JSON5 Config Files

Using JSON5 for configuration files in popular tools and frameworks.

TL;DR: Many popular tools support JSON5 or JSON with comments for their config files. This hub page links to specific guides for each tool showing how to add comments and use JSON5 features.

Build Tools

Configuration for build systems, bundlers, and development tools.

tsconfig.json

TypeScript configuration with comments

Babel

babel.config.json5 setup

webpack

JSON5 loader configuration

Vite

Using JSON5 with Vite

ESLint

.eslintrc.json5 configuration

Prettier

Prettier with JSON5 configs

Rollup

Rollup JSON5 plugin

esbuild

Fast builds with JSON5

Frameworks

Configuration for popular JavaScript and web frameworks.

Next.js

Next.js config with comments

Nuxt

Nuxt.js JSON5 setup

React

Create React App & JSON5

Vue.js

Vue CLI JSON5 config

Angular

angular.json with comments

Svelte

SvelteKit JSON5 setup

DevOps & Infrastructure

Configuration for containers, cloud, and serverless deployments.

Docker

App config in containers

Kubernetes

ConfigMaps with JSON5

AWS

Lambda & CDK configs

Serverless

serverless.json5 setup

Most Popular Config Files

These are the most searched JSON5 configuration topics. Start here if you're unsure where to begin.

tsconfig.json

Add comments to TypeScript configuration. TypeScript natively supports JSON with comments.

babel.config.json5

Babel natively supports .json5 config files. Document your presets and plugins.

.eslintrc.json5

ESLint supports JSON5 config files. Comment your linting rules.

JSON5 Support Matrix

Which tools support JSON5 features natively.

Tool Comments Trailing Commas Full JSON5 Config File
TypeScript tsconfig.json
Babel .json5
ESLint .json5
VS Code settings.json
webpack Via loader
Vite Via plugin
npm Strict JSON

Need Help With a Specific Tool?

Start with our most popular guide or explore all configuration options.

tsconfig.json Guide VS Code Setup