JSON ↔ JS Object Converter

A free tool to bidirectionally convert between strict JSON (requires double quotes) and JS Object notation (omitted keys). Reduces copy-paste errors across both formats. Works entirely in your browser, ensuring your sensitive data is never sent to any external server.

Use Single Quotes (

Strict JSON

JavaScript Object

Guide & Terminology

What is the JSON ↔ JS Object Converter?

This tool automatically converts JSON syntaxes (which enforce strict double-quoting) into standard, loosely formatted JavaScript Object literals (where keys don't strictly require quotes), and vice versa.

How to Use

Paste your JSON or JavaScript object in either editor.
The opposing editor will automatically attempt to parse and convert the data format.
If the syntax is invalid, an error will be displayed indicating the issue.

Common Use Cases

Taking a raw JSON API response and converting it into a clean JavaScript object for use in your source code.
Taking a messy JavaScript object from code and converting it into strict JSON to feed into other tools or APIs.

Security

Parsing is executed locally. We use a secure JavaScript sandbox environment to parse the strings safely in your browser without transmitting anything over the network.

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