TSConfig.json Generator

Create a clean, best-practice tsconfig.json for React, Next.js, Node.js, Vue, Svelte, or libraries with customizable options.

TSConfig.json Generator

Build a clean tsconfig.json with presets and best-practice defaults.

Settings Prefilled examples
Used only for the summary in the result panel.
Quality toggles Recommended
Set this to use path aliases. Common values are . or src.
One mapping per line: alias => target. Example: @components/* => src/components/*.
One type package per line (example: node, jest, vitest).
One pattern per line. Leave empty to use a sensible preset default.
One pattern per line. Leave empty to use a sensible preset default.
Paste a JSON object that will be merged into compilerOptions.
Result Copy-ready
No output yet
Configure settings and click Generate.
Copied

About TSConfig.json Generator

TSConfig.json Generator for TypeScript Projects

A correct tsconfig.json is the difference between a smooth TypeScript workflow and a week of confusing compiler errors. This TSConfig.json Generator creates a clean, modern configuration for common project types, then lets you fine-tune the important compiler options before exporting the final JSON.

How the TSConfig.json Generator Works

Select a preset that matches your stack (Node.js, React, Next.js, Vue, Svelte, or a reusable library). The generator starts from practical defaults for that environment, applies your toggles and dropdown choices, then formats everything as a standards-friendly tsconfig.json you can copy or download.

Step-by-Step

  • 1) Pick a preset: Choose the closest match to your runtime and tooling so the base configuration is sensible.
  • 2) Choose targets and modules: Decide what JavaScript output you need (ECMAScript target) and how modules are emitted or resolved.
  • 3) Toggle ergonomics: Enable strict mode, interoperability flags, JSON imports, source maps, declarations, and other productivity options.
  • 4) Add paths and folders: Provide include/exclude globs and optional path aliases for clean imports.
  • 5) Export: Copy the formatted JSON or download it as a file and drop it into your project root.

Key Features

Preset-based best practices

Instead of starting from an empty file, you get a baseline that reflects real-world expectations: browser-focused JSX settings for React, framework-oriented module resolution for Next.js, or server-friendly defaults for Node.js. This saves time and prevents the subtle mistakes that show up later in CI.

Safe strictness controls

Strict mode is the foundation of reliable TypeScript. The generator makes it easy to turn strictness on, keep it on, and still allow pragmatic choices like skipLibCheck when you want faster builds without weakening your own code’s type safety.

Modern module and target selections

Different runtimes want different module behavior. You can choose CommonJS for older Node projects, ESNext for bundlers, or NodeNext for ESM-first environments. Pair that with an output target (ES2019, ES2020, ES2022, ESNext, and more) to match the browsers or servers you deploy to.

Path aliases and baseUrl helpers

Cleaner imports reduce refactors. Add a baseUrl and optional path aliases (like @/*) and the generator will produce the correct paths mapping. This is especially useful for monorepos and apps with a deep folder structure.

Extra compilerOptions merging

If you already know a few specialized compiler options, you can paste a JSON snippet and the tool will merge it into compilerOptions. That keeps the UI simple while still letting advanced users extend the output without manually editing the file afterward.

Use Cases

  • Bootstrapping a new app: Generate a tsconfig.json that matches your framework and start coding immediately.
  • Cleaning up legacy configs: Replace a messy tsconfig with a tidy baseline, then reintroduce only the options you truly need.
  • Switching to ESM: Explore NodeNext and ESNext module settings to align TypeScript with modern ESM deployments.
  • Publishing a library: Enable declarations and output directories for packages that ship types to consumers.
  • Improving import ergonomics: Add baseUrl and paths so your imports stay readable as your codebase grows.
  • Team standardization: Create a shared configuration that’s consistent across multiple repos or packages.

Whether you are building a front-end app, a backend service, or a reusable package, a consistent tsconfig reduces onboarding time and makes tooling (linters, IDEs, test runners, bundlers) behave predictably.

Optimization Tips

Match module settings to your build pipeline

If you bundle with tools like Vite, webpack, or esbuild, ESNext modules are often the most flexible choice. If you run TypeScript output directly in Node, consider CommonJS for older projects or NodeNext for modern ESM, then keep your package.json and runtime flags consistent.

Use strict mode and tune performance separately

Strictness improves correctness, while options like skipLibCheck and incremental target build speed. Keep strict mode enabled for quality, and use performance flags to make iteration fast without loosening your own type checks.

Keep includes explicit and excludes intentional

Overly broad include patterns can accidentally compile build output or test artifacts. Define include patterns for your source folders, and exclude node_modules, build directories, and temporary output to avoid confusing duplicate definitions and slow builds.

FAQ

Yes. The presets start from sensible defaults for the selected stack, then your choices refine the final compilerOptions. You can also add include/exclude patterns and optional path aliases for a more complete setup.

In most projects, yes. Strict mode surfaces issues early and improves editor tooling. If you are migrating a large codebase, you can enable strict mode and then temporarily relax specific flags later, but keeping strict as a default is usually best.

CommonJS is the classic Node module format, ESNext is ideal for bundlers and modern toolchains, and NodeNext aligns TypeScript’s resolution rules with Node’s ESM behavior. Your runtime and build tools should guide the choice.

Yes. Paste a JSON object with additional compilerOptions in the “Extra compilerOptions JSON” field. The generator merges those keys into compilerOptions so you can extend the output without hand-editing the file.

The tool only outputs JSON in your browser. If you download the file, you decide where to save it and whether to replace an existing tsconfig.json. Always review the output if your repo has unusual constraints.

Why Choose TSConfig.json Generator?

This generator focuses on practical, widely compatible defaults and makes the most important decisions easy: module system, compilation target, strictness, and common interop flags. The result is a tsconfig.json that plays nicely with editors and build tools, while still being straightforward to understand and maintain.

Use it to standardize your team’s baseline, speed up new project setup, and reduce configuration drift between repos. Generate, copy, and commit a clean configuration today so you can spend more time writing TypeScript and less time debugging build settings.