or click to browse
Drag and drop any CSV file onto the page, or click to browse. Your file stays in your browser — nothing is uploaded.
Double-click any cell to edit. Add or delete rows and columns, rename headers, and use find-and-replace across the entire dataset. Undo and redo any change.
Download your edited data as CSV, JSON, Parquet, or Excel. All your changes are included in the export.
Your files never leave your browser. All processing happens locally using WebAssembly — no uploads, no servers, no tracking.
Powered by DuckDB, the same engine used by data teams worldwide. Sort, filter, and search millions of rows in milliseconds.
Handle files with millions of rows. Virtual scrolling keeps the interface smooth regardless of dataset size.
No sign-up, no credit card, no hidden limits. Use these tools as much as you need, completely free.
Need to fix a few values in a CSV before importing? Want to rename columns or delete unnecessary rows? This free CSV editor lets you make quick edits without opening a full spreadsheet application. Data engineers use it to clean up pipeline output. Analysts use it to fix formatting issues. Product managers use it to prepare data for presentations — all without installing anything.
Yes, completely free with no limits. No sign-up or credit card required.
Your data never leaves your browser. All editing happens locally. We never see, store, or transmit your files.
Yes. The editor supports full undo and redo with up to 50 levels of history. Use the toolbar buttons or standard keyboard shortcuts.
Yes. Use the toolbar buttons to add new rows or columns, delete selected rows, rename columns, or remove columns entirely.
Yes. The find-and-replace feature supports plain text and regular expressions, with options for case-sensitive matching. Replace individual matches or all at once.
You can export your edited data as CSV, JSON, Apache Parquet, or Excel (.xlsx).
Click the 'Add Column' button in the toolbar. You'll be prompted to enter a name for the new column, which will be added to the right side of your data.
The editor warns you before closing if you have unsaved changes. To keep your work, export the file before closing the page.
View and explore CSV files instantly in your browser. Sort, filter, search millions of rows. No upload required — your data never leaves your device.
Edit Excel files (.xlsx, .xls) directly in your browser. Add rows, rename columns, find and replace, switch sheets, then export as CSV, JSON, Parquet, or Excel.
Edit Parquet files in your browser. Modify values, delete rows, rename columns, and export to CSV, JSON, Excel, or Parquet.
Convert CSV files to Apache Parquet instantly in your browser. No upload, no Python, no install. Smaller files, faster queries, type-safe columns.