Loading…

How to use ES6 to ES5 Converter

Paste modern ES6+ code (arrow functions, let/const, template literals), and the tool converts it into ES5-compatible JavaScript for legacy browsers.

Frequently asked questions

Why convert ES6 to ES5?

ES5 runs on older browsers like IE11. Converting ES6 features to ES5 ensures your code works on legacy browsers that don't support modern syntax.

What ES6 features are converted?

Arrow functions, template literals, const/let to var, destructuring, and spread operators are converted to ES5-compatible equivalents.

Should I use this instead of Babel?

This is a simple converter for small snippets. For production, use Babel or TypeScript which handle more features and edge cases.

More JavaScript Tools

JS to TypeScript
Add TypeScript type annotations to JavaScript functions for better type safety and IDE support
Regex Tester
Real-time regular expression tester with match highlighting, groups, and detailed match information
JS Console Simulator
Simulate JavaScript console.log output for code snippets and preview execution results
CommonJS ⇄ ESM Converter
Convert CommonJS require and module.exports to ES module import/export syntax and back for the common static patterns
JS String Escaper
Escape raw text into a valid JavaScript string literal (\\n, \\t, quotes, control chars) or unescape a literal back to plain text
JS Unicode Escaper
Escape non-ASCII characters to \\uXXXX sequences so source stays ASCII-safe, or decode \\uXXXX, \\u{...} and \\xXX back to text
JS Regex Escaper
Escape a literal string so its special characters are matched literally inside a RegExp, with optional forward-slash escaping
Template Literal → Concat
Convert ES6 template literals with ${expr} interpolation into equivalent string concatenation, string and regex aware
Ternary to If/Else
Expand ternary assignments, declarations and returns into readable if/else blocks, safely skipping ?? and ?. operators
List to JS Array
Turn a list of lines, comma or space separated values into a JavaScript array literal with quoting, trimming and de-duplication
JS Variable Name Validator
Check whether a name is a valid JavaScript identifier and explain each problem — digits, symbols, spaces or reserved keywords
JS Quote Normalizer
Convert JavaScript string quotes between single and double, string, comment and regex aware, re-escaping quotes as needed

← View all JavaScript ToolsBrowse all 1,100+ tools →