How to Use JSON Splitter - Step by Step Guide
Input Your JSON Array
Start by providing your JSON array data. Whether you're splitting large API responses, processing database exports, or dividing large datasets, you have three convenient options:
Choose Split Method
Select how you want to split your JSON array. The splitter supports two flexible methods for dividing arrays:
View Split Results
The tool automatically splits your JSON and displays the results. Each chunk is formatted as valid RFC-compliant JSON:
Step 4: Download or Copy Chunks
Export your split JSON chunks using available options:
Step 5: Process Your Chunks
Use your split JSON chunks for various purposes. Format each chunk for better readability, or minify them before uploading to APIs. You can also validate each chunk separately.
Frequently Asked Questions
What does the JSON Splitter do?
It takes one big JSON array and cuts it into smaller arrays. You choose either how many chunks you want or how many items should go in each one. Every chunk is a valid JSON array on its own, and the items are copied exactly as you wrote them, so long IDs like 8901240544102066246 or prices like 14.50 come out unchanged.
Can I only split JSON arrays or objects too?
Only arrays. A lot of API responses wrap the list in an object, like {"users": [...]}. If you paste one of those, the splitter tells you which property holds the array; copy just that array (from its [ to the matching ]) and paste it in. A plain object with no list inside has nothing to split.
How do I download all chunks at once?
Click "Download All" above the results. You get one ZIP file, json-chunks.zip, with a separate file for each chunk named chunk-1.json, chunk-2.json and so on. The Download button next to it saves only the chunk you are looking at.
What's the difference between split methods?
"Number of chunks" spreads the items as evenly as it can: 100 items into 5 chunks gives 20 each, and 10 items into 4 chunks gives 3, 3, 2 and 2. If you ask for more chunks than there are items, you get one item per chunk rather than empty files. "Items per chunk" puts exactly that many items in every chunk, and the last one gets whatever is left over. Use the first when you know how many files you want, the second when you know the batch size an API or import job accepts.
Is there a limit on JSON array size?
There is no fixed limit, because everything happens in your browser and nothing is uploaded. What your device can handle is the real ceiling: a few thousand records split in about a second, and tens of thousands are usually fine on a laptop. For files in the hundreds of megabytes, a command-line tool such as jq is the better choice.