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Free CSV Viewer & Editor

Open, view, edit, and export CSV files entirely in your browser. No data is uploaded to any server. Supports CSV, TSV, and any delimited text file with auto-detection.

How to Use This Tool

  1. Upload or paste — Drag and drop a CSV file, click to browse, or paste CSV text directly. The tool auto-detects the delimiter (comma, tab, semicolon, pipe).
  2. View and navigate — Browse your data in a paginated table. Click column headers to sort ascending/descending. Use the search bar to filter rows.
  3. Edit inline — Double-click any cell to edit it in place. Press Enter to confirm, Escape to cancel, Tab to move to the next cell.
  4. Export results — Download your data as CSV, TSV, or JSON. Exports include all your edits and respect the current sort order.

Frequently Asked Questions

Can I open Excel files?+
This tool works with plain text CSV, TSV, and delimited files. For Excel (.xlsx) files, save them as CSV from Excel first, then open them here. Alternatively, use our dedicated spreadsheet tools.
Is there a row limit?+
There's no hard limit, but since everything runs in your browser, performance is best with files under 100,000 rows. The table paginates at 50 rows per page for smooth scrolling.
How does delimiter detection work?+
The tool analyzes the first line of your file and counts occurrences of common delimiters (comma, tab, semicolon, pipe). The most frequent one is used as the delimiter. This works correctly for the vast majority of real-world files.

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