Online CSV Viewer – Free CSV File Viewer & CSV Visualizer

Use this free online CSV viewer to open and view CSV files in your browser. Instantly preview and validate CSV data in a scrollable table, like a lightweight CSV file viewer and CSV visualizer. No installation, privacy safe, supports reasonably large files.

Or scroll down to paste CSV text
Need TXT → CSV? Try the TXT to CSV Converter

Drag CSV file here, or Click to select file

Quick guide

  1. Open this online CSV viewer and drag or select a CSV file, or paste CSV text directly.
  2. The CSV viewer parses your data and displays it as a table automatically.
  3. Click a cell to copy its value, or click the row star to mark important rows.

Privacy

All CSV parsing and preview runs locally in your browser. Your files and data are never uploaded to a server or stored.

  1. Open this online CSV viewer and drag or select a CSV file, or paste CSV text directly.
  2. The CSV viewer parses your data and displays it as a table automatically.
  3. Click a cell to copy its value, or click the row star to mark important rows.

Help

FAQ

What file types can I open with this CSV viewer?Show
With this online CSV viewer you can open .csv files or plain text files that use commas, semicolons or tabs as delimiters. The viewer parses them as CSV and displays a table in your browser.
How large can a CSV file be?Show
The viewer can handle reasonably large CSV files, but the limit depends on your browser memory and CPU. If a very large file feels slow, split it into smaller parts before loading.
Is my CSV uploaded or stored anywhere?Show
No. All parsing and preview happens entirely in your browser memory. Files are not uploaded to or stored on any server.
How do I copy a single cell or mark rows?Show
Click any cell to copy its value to the clipboard. Click the star icon in the row header to mark or unmark important rows so you can spot them quickly in the table.
Can I edit or save CSV files with this tool?Show
This online CSV viewer focuses on viewing, validating and copying data. It does not provide in-place editing. For editing CSV files, use a spreadsheet application or a dedicated CSV editor.

Quick Start

  1. Open this online CSV viewer and drag or select a CSV file, or paste CSV text directly.
  2. The CSV viewer parses your data and displays it as a table automatically.
  3. Click a cell to copy its value, or click the row star to mark important rows.

Privacy

Full guide

Features

  • Free online CSV viewer that runs entirely in your browser, keeping your data safe.
  • Virtual scrolling for reasonably large CSV files, providing a smooth viewing experience.
  • Row marking and one-click cell copy, perfect for quick inspection and sharing of CSV data.

Screenshots

CSV viewer empty state

CSV table preview

How to Use

  1. Upload your CSV file to the online CSV viewer: drag and drop it into the upload area or click to select a file from your computer.
  2. Alternatively, paste CSV text into the input area to use the viewer as a quick CSV file viewer in your browser.
  3. Scroll horizontally and vertically to inspect rows and columns, click the star in the row header to mark important rows, and click a cell to copy its value.

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