CSV Viewer and Formatter – Preview and Clean CSV Online

ToolsFaction Data Utility

CSV Viewer and Formatter

Preview, inspect and normalize CSV or TSV data before import.

Inspect CSV data in a readable table and normalize delimiters or line endings.

About This Tool

ToolsFaction CSV Viewer and Formatter helps you check messy CSV and TSV files before importing them somewhere else. It can auto-detect the input delimiter, preview up to 100 rows and export normalized data with your preferred delimiter and line ending.

How to Use

  1. Load a CSV or TSV file, or paste the data.
  2. Choose auto detection or specify the input delimiter.
  3. Parse the data and inspect the table preview.
  4. Choose the output format and download a cleaned CSV.

Example

Open a semicolon-delimited export from accounting software, preview the columns, then save it as a standard comma-delimited CSV.

Frequently Asked Questions

Can it open TSV files?

Yes. Tab-delimited data is supported.

Does it auto-detect delimiters?

Yes. Leave the input delimiter on Auto detect for common CSV formats.

How many rows are shown in the preview?

The preview shows the first 100 rows to keep large files responsive, while the full parsed data is kept for export.

Is the file uploaded?

No. Parsing and formatting happen in your browser.

Free to UseNo hidden fees
No Sign-UpStart instantly
Browser-BasedNothing to install
Privacy FriendlyBuilt for simple use
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