Spreadsheets and data

Free CSV Cleaner.

Consistent delimiters, whitespace and missing-value handling.

Prepare consistent CSV values from supplied data and see exactly which cleanup rules affected each field.

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

WHAT TO HAVE READY

CSV and explicit cleanup rules.

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 the data and rules. Review any proposed calculation or code action before approving it, then check a known example.

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 CSV Cleaner.

CSV cleanup should follow explicit rules for whitespace, blanks and delimiters. Preserve values whose formatting carries meaning, such as leading-zero identifiers.

Make the workflow fit your task.

Confirm encoding, delimiter, quoting and the columns whose formatting must remain textual. Apply explicit cleanup rules to a copy, retaining original row references. Report changed cells and verify that row counts and identifier values survive the conversion.

What you provide
CSV and explicit cleanup rules.
What you get
Consistent delimiters, whitespace and missing-value handling.

See the input and the result.

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

Example input

SKU value is " 0012 "; trim surrounding spaces but preserve leading zeros.

Completed example

Cleaned SKU: 0012 stored as text, not the number 12.
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 leading zeros be removed during CSV cleanup?

Keep them when they belong to identifiers, postal codes or fixed-width values. Numeric conversion should follow the column's declared meaning.

Why does opening the cleaned CSV change long identifiers?

The spreadsheet may infer numbers automatically. Import identifier columns as text and compare the parsed values with the saved file.

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