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CSV Viewer & Editor — Free Online

View, edit, sort, and export CSV data in a spreadsheet-like table. Supports custom delimiters (comma, tab, semicolon, pipe). Powered by PapaParse — no data leaves your browser.

5 rows × 5 columns

AI developer workflow fit

Use CSV Viewer & Editor — Free Online while building with AI coding assistants, agents, and LLM workflows: validate generated output, transform payloads, debug integrations, and prepare reliable inputs without leaving your browser.

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What is a CSV Viewer & Editor?

A CSV Viewer & Editor is an online tool that parses CSV (Comma-Separated Values) text into a visual table you can browse, sort, edit, and export. CSV is the most widely used format for exchanging tabular data between spreadsheets, databases, and programming languages. This tool uses PapaParse — the fastest in-browser CSV parser — to handle large files, custom delimiters, quoted fields, and edge cases. You can edit cell values directly in the table, sort columns numerically or alphabetically, and export the modified data back to CSV with a single click.

How to Use This Free Online CSV Viewer & Editor

  1. Paste your CSV data into the Input tab text area, or use the pre-loaded sample data.
  2. Select the correct delimiter if your data uses tabs, semicolons, or pipes instead of commas.
  3. Switch to the Table tab to see your data rendered as a sortable, editable table.
  4. Click any column header's sort icon to sort rows ascending or descending by that column.
  5. Click any cell to edit its value directly. Press Enter or click away to confirm.
  6. Click 'Export to Input' to regenerate the CSV text from the current table state, or use the Copy button to copy the CSV to your clipboard.

Common Use Cases for CSV Viewing & Editing

  • Quick-previewing database exports — Paste CSV output from SQL queries, pg_dump, or database admin tools to quickly inspect rows and columns without opening a full spreadsheet application.
  • Cleaning up data before import — Edit cell values, fix typos, and verify data types directly in the table before importing the cleaned CSV into a database or application.
  • Converting between delimiters — Paste a tab-separated file, select the Tab delimiter to parse it, then switch the delimiter to Comma and export — instantly converting TSV to CSV.
  • Sorting data without a spreadsheet — Quickly sort CSV data by any column to find the largest values, earliest dates, or alphabetical ordering without installing Excel or Google Sheets.
  • Sharing formatted data with teammates — Paste raw CSV, edit it in the visual table, and copy the clean result to share in Slack, email, or documentation.

FAQ

What delimiters are supported?
The tool supports four common delimiters: comma (,), tab (\t), semicolon (;), and pipe (
Can I edit cell values?
Yes. In the Table view, click any cell to edit its contents directly. Press Enter or click outside the cell to confirm the change. You can also edit column headers the same way.
How do I export the edited data?
Click the 'Export to Input' button to regenerate the CSV string from the current table state and place it in the Input tab. You can also use the Copy button to copy the CSV directly to your clipboard.
Does sorting modify my original data?
Sorting reorders the rows in the table view. When you export, the CSV will reflect the current sort order. Your original input text is not modified until you click 'Export to Input'.
Is my data sent to a server?
No. All parsing, editing, and exporting happens entirely in your browser using PapaParse. No data is transmitted to any server.
How large a CSV can this tool handle?
PapaParse is highly optimized and can handle files with tens of thousands of rows in the browser. However, rendering very large tables may slow down the page. For extremely large files, consider processing them with command-line tools.

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