What does this tool do?
JSON Sort Keys orders every key in a JSON object alphabetically, ascending or descending, and reformats it with the indentation you choose. Because keys in all nested objects follow the same rule, the output is always consistent and easy to compare. Everything runs in your browser, so your JSON is never sent anywhere.
How to use it
- Enter your configuration details.
- Review the generated output.
- Copy the ready-to-use code or file.
How it works
The tool parses the JSON, sorts the keys at every object level in the chosen direction, and recursively processes objects inside arrays as well. It then re-serializes with the indent you pick, such as 2 spaces, 4 spaces or a tab. The element order of arrays is preserved; only object keys are rearranged.
Real-world use cases
It is ideal for reducing meaningless diff noise in JSON files under Git, since a consistent key order makes real changes stand out. It also makes it easy to bring configuration files, translation dictionaries or API responses into a standard layout so a team can agree on a single format.
Frequently asked questions
Does the order of array elements change too?
No, only object keys are sorted. The element order of arrays is preserved as-is, because order is often meaningful in arrays.
Are nested objects sorted as well?
Yes, sorting is applied recursively to every depth, so even the keys of the deepest nested objects are arranged in your chosen direction.
Is JSON Sort Keys free?
Yes. JSON Sort Keys and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. JSON Sort Keys works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.