100% local and secure
Your data stays on your device and is never sent to our servers.
Import an Excel or CSV file, choose cleanup operations, preview the result and export it without uploading your data to a server.
Your files are processed locally in your browser and are never sent to our servers.
Drop your file here
Recommended size: up to 30 MB
Clean an Excel or CSV file by removing duplicates, empty rows and extra spaces without uploading it to a server.
Your data stays on your device and is never sent to our servers.
Clean, structure, and transform your data with rules tailored to the format being processed.
CSV, XLSX, and other tabular formats depending on each tool’s capabilities.
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Guide
Drop a supported file and review the preview.
Enable the cleaning rules needed for your data.
Download the cleaned table in an available format.
No. Processing is performed locally in the browser.
No. Processing happens locally in your browser.
Yes. The tool is free and requires no account.
Put cleaning, validation, filtering, merging, comparison and conversion in a sensible order, and learn when a reusable pipeline is better than isolated tools.
Learn how tabular data is structured, how CSV, Excel, JSON and TSV differ, and how to choose the right format before cleaning, converting or automating a workflow.
Learn a practical order for removing empty rows, trimming values, standardizing headers, checking identifiers and validating a CSV or Excel dataset.
Understand delimiters, encodings, types, nested JSON and spreadsheet features before converting data between CSV, Excel, JSON and TSV.
Recommended workflow
Discover tools that naturally fit before, after, or alongside this one.
Compare two Excel or CSV files using a key column and spot the differences.
Merge multiple Excel or CSV files into one table with automatic column alignment.
Convert Excel, CSV, and other spreadsheet formats directly in your browser.
Compare two Excel or CSV files using a key column and spot the differences.
Convert Excel, CSV, and other spreadsheet formats directly in your browser.