TableForge

CSV viewer & editor online

Open a CSV to see it as a real grid, then search, sort, fix cells and export, without Excel rewriting your ZIP codes and without uploading anything.

What this viewer does that a spreadsheet doesn’t

  • No silent changes. Excel converts 00742 to 742, 1-2 to 2 January and 16-digit IDs to 1.23E+15 when it opens a CSV. Here every value is kept as text, exactly as it is in the file.
  • Delimiter detection. Comma, semicolon, tab and pipe files open correctly without an import wizard.
  • Quick clean-up. Trim stray spaces, drop empty rows and remove duplicates with one click each.
  • Column stats. See filled, empty and unique counts plus the min and max of numeric columns, which helps catch a bad export.

Need a different format?

Convert the file instead: CSV to Excel, CSV to JSON, CSV to SQL. Curious why some fields are wrapped in quotes? Read how the CSV format works.

Questions people ask

How do I open a CSV file without Excel?

Drop it on this page. TableForge parses it in your browser, detects the delimiter (comma, semicolon, tab or pipe) and shows it as a sortable, searchable grid. Unlike Excel, it never changes values: leading zeros, long IDs and date-like strings stay exactly as they are in the file.

Can I edit the CSV and save it?

Yes. Click a cell to edit it, add or delete rows and columns, trim whitespace or remove duplicate rows, then download it as CSV, TSV, Excel or JSON. The download follows your current filter and sort.

How big a CSV can it open?

Files with hundreds of thousands of rows open fine on a normal laptop, because only 100 rows are drawn at a time. The practical ceiling is your browser’s memory, usually a few hundred megabytes.

Why does my CSV show everything in one column?

The file probably uses a different delimiter than expected (semicolons are common in European exports because the comma is the decimal separator there). Auto-detect usually catches it; if not, pick the delimiter manually.

Is the file uploaded?

No. It is read with the browser File API and never leaves your device.