. At present time C#, Java, PHP, PL/SQL, T-SQL, and JavaScript are supported. Patterns can be described within the code or using a DSL.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

pylama

Code audit tool for Python and JavaScript. Wraps pycodestyle, pydocstyle, PyFlakes, Mccabe, Pylint, and more

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Qwiet AI

Identify vulnerabilities that are unique to your code base before they reach production. Leverages the Code Property Graph (CPG) to run its analyses concurrently in a single graph of graphs. Automatically finds business logic flaws in dev like hardcoded secrets and logic bombs

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

relint

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

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

SafeQL

Validate and auto-generate TypeScript types from raw SQL queries in PostgreSQL. SafeQL is an ESLint plugin for writing SQL queries in a type-safe way.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

Semgrep Supply Chain

Quickly find and remediate high-priority security issues. Semgrep Supply Chain prioritizes the 2% of vulnerabilities that are reachable from your code.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

Sigrid

Sigrid helps you to improve your software by measuring your system's code quality, and then compares the results against a benchmark of thousands of industry systems to give you concrete advice on areas where you can improve.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 50% upvoted

SonarCloud

SonarCloud enables your team to deliver clean code consistently and efficiently with a code review tool that easily integrates into the cloud DevOps platforms and extend your CI/CD workflow. SonarCloud is free for open source projects.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 50% upvoted

StaticReviewer

Static Reviewer executes code checks according to the most relevant Secure Coding Standards, OWASP, CWE, CVE, CVSS, MISRA, CERT, for 40+ programming languages, using 1000+ built-in validation rules for Security, Deadcode & Best Practices Available a module for Software Composition Analysis (SCA) to find vulnerabilities in open source and third party libraries.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

Super-Linter

Combination of multiple linters to install as a GitHub Action.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

WALA

Static analysis capabilities for Java bytecode and related languages and for JavaScript.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 50% upvoted

Wotan

Pluggable TypeScript and JavaScript linter.

  • DeprecatedDeprecated
  • DeprecatedMulti-Language
  • Deprecatedcli
  • Deprecatedlinter
  • 0% upvoted

emerge

Emerge is a source code and dependency visualizer that can be used to gather insights about source code structure, metrics, dependencies and complexity of software projects. After scanning the source code of a project it provides you an interactive web interface to explore and analyze your project by using graph structures.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • MaintainedcliMaintainedservice
  • Maintainedlinter
  • 33% upvoted

Pronto

Quick automated code review of your changes. Supports more than 40 runners for various languages, including Clang, Elixir, JavaScript, PHP, Ruby and more.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

SonarLint

SonarLint is a free IDE extension available for IntelliJ, VS Code, Visual Studio, and Eclipse, to find and fix coding issues in real-time, flagging issues as you code, just like a spell-checker. More than a linter, it also delivers rich contextual guidance to help developers understand why there is an issue, assess the risk, and educate them on how to fix it.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 0% upvoted

HCL AppScan Source

Commercial Static Code Analysis.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 40% upvoted

LGTM

Find security vulnerabilities, variants, and critical code quality issues using CodeQL queries over source code. Automatic PR code review; free for open source. Formerly semmle. It supports public Git repositories hosted on Bitbucket Cloud, GitHub.com, GitLab.com.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 0% upvoted

Understand

Code visualization tool that provides code analysis, standards testing, metrics, graphing, dependency analysis and more for Ada, VHDL, and others.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedcli
  • Maintainedlinter
  • 47% upvoted

Embold

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.

  • MaintainedMaintained
  • MaintainedMulti-Language
  • Maintainedservice
  • Maintainedlinter
  • 13% upvoted

Frequently Asked Questions

What are JavaScript tools?

Alongside HTML and CSS, JavaScript is one of the core technologies of the World Wide Web. JavaScript enables interactive web pages and is an essential part of web applications. The vast majority of websites use it for client-side page behavior, and all major web browsers have a dedicated JavaScript engine to execute it.

What are the best JavaScript static analysis tools and linters?

The most popular JavaScript tools ranked by user votes are: Mega-Linter, Semgrep, ESLint, SonarQube, Bearer.

Which JavaScript tools are free to use?

Tools with a free plan include DeepSource, trunk, Better Code Hub, Codiga, CodeSee, OpenStaticAnalyzer, Embold. On top of that, there are also a number of open source like Mega-Linter, Semgrep, ESLint, SonarQube, Bearer, Sonatype, Prettier, ThreatMapper, trunk, callGraph.

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