DeltaJSON's answer:

With line-based JSON diff tools having limited functionality, many of our customers have asked us for a comparison tool for JSON data. There are a number of free JSON comparison tools available, and it is not too difficult to write a basic JSON comparison yourself, especially if it is focused on just one type of JSON data. However, our aim has been to produce an industrial-strength comparison tool, capable of providing consistent results across many different types of JSON data.

DeltaJSON provides you with a JSON delta file which includes all of the data from both the input files and represents the differences between them. From this delta file, you can produce any combination of the input files you may need, meaning you’re only being bothered with the changes that matter.

DeltaJSON's answer:

DeltaJSON is faster, more accurate and reliable JSON management solution than the majority of tools available online. DeltaJSON not only sets the standard with advanced array alignment controls and word-by-word precision but also excels in handling moving data with both ordered and unordered comparison. It produces a valid JSON result, its highly configurable and can be seamlessly integrated into existing processes and workflows.

DeltaXML has been a market leader in comparison and merge software technologies for over 20 years. Thus, we have always prioritised our customers and provided assistance from our team of experts, up-to-date documentation and on-going support of our products, ensuring that you are well looked after throughout your journey with us.

DeltaJSON's answer:

DeltaJSON is designed for developers and can be readily incorporated into your testing or review processes. Whether you need to verify the output of your own application or submit data files for review, its highly-structured comparisons make it easy to isolate unexpected changes or highlight changes in a browser.

Unlike other tools on the market, DeltaJSON can:
Compare JSON arrays.
Arrays are complicated in structure and the comparison algorithm needs to be able to figure out what data should be compared. Most online tools get the comparison wrong, and the results are unusable.
Can handle data moving.
If key pairs move in an object our comparison understands the data hasn’t changed so you get more accurate results with less false positives.
Offers high-speed accurate compare.
Our compare is very fast, and more importantly accurate, which is even with complex JSON objects.
Able to handle huge JSON objects for big data.
Even with huge ‘big data’ objects or databases DeltaJSON is very fast.
Can handle Ordered and Unordered comparison.
If your data moves around in you object you can configure our ‘unordered’ comparison to stop false positives. When you need to check the order, configure the comparison for ‘ordered’.
No false positives.
Most comparisons do not consider the structure of the JSON object and as a result create false positives that you need to manually review and update. Our solution is accurate so it can be built into automated processes.
Result is a valid JSON object.
This is crucial for automated processing of the result, without which additional programming is required to process the result.
Can be processed inline.
Automated processing allows the result to be used inline with a workflow, perhaps rendering the result with redline markup to a app, or subsequent processing of changed data, or alerting items for analysis.
All data is retained in result object.
You can easily process the output from DeltaJSON as the contents of both document is retained in the result file with the change marked up inline, allowing automated process in your app or workflow.
Can merge JSON objects.
Merging JSON is even more difficult that comparison, but DeltaJSON can do this two and gives configuration options to help control the way the merge works. If you need to merge 2 JSON objects, our result will provide a resolved object for processing. If you need to find the change in 2 edited objects for a shared ancestor use our 3 way merge and configure how the result resolved conflict.
Patch and Graft operations.
If you need to Patch or Graft JSON objects then DeltaJSON can give a great result and offer helpful configuration options.
Expert support
DeltaJSON is produced and supported by DeltaXML a world leader in structure data comparison and merge.

DeltaJSON's answer:

Any organisation which stores or processes large quantities of data in JSON format.