tsconfig.json Generator

Developer

Generate a tsconfig.json configuration file for your TypeScript project. Covers compiler options, module resolution, strict mode settings, and path aliases.

Quick Presets

Module & Target

Target

Module

Module Resolution

Strict Mode & Type Checking

strict

Enable all strict type-checking options

noUncheckedIndexedAccess

Add undefined to index signatures

noImplicitReturns

Error on missing returns in functions

noFallthroughCasesInSwitch

Error on fallthrough switch cases

forceConsistentCasingInFileNames

Ensure consistent file name casing

exactOptionalPropertyTypes

Differentiate between optional and undefined

Output & Emit

Output Directory

Root Directory

Declaration Files (.d.ts)

Source Maps

Path Aliases

Enable path aliases

tsconfig.json

{ "compilerOptions": { "target": "ES2022", "module": "ESNext", "moduleResolution": "bundler", "esModuleInterop": true, "resolveJsonModule": true, "isolatedModules": true, "skipLibCheck": true, "strict": true, "noImplicitReturns": true, "noFallthroughCasesInSwitch": true, "forceConsistentCasingInFileNames": true, "outDir": "dist", "sourceMap": true, "baseUrl": ".", "paths": { "@/*": [ "./src/*" ] } }, "include": [ "src/**/*" ], "exclude": [ "node_modules", "dist" ] }

About tsconfig.json

The tsconfig.json file specifies root files and compiler options required to compile a TypeScript project.

Strict Mode - Enable all strict type-checking options for safer code
Module Resolution - Use "bundler" for Vite/webpack, "NodeNext" for Node.js projects
Path Aliases - Map import paths to file system locations
noEmit - Perfect for projects where bundlers handle compilation

What is This Tool?

A tsconfig.json generator creates TypeScript compiler configuration files with optimal settings for your project type. Configure module resolution, target ECMAScript version, strict mode options, path aliases, and output settings for Node.js, React, Vue, and library projects.

tsconfig.json controls TypeScript's behavior: target (output JS version), module (module system), strict (type checking rigor), paths (import aliases), and many more options. Correct configuration significantly impacts developer experience, build performance, and type safety.

Common Use Cases

New TypeScript Projects

Generate optimal tsconfig.json for web apps, Node.js services, React SPAs, and library packages.

Strict Mode Migration

Incrementally enable strict mode options (strictNullChecks, noImplicitAny) when adding TypeScript to existing projects.

Monorepo Setup

Create base and project-specific tsconfig files with extends for TypeScript monorepo architectures.

Library Publishing

Configure declaration file generation, composite projects, and module output for npm package publishing.

Frequently Asked Questions

Should I use strict mode?

Yes for new projects. Strict mode enables all strict type-checking options, catching more bugs at compile time. Enable incrementally for existing projects.

What target should I use?

ES2022 for modern Node.js (18+). ES2020 for broad browser support. ESNext for latest features with a bundler handling downleveling.

What is moduleResolution: bundler?

New in TS 5.0, it matches how bundlers (Vite, webpack, esbuild) resolve modules — supporting package.json exports, .ts extensions, and conditional imports.