Is my table data uploaded to a server?
No. The tool parses, transforms, previews, and exports data locally in your browser without uploading your input.
Data & Tables
Data Cleaner
Clean table data online. Trim whitespace, normalize casing, remove empty rows, rename columns, and deduplicate locally in your browser.
Tool
Data Cleaner
Clean table data online. Trim whitespace, normalize casing, remove empty rows, rename columns, and deduplicate locally in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this Data Cleaner as a combined browser workflow for messy tables. The tool trims whitespace, normalize casing, remove empty rows or columns, rename columns, split and merge fields, replace text, and detect duplicates with a preview for each step. It is intentionally broader than focused cleanup tools, making it useful when users want several common transformations in one controlled flow.
Examples
- Name , Email , Country , Notes Ada Lovelace , ADA [AT] EXAMPLE.COM , de , paid Ben Ortiz , ben [at] example.com , US , , , , Cy Chen , cy [at] example.com , us , duplicate spacing
Frequently Asked Questions
Are cleanup steps applied automatically?
The tool should preview each selected cleanup step and let users apply changes deliberately instead of modifying data invisibly.
Can I undo a cleanup step?
A useful implementation should keep an operation history during the session so users can revert recent changes before export.
How are data types detected?
Values can be inspected as strings first, then optionally detected as numbers, booleans, dates, or empty values. You can keep text mode when exact formatting matters.
What file sizes are practical in the browser?
Small and medium tables are the best fit. Very large files can use a lot of memory because parsing, previews, and exported results all live inside the browser tab.
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