Developer Tools

JSON Merge Tool

Use the JSON Merge Tool online. No account needed.

Try it

Merged output
{
  "a": 1,
  "c": [
    1,
    2,
    3
  ],
  "b": 2
}

What is JSON Merge Tool?

JSON Merge Tool is a free online utility in the "Developer Tools" category. It helps you work faster with a clean, simple interface.

How to use

  1. Open the tool.
  2. Follow on-screen inputs or paste your content.
  3. Copy or download the result.

FAQs

  • Is JSON Merge Tool free? Yes, free to use in your browser.
  • Do I need to sign up? No signup required.
  • Is my data stored? Inputs are processed in-browser when possible.