Coding and developer tools

Free CSS Selector Generator.

Selector with specificity and stability explanation.

Develop a selector from the actual page structure and check its scope before applying it in a browser task.

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

WHAT TO HAVE READY

Supplied DOM fragment and target element.

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 CSS Selector Generator.

A selector should be specific enough to identify the target and stable enough to survive minor layout changes. Avoid positional selectors when meaningful attributes exist.

Make the workflow fit your task.

Choose a meaningful stable attribute or semantic relationship, then test the selector within the intended scope. Check how many elements match and include a state or container only when needed to identify the right target.

What you provide
Supplied DOM fragment and target element.
What you get
Selector with specificity and stability explanation.

See the input and the result.

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

Example input

DOM contains a button with data-action="export".

Completed example

button[data-action="export"] targets the declared action; check that the attribute is unique within the intended scope.
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.

Should a selector rely on the element's current position in a list?

Prefer stable meaning where available. Positional selectors can point to a different element after a small layout or data change.

Why does the selector match several export buttons?

Narrow the scope to the relevant container or add a supported distinguishing attribute. Verify the match count before using it for an action.

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.

Install WebAct