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ESLint Config Generator - Free Online Dev Tool | IconVault

Build a modern ESLint flat config visually: pick rule severities, add ignore patterns, export ready code. Free, in your browser.

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ESLint Config Generator

Build modern ESLint flat configs visually

5 of 5 free uses left
Language preset:

Rules - pick a severity for each

no-unused-vars

Disallow unused variables and function arguments

no-console

Disallow console.log in shipped code

no-debugger

Disallow debugger statements

eqeqeq

Require === and !==

prefer-const

Prefer const for never-reassigned bindings

no-var

Disallow var, use let or const

curly

Require braces around every block

no-eval

Disallow eval()

no-alert

Disallow alert(), confirm() and prompt()

no-throw-literal

Only throw Error objects, never literals

semi

Require (or ban) semicolons

quotes

Enforce a quote style

@typescript-eslint/no-explicit-any

Ban the any type

@typescript-eslint/no-non-null-assertion

Ban the ! non-null assertion

Ignore patterns (one per line)

eslint.config.js - live preview

// Generated with IconVault's ESLint Config Builder
// Install: npm i -D eslint @eslint/js typescript-eslint

import js from "@eslint/js";
import tseslint from "typescript-eslint";

export default [
  {
    ignores: [
      "node_modules/",
      "dist/",
      ".next/",
    ],
  },
  js.configs.recommended,
  ...tseslint.configs.recommended,
  {
    rules: {
      "no-unused-vars": "error",
      "no-console": "warn",
      "no-debugger": "error",
      "eqeqeq": "warn",
      "prefer-const": "warn",
      "no-var": "error",
      "no-eval": "error",
      "no-alert": "warn",
      "no-throw-literal": "error",
      "@typescript-eslint/no-explicit-any": "warn",
      "@typescript-eslint/no-non-null-assertion": "warn",
    },
  },
];

5 of 5 free copies left.

This is the modern flat config format (ESLint 9+). The install command at the top of the file lists every package your preset needs.

About this tool

IconVault's ESLint Config Generator builds a modern ESLint flat config (eslint.config.js) through a visual interface instead of docs archaeology. Browse the rule list, set each rule to off, warn or error, add ignore patterns one per line, and copy the generated config straight into your project. It is free and runs fully in your browser.

Flat config replaced .eslintrc in ESLint 9, and writing it by hand means juggling arrays of config objects. This tool generates clean, commented, ready-to-run code you can paste into any JavaScript or TypeScript project.

Frequently asked questions

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