neatcsv – Browser-based data cleaning for CSV, Excel, and JSON files

Summary: neatcsv offers 14+ data cleaning tools that operate fully in-browser, enabling users to remove duplicates, validate emails, normalize dates, and format numbers without uploading data. It supports exporting cleaned data as CSV, Excel, or JSON files while maintaining GDPR compliance.

What it does

neatcsv runs entirely in the browser to clean and convert messy CSV, Excel, and JSON files using tools like duplicate removal, email validation, date normalization, and number formatting.

Who it's for

It is designed for users needing quick, script-free cleaning of exported or client-provided data files.

Why it matters

It eliminates the need for custom scripts and server uploads, ensuring data privacy and simplifying data preparation workflows.