Compare and Merge JSON

About This Spell

With a wizard's whisper, Compute a semantic diff between two JSON documents, with optional list-order normalization. Optionally produce a deep-merged result.

How to Cast the Spell:

Use your magic to Paste JSON A and JSON B.
Use your magic to Choose options and compare.
Use your magic to Copy the diff and merged output.

What is JSON Diff Merge?

JSON Diff Merge is a free developer assistant from WizardOfAZ. Use it to merge developer payloads into a single download as part of your debugging and prototyping, without installing extra software.

Because everything happens locally in your browser, your code and credentials stay under your control while you merge developer payloads into a single download.

Popular ways to use JSON Diff Merge

Streamline debugging and prototyping by using JSON Diff Merge to merge developer payloads into a single download.
Share deliverables faster—processed developer payloads are ready for download in seconds.
Combine JSON Diff Merge with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to merge developer payloads into a single download, and download the processed result instantly.
Bookmark the JSON Diff Merge in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to merge developer payloads into a single download.

Frequently asked questions

Is the JSON Diff Merge secure?

Yes. The JSON Diff Merge runs entirely in your browser, which means your code and credentials never leave your device.

What can I do with the JSON Diff Merge?

You can debugging and prototyping by processing developer payloads without uploading them to an external service.

Can I use JSON Diff Merge on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement JSON Diff Merge:

Base64 Tool — Use it to work with developer payloads using flexible options.
Batch Minifier — Use it to work with developer payloads using flexible options.
CSS Minifier — Use it to work with CSS snippets using flexible options.