Calculator
What the Fake JSON Generator does
Fake JSON Generator: generates Status and Fake JSON from How many records? and Indent. Example: how many records? 3 and indent 2 spaces gives status Generated 3 records.
Status and Fake JSON, derived from How many records? and Indent. Edit a field and the answer updates in place.
Typical users are developers debugging a payload. Spotting a malformed field is far quicker when the structure is laid out clearly.
This runs client-side, which means we never receive what you enter and could not retrieve it if asked.
If you want to check the arithmetic, the field table, the method and a worked example are further down.
What do the Fake JSON Generator fields mean?
The Fake JSON Generator uses 2 inputs. You can work from the defaults, or clear them and start fresh, both work.
| Field | What to enter | Default |
|---|---|---|
| How many records? | accepts 1 to 50 | 3 |
| Indent | choose from 2 spaces, 4 spaces, 1 tab or Minified (no indent) | 2 spaces |
How does the Fake JSON Generator work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same generated output.
Nothing is computed until the inputs pass their checks, so you will not get a confident answer built on a typo.
Worked example
These are the values the Fake JSON Generator loads by default, and the result it produces from them. Here is the calculation as it stands the moment the page loads.
| How many records? | 3 |
|---|---|
| Indent | 2 spaces |
| Status | Generated 3 records |
|---|---|
| Fake JSON | [ { "id": 1, "name": "Ada 1", "email": "ada1@example.com", "active": true, "score": 99 }… |
How to use it
- Fill in How many records? (1 to 50).
- Pick a value for Indent: the options are 2 spaces, 4 spaces, 1 tab or Minified (no indent).
- Type a value and the answer is already there by the time you stop.
- The panel reports Status and Fake JSON.
- Copy Link is the quickest way to send the exact scenario to someone else.
What this tool does not do
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Processing happens in your browser, so very large inputs are bounded by available memory.
- It does not account for anything you did not enter, by definition.
- The tool cannot tell whether a number was entered in the unit you intended, so double-check the labels.
Frequently asked questions
Just How many records? and Indent. Nothing starts empty, letting you treat it as a what-if tool rather than a data-entry form.
How many records? accepts 1 to 50. If a value falls outside, the tool says which field is at fault instead of guessing.
With the values loaded when the page opens, status comes out as Generated 3 records. Any edit re-runs the calculation, so there is no stale number on screen.
Not at all: the whole thing runs offline once the page has loaded, which tells you nothing is being sent.
Nothing at all. There is no registration, no paywall and no per-use quota.
The output is deterministic. The same inputs always give the same answer, and the method is documented above so you can check it.