Coding and developer tools

Free Mock Data Generator.

Clearly synthetic records satisfying specified relationships.

Build synthetic fixtures from your schema and keep the purpose of each ordinary or boundary record clear.

Chrome extension + account required.
25 free automation tasks/month across tools. Browser-provider limits apply.

WHAT TO HAVE READY

Schema and test constraints.

YOUR STARTING POINT

A task you can make yours.

Copy it here. Paste it into WebAct when you are ready.

This page prepares your prompt. The task runs in WebAct.

01

Make the task yours.

Review the prompt above. Add your goal and any requirements that matter.

02

Bring it to WebAct.

Open WebAct, paste the task and provide your source material. Start in Chat for a draft or explanation; use Task when you want an approved browser action or file.

03

Check the useful part.

Check formulas, code and calculations against known inputs in the appropriate runtime. Review actions before execution and keep the original data available.

A PRACTICAL GUIDE

How to use the Mock Data Generator.

Synthetic data should satisfy declared relationships and remain clearly fictional. Include boundary cases when the goal is testing rather than demonstration.

Make the workflow fit your task.

Define fields, types and relationships, then generate clearly fictional records satisfying those rules. Include deliberate boundary cases for the testing purpose and distinguish valid fixtures from intentionally invalid inputs.

What you provide
Schema and test constraints.
What you get
Clearly synthetic records satisfying specified relationships.

See the input and the result.

Illustrative input and output · a teaching example, not a live WebAct run

Example input

Generate two fictional orders with unique order_id, valid customer_id and nonnegative amount. Allowed customer IDs: SYN-C1, SYN-C2. Include a zero amount.

Completed example

[
  {"order_id": "SYN-O1", "customer_id": "SYN-C1", "amount": 0},
  {"order_id": "SYN-O2", "customer_id": "SYN-C2", "amount": 24.5}
]

Both customer references belong to the supplied list. All records are synthetic.
Download this example

Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.

Decisions and troubleshooting.

Can random-looking records be assumed to satisfy a schema?

Validate them. IDs, references and required values can still be inconsistent even when each record looks plausible.

Why do tests fail for reasons unrelated to the feature under test?

Check fixture relationships and constraints. Accidental invalid data can obscure the behavior the test was meant to examine.

Try it with your own source.

Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.

Customize and copy the task ↑
BEFORE YOU BEGIN

Using WebAct.

The prompt and example are available here. Run your task in the WebAct Chrome extension.

Is this tool free?

You can copy and edit the prompt here for free. To use it with WebAct, install the Chrome extension, create and verify your account, and connect an available browser ChatGPT session. The Free plan includes 25 user-started automation tasks per calendar month, shared across tools. Ordinary browser Chat is separate; provider limits apply.

Learn about shared context in our privacy policy and choosing Chat or Task.

FROM A PROMPT TO YOUR OWN WORK

Bring the task to your page.

Install WebAct, add your source material and make the result yours.

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