TypeScript Tools

Here is a list of the most helpful plugins for working with TypeScript. It also includes popular packages to help you code everything using TypeScript, from command-line applications to native mobile apps.

Visual Studio Code Extensions

Pretty TypeScript Errors

Pretty TypeScript Errors replaces cryptic compiler output with clean, structured messages that highlight the root cause and show actionable hints.

Twoslash Query Comments

Twoslash Query Comments lets you embed // ^? style queries in TypeScript files and preview the compiler’s inferred types inline.

In Your Face

In Your Face displays the Doom Ouch Face as a HUD in your IDE. The more TypeScript errors your code has, the worse your Doom guy will look.

any-xray

any-xray shines a spotlight on every any or unknown in your code by tinting identifiers, adding inline badges, and surfacing a problems list so you can replace unsafe types. It’s a quick way to harden loose areas while migrating codebases or tightening compiler settings.

Peacock

Peacock lets you tint VS Code with a unique color per workspace, making it easy to tell projects apart when you have many windows open. It offers quick picks for popular colors, custom hues, and status bar coloring to keep environments visually distinct without changing your theme.

Coverage Gutters

Coverage Gutters paints coverage right in the gutter using LCOV files, so you can immediately spot untested TypeScript lines without leaving the editor. Run your test suite to generate lcov.info, then use the command palette to load or watch coverage for instant updates while you work.

Dependi

Dependi audits your manifests (package.json, requirements.txt, go.mod, Cargo.toml, composer.json, and more) for outdated dependencies and security issues across JavaScript/TypeScript, Python, Go, Rust, and PHP. It surfaces upgrade suggestions and vulnerability details directly in VS Code so you can patch supply-chain risks without leaving the editor.

npm Dependency Links

npm-dependency-links turns every dependency entry in package.json into a quick jump point. Hover or click to open the npm page, GitHub repo, or homepage for any dependency, so you can check docs and changelogs without manually searching for package names.

Rainbow CSV

Rainbow CSV colors each column in your CSV/TSV files so misaligned commas stand out immediately. It also offers column stats, delimiter detection, and SQL-like queries with IntelliSense, making it easier to inspect data sets without leaving VS Code.

Sort Everything

Sort Everything sorts any selection—lines, CSV columns, JSON, arrays, or key/value pairs—in ascending or descending order with a quick command palette action or shortcut. It keeps indentation and delimiters intact, supports case-insensitive sorting, and offers natural sorting so numbers stay in numerical order instead of lexicographic order.

Vitest Explorer

Vitest Explorer adds a dedicated test tree for Vitest in the VS Code sidebar with start/stop controls, run buttons for individual specs and suites, and live pass/fail counts. It respects your project config, supports workspace trust, and pipes output to the terminal so you can debug failing tests quickly without leaving the editor.

Best Libraries

Here is a list of libraries that enable you to do everything with TypeScript:

Package	Description
cheerio	Flexible, and elegant library for parsing and manipulating HTML and XML.
commander	Complete solution for parsing CLI arguments.
dotenv-defaults	A dotenv system that supports default values.
Inquirer.js	A collection of CLI user interfaces.
jju	Parse and stringify JSON5 with comments and trailing commas.
Luxon	A library for working with dates and times.
pdf-lib	Create and modify PDF documents.
Playwright	Reliable end-to-end testing and navigation for web applications.
sharp	Image processing to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images.
@vercel/ncc	Compile a Node.js module (TypeScript or JavaScript) and its dependencies into a single file.