TypeScript tsconfig.json Generator
Free online tsconfig.json generator. Copy or download instantly — runs 100% in your browser.
Loading tool...
What is TypeScript tsconfig.json Generator?
A tsconfig.json generator creates the configuration file that tells the TypeScript compiler how to read and build your project — which JavaScript target to emit, how strict type checking should be, how modules resolve, and which files to include. Instead of copying scattered snippets from docs, you pick a preset, flip switches, and get a clean, valid JSON file instantly.
Key Benefits
- Start from framework-recommended presets instead of a blank file
- Understand each compiler option as a labeled switch, not buried docs
- Generate baseUrl and paths automatically from visual alias rows
- Valid JSON output every time — no trailing commas or typos
- Works offline in your browser; nothing is uploaded
Common Use Cases
- •Bootstrapping a new Next.js, Vite, or Node.js project
- •Tightening an existing config by enabling strict flags one by one
- •Setting up @/* path aliases for cleaner imports
- •Creating a base tsconfig that packages in a monorepo extend
- •Teaching or demonstrating how compiler options change output
How to Use the TypeScript tsconfig.json Generator
- Pick a preset: Choose Next.js, Vite, Node.js, or Library to start from a solid base configuration.
- Tune compiler options: Set target, module, moduleResolution, and JSX, then flip strict and interop flags to match your project.
- Add path aliases: Optionally map aliases like @/* to ./src/* — baseUrl and paths are generated for you.
- Copy or download: Review the live JSON preview, then copy it or download tsconfig.json straight into your project root.
Key Features
- Battle-tested presets for Next.js, Vite, Node.js, and npm libraries
- All important compiler flags: strict family, emit options, and interop switches
- Path alias builder that generates baseUrl and paths automatically
- Live JSON preview updates as you toggle every option
- Copy or download the finished tsconfig.json in one click
- Runs 100% in your browser — no setup, no account, no data leaves your machine
Frequently Asked Questions
Does the generated tsconfig.json replace my existing one?
It is a complete standalone configuration. You can paste it over your current tsconfig.json, or merge in only the compilerOptions you need if your project extends a shared base config.
Which preset should I pick?
Choose Next.js for App Router apps, Vite for SPAs, Node.js for servers and CLI tools, and Library for npm packages that ship type declarations. Every preset follows the current official recommendation for its framework.
Why does the Next.js preset use noEmit and incremental?
Next.js compiles your code itself through SWC, so TypeScript only type-checks (noEmit: true). Incremental builds cache type information so repeat checks stay fast as the project grows.
How do path aliases work?
An alias like @/* mapped to ./src/* lets you import from @/components/Button instead of long relative paths. The generator adds baseUrl and paths for you — bundlers like webpack and Vite can read them, though some toolchains may need an extra resolver plugin.