package.json Diff & Compare
Paste two package.json files to see highlighted line-by-line differences, a change summary, and a similarity percentage. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
two package.json files
Example Output
changed dependencies highlighted
How to Use
- 1Paste the first package.json files (A) in the left box and the second (B) in the right box.
- 2Adjust the options if needed (ignore case, whitespace, or empty lines).
- 3Click Compare (or press Ctrl+Enter).
- 4See the highlighted differences, a summary of how many changes there are, and the similarity percentage. Switch between side-by-side / unified / inline views.
About package.json Diff & Compare
package.json Diff & Compare compares two package.json files structurally to reveal changes in dependencies, scripts, versions, or metadata. You immediately know which packages were added, removed, or version-bumped.
Because it is parsed as JSON, key order does not matter — only real value changes are shown.
FAQ
What is the difference between "diff" and "compare"?
Both are done by the same tool. "Diff" highlights the lines/parts that changed (added/removed), while "compare" shows how similar the two inputs are (similarity percentage + summary). You get both at once here.
Is my data sent to a server?
No. The entire comparison is computed in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.