Calculator
What the OpenAPI Validator does
OpenAPI Validator: checks Status and Report from OpenAPI JSON. Example: the sample loaded on the page gives status Basic OpenAPI checks passed.
This checker reads OpenAPI JSON and produces Status and Report. There is no submit step; the numbers move as you adjust them.
It is mostly used by anyone cleaning up machine output. Reading raw machine output is painful; a formatted view makes the structure obvious.
Your data stays on your machine. Once the page has loaded you could disconnect entirely and it would still work.
Each field is explained further down, along with the method and a worked example that uses the default values.
What do the OpenAPI Validator fields mean?
The OpenAPI Validator uses 1 input. The starting figures are ordinary, not edge cases, so they make a sensible baseline.
| Field | What to enter | Default |
|---|---|---|
| OpenAPI JSON | paste or type any amount of text | { "openapi": "3.0.3", "info": { "title": "Demo", "version": "1.0.0" }, "paths": {} } |
How does the OpenAPI Validator 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 check.
Bad input produces a message, not a silently incorrect figure.
Worked example
These are the values the OpenAPI Validator loads by default, and the result it produces from them. The defaults produce the result shown here; change any of them and the answer moves.
| OpenAPI JSON | { "openapi": "3.0.3", "info": { "title": "Demo", "ver… |
|---|
| Status | Basic OpenAPI checks passed |
|---|---|
| Report | { "openapi": "3.0.3", "title": "Demo", "paths": 0 } |
Read next: JSON Schema Validation: A Practical Guide
How to use it
- Paste your content into OpenAPI JSON.
- Because there is no round trip to a server, updating on every keystroke costs nothing.
- Check Status and Report on the right.
- If you need a record, Copy Link saves the inputs and Print produces a clean page.
What this tool does not do
- Processing happens in your browser, so very large inputs are bounded by available memory.
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Precision beyond what the inputs justify is not meaningful, however many digits appear.
Frequently asked questions
The form asks for OpenAPI JSON. A starting value is in place for each, so the quickest approach is to replace the one number you actually care about.
With the values loaded when the page opens, status comes out as Basic OpenAPI checks passed. Edit any input and that figure moves with it.
No. Disconnect from the internet and it still works; that is the simplest proof there is no server call.
No cost and no account. Use it as often as you like.
As accurate as the inputs allow. The arithmetic itself introduces no error beyond display rounding.