Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Compare JSON files online for free. Find differences between JSON documents. Highlight changes.

Compare two JSON objects and find differences

1

Paste two JSON objects to compare

2

Click "Compare JSON" to analyze differences

3

See color-coded added/removed/modified items

4

Copy difference report for documentation

The tool recursively compares all nested properties and arrays, showing full path for each difference.

Green=added, Red=removed, Yellow=modified, Gray=unchanged (toggle with checkbox).

Yes, but very large files (>1MB) may take longer to process. Consider minifying first.

Arrays are compared as complete values. If any element differs, the entire array is marked as modified.