CSV Cleaner & Editor
[CSV]
Upload a CSV file to instantly clean, reorder columns, rename headers, and export. Runs entirely in your browser.
RAM
0.00 MB
Drop CSV file here
Frequently Asked Questions
No. CSV Cleaner runs 100% in your browser using the JavaScript File API and PapaParse. Your CSV data is never sent to any server — it stays on your machine the entire time.
It filters out any rows where every cell is either blank or contains only whitespace. This is useful for cleaning exports from Excel, Google Sheets, or database dumps that often include trailing blank rows.
Double-click the column name in the column pill above the table. It becomes editable inline. Press Enter to confirm or Escape to cancel. The renamed header is reflected immediately in the preview and in the downloaded file.
Drag and drop column pills to reorder them visually. You can also use the ← and → arrow buttons on each pill for keyboard-accessible reordering.
Yes. After loading a file, click "Download JSON" in the footer. The output is a standard JSON array where each object represents a row, with column names as keys.
When enabled, the tool detects columns that contain dates in mm/dd/yy or dd-mm-yyyy formats and converts them to the ISO 8601 standard (YYYY-MM-DD). This is the format accepted by most databases, APIs, and data tools.