SORT KEYS
Add at least one key to sort by. Use dot notation for nested keys (e.g. user.name).
Ready to sort
Add sort keys and click Sort Array// sort json arrays by one or more keys instantly
Sort JSON arrays of objects by one or more keys in ascending or descending order. Multi-key sort, nested key support, browser-based, free, no sign-up required.
Add at least one key to sort by. Use dot notation for nested keys (e.g. user.name).
Ready to sort
Add sort keys and click Sort ArrayInput must be an array of objects (e.g. [{"name":"Alice","age":25},...]).
Click "+ Add Key", type the field name, choose direction. Stack multiple keys for multi-level sorting.
Copy or download the sorted result. Drag keys to reorder sort priority.
The JSON Array Sorter lets you sort any JSON array of objects by one or more keys — ascending or descending — with full support for nested key paths via dot notation. No server upload, no sign-up: all processing runs in your browser.
Yes. Click "+ Add Key" multiple times to add as many sort keys as you need. The first key has highest priority. When two items are equal on the first key, the second key is used as a tiebreaker, and so on.
Yes. Use dot notation to target nested properties. For example, address.city will sort by the city field inside each object's address property.
The tool uses "auto" type detection by default: if both values being compared are numeric, numeric comparison is used. Otherwise, string comparison (case-insensitive) is applied. You can also force a type per key.
No. All sorting is performed entirely in your browser using JavaScript. No data is transmitted to any external server, making this tool safe for sensitive or proprietary JSON data.
Objects missing the sort key will have a null value for that key. Numerically, null is treated as 0; as a string, it sorts as an empty string — so missing-key items will typically sort to the top in ascending order.
This tool is optimized for arrays of objects. For primitive arrays like ["banana","apple","cherry"], use a key of . or simply use the browser console — a dedicated primitive sort may be added in a future version.
Working with APIs and data feeds means constantly dealing with JSON arrays that arrive in unpredictable order. Whether you're preparing data for a frontend table, normalizing test fixtures, or cleaning up a config file, having a quick way to sort JSON arrays by one or more object keys saves real time. The JSON Array Sorter tool does exactly that — paste your array, define your sort keys, and get a properly ordered result in seconds, entirely in your browser.
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A JSON array sorter is a tool that takes a JSON array where each element is an object, and reorders those elements according to the values of one or more specified fields. Think of it like applying an ORDER BY clause in SQL, but for your in-memory JSON data.
For example, given an array of user objects each containing name, age, and score fields, you might want to sort by score descending first, then by name ascending as a tiebreaker. This tool handles that in one pass.
Single-key sorting is straightforward: pick a field, pick a direction. Multi-key sorting is more powerful. The first key in your list is the primary sort criterion. If two items have identical values for the first key, the sorter falls through to the second key, and so on. This is sometimes called a "compound sort" or "composite sort", and it's the standard behaviour of Array.prototype.sort when implemented correctly with a multi-field comparator.
In practice, multi-key sorting is essential for things like:
Modern API responses are rarely flat. You often deal with objects nested two or three levels deep. This tool supports dot-notation key paths so you can sort by author.name, location.city, or meta.created_at just as easily as top-level keys. The parser walks each segment of the path and gracefully returns null if any intermediate key is missing, so partially-structured data won't cause errors.
Each sort key has its own direction setting — you're not locked into a single direction for the whole operation. It's perfectly valid to sort by date descending (newest first) and then by title ascending (A–Z within the same date) at the same time. The per-key direction control gives you full flexibility.
JSON values can be strings, numbers, booleans, or null. When comparing two values, the sorter uses "auto" detection by default: if both values parse as finite numbers, numeric comparison (<=> spaceship operator) is used; otherwise, case-insensitive string comparison via strcmp is applied. This means a field like age containing numeric strings like "25" and "30" will still sort numerically, not lexicographically (which would put "30" before "9").
All sorting in this tool is performed client-side. Your JSON data never leaves your machine. This makes the tool appropriate even for internal data, development secrets in test fixtures, or any JSON you'd rather not pass through a third-party server. The page has no analytics on the JSON content, no logging of inputs, and no network requests triggered by the sort operation.
The JSON Key Sorter reorders the keys inside each object alphabetically — it's about consistent key ordering for diffs and readability. The JSON Array Sorter reorders the objects themselves within the array — it's about data order, not key order. Both are useful at different stages of working with JSON.
A typical workflow looks like this: you fetch JSON from an API endpoint during development, paste it here to sort by the field your UI expects, verify the order is correct, then copy the sorted JSON into your fixture file or mock response. This is faster than writing a temporary sort script and avoids committing unsorted test data that makes diffs harder to read.
Real-world JSON arrays often have inconsistencies. Some objects may be missing the sort key entirely; others may have null as the value. The tool handles both gracefully: missing keys and null values are normalized to a consistent baseline (0 for numeric comparison, empty string for string comparison), so they sort stably without throwing an error. Objects with missing keys will typically appear at the top of an ascending sort and at the bottom of a descending sort.
After sorting, you can either copy the result to your clipboard with the Copy All button or download it as a .json file using the Download button. The filename defaults to sorted.json. The output is always pretty-printed with your chosen indentation (2 spaces, 4 spaces, or minified) so it's immediately usable in any codebase.