JustOpenFile
.json / application/json

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JSON

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What is a .json file?

JSON (JavaScript Object Notation) is a lightweight data-interchange format widely used in APIs and configuration files.

How to open a .json file online

1

Go to JustOpenFile.com

2

Drag and drop your .json file onto the page

3

Or click "Open File" and select your file

4

The file opens instantly in your browser — nothing is uploaded

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Your .json file is processed entirely in your browser. It is never uploaded to any server.

FAQ

Is it free to open .json files online? ▼

Yes, completely free. No account required.

Does my .json file get uploaded? ▼

No. The file is opened locally in your browser using JavaScript.

What browsers are supported? ▼

All modern browsers: Chrome, Firefox, Safari, Edge.