Static code analysis tools for your TypeScript
Utilize static code analysis to find issues in TypeScript such as bugs, code smells & security vulnerabilities. Use the Sonar language analyzer with hundreds of rules to evaluate your code and ensure the security, reliability and maintainability of your software.
Type-aware
The analysis relies on type information and provides you with rules targeting TypeScript-specific syntax.
Quick fixes
Allow you to effortlessly repair your TypeScript coding issues with just a click.
Multi-language codebases
Support multiple languages in your codebase side-by-side: JavaScript, CSS & back-end languages too!
Own the code security of your TypeScript
Dedicated static code analysis rules to detect vulnerabilities including ones stemming from OWASP & CWE Top 25 guidelines.
SonarQube code analysis finds issues while you focus on the work
It all comes from a powerful static analysis engine that we constantly refine. SonarQube Server and Cloud employ advanced rules along with smart, exclusive static code analysis techniques to find the trickiest, most elusive issues, code smells, and security vulnerabilities.
Precise static analysis
Deep static analysis of your code through symbolic execution, path sensitive analysis & cross-function/cross file taint analysis.
Fast issue resolution
Issue contextualization with secondary locations highlighted and clear remediation guidance helps you understand and construct a fix.
Minimal distractions
Automatic pull request analysis with results displayed in the comments of your favorite DevOps platform so you stay in the zone.
Produce secure, reliable and maintainable software
Sonar brings integrated code quality and security to where your code lives. Sonar is tightly integrated with your CI/CD workflow to feed you the right info at the right time and place.
TypeScript in your IDE
SonarQube for IDE in your IDE is your first line of defense for keeping the code you write today clean and secure. Issues are raised in-line with clear rule descriptions and guidance.
With SonarQube for IDE, the impact is immediate and no configuration is required. You learn from the real-time feedback provided and quickly resolve issue with contextual guidance and automatic Quick Fixes!
SonarQube for IDE is available from your IDE marketplace:
Visual Studio | VS Code | JetBrains | Eclipse
TypeScript in your workflow
Automatically analyze Pull Requests and feature branches with the results decorated in the DevOps platform of your choice.
Your team can share rule configurations and exclusions across projects and coalesce on a shared definition of excellence. The project Quality Gate is visible to everyone and the releasabity status is clear.
SonarQube Cloud tightly integrates with:
GitHub | Bitbucket | Azure DevOps | GitLab
Language Versions
Through TypeScript 5.9.3
Frameworks
React JSX, Angular, Vue.js, Node.js, Express, Flow
Test Frameworks
Mocha, Chai
Cloud Native App Support
Dedicated AWS CDK rules to find vulnerabilities in cloud infrastructures described by JS/TS
Database APIs
Sequelize, pg, pg-pool, pg-promise, mysql, mysql2, sqlite3, better-sqlite3, knex, MongoDB node.js, Mongoose ODM
Start cleaning your TypeScript code
What is the What is TypeScript and why do developers use it? between debugging and testing?
TypeScript is a statically typed superset of JavaScript that adds features like type annotations, interfaces, and stronger tooling support while still compiling to standard JavaScript. Developers use TypeScript to catch bugs earlier, improve readability in large codebases, make refactoring safer, and create more maintainable applications with stronger code quality practices.
How does TypeScript improve code quality?
TypeScript improves code quality by detecting type-related issues before runtime, making application behavior more predictable, and helping teams enforce clearer contracts between functions, components, and modules. It also improves editor support, autocomplete, and navigation, which helps developers write more reliable code and maintain consistent standards across growing projects.
Can SonarQube analyze TypeScript code?
Yes, SonarQube can analyze TypeScript code to help teams detect bugs, vulnerabilities, and maintainability issues in their projects. It gives developers visibility into code health problems during development and in CI/CD pipelines, making it easier to improve quality and security from the start and maintain healthier codebases over time.
What issues can SonarQube detect in TypeScript projects?
In TypeScript projects, SonarQube can help detect a wide range of issues including potential bugs, security weaknesses, duplicated code, and maintainability concerns. This helps teams prioritize fixes that matter most, reduce technical debt, and keep new code quality high as the codebase evolves.
How do you check TypeScript code quality in a CI/CD pipeline?
A common way to check TypeScript code quality in CI/CD is to run automated analysis as part of pull requests and branch builds so issues are surfaced before code is merged. With SonarQube, teams can add analysis to their pipeline to review new code, enforce quality standards, and make code review faster and more consistent.
What is the best way to review new TypeScript code before merge?
The best way to review new TypeScript code before merge is to combine peer review with automated analysis focused on newly added or changed code. This approach helps teams catch bugs, security issues, and maintainability problems early, supports a focus on new code quality, and prevents older issues from slowing down everyday development work.
How does SonarQube for IDE help with TypeScript development?
SonarQube for IDE helps TypeScript developers identify issues directly in their editor while they are writing code, which shortens the feedback loop and makes fixes easier and faster. By surfacing actionable guidance during development, it supports code health from the start and helps teams reduce the number of problems that reach pull requests and production.
Can TypeScript help reduce bugs in large JavaScript applications?
Yes, TypeScript is widely used to reduce bugs in large JavaScript applications because its type system makes assumptions explicit and catches many mistakes before the code runs. This is especially valuable in complex applications where many developers contribute over time and where code quality, maintainability, and safe refactoring are important.
What are the benefits of using TypeScript for enterprise development?
For enterprise development, TypeScript offers stronger maintainability, better collaboration across teams, improved onboarding for large codebases, and more confidence when changing shared logic. These benefits make it easier to scale development practices, improve code quality, and support long-term application health in business-critical systems.
How do you get started analyzing TypeScript with SonarQube?
To get started analyzing TypeScript with SonarQube, teams typically connect their repository, configure analysis in their build or CI pipeline, and review results on pull requests and branches. From there, they can focus on improving new code health first, address the most important issues quickly, and gradually raise overall code quality without disrupting delivery.