Create a Random JSON Object
Generate a JSON object with random keys and values. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Create a Random JSON Object
- 1. Set the number of Keys. Enter how many top-level keys the generated object should have. Nothing needs to be pasted in, since this tool builds a fresh object from scratch on demand.
- 2. Set the Max depth. Choose how many levels of nested objects can appear inside the result. A depth of one produces a flat object, while a higher depth builds objects inside objects.
- 3. Pick an indent. Select 2 spaces, 4 spaces or tabs so the generated object's formatting matches whatever file or fixture you plan to paste it into afterward.
- 4. Copy the object. Copy the generated JSON object and paste it into a fixture file, a mock response, or a test case that needs realistic-shaped nested data without real content.
When to use Create a Random JSON Object
Create a Random JSON Object builds a nested JSON object with a chosen number of keys and a controllable nesting depth. Reach for it whenever a test or demo needs object-shaped placeholder data rather than the flat arrays a plain list tool would give you.
- Simulating a nested API response. A JSON viewer or tree component needs test data with several levels of nesting to prove it renders deeply nested structures correctly. Generate an object with a higher Max depth for this.
- Generating a config-shaped fixture. You need a placeholder settings object with several keys, some holding further nested settings, to test a config parser without writing a realistic config by hand.
- Stress-testing a recursive parser. A hand-written JSON parser needs to be checked against deeply nested input to catch stack or recursion issues. Generate an object with a large Max depth and feed it through.
- Seeding a document store. A NoSQL database demo needs several sample documents with nested fields before real application data exists. Generate a few objects and insert them as test documents.
Examples
Generate a two-level object
Output
{
"cedar": 42,
"willow": {
"quartz": true,
"ember": "raven"
},
…
}About the Create a Random JSON Object tool
Create a Random JSON Object is a free online tool that works entirely inside your web browser. Generate a JSON object with random keys and values. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 90 JSON utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 3 settings, including Keys, Max depth and Indent, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Is Create a Random JSON Object free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.