CSV & TSV Preview

Drop a .tsv file or paste cells copied from Excel or Google Sheets. The CSV & TSV preview detects tabs in the header row and displays the fields as table columns. Include the header row in your selection so the first record is not used as column names. No spreadsheet installation or account is needed, and the file is parsed on your device.

A comma inside a tab-separated value, such as Lee, Jr., stays in one cell. IDs such as 00142 remain text with their leading zeros. To save tab-separated data as a comma-separated file, use the TSV to CSV converter. For a comparison of the formats, see CSV vs TSV vs JSON.

Opening a CSV in Excel shows Excel's interpretation of it: leading zeros removed, long numbers in scientific notation, some values turned into dates. This preview shows each value exactly as text, split into columns the way standard CSV parsers such as pandas or a database importer would split it. That makes it a quick check before an import: if a column is shifted here, it will be shifted there too.

Quoted fields with commas and line breaks are displayed in a single cell. Rows with too many or too few fields are listed as warnings under the table, with the row they occur in. Tab-separated data is detected from the header row, so a range copied from a spreadsheet can be pasted directly.

Copy screenshot puts a PNG of the table on your clipboard, ready to paste into Slack, an email, or a slide. Download screenshot saves it as table-screenshot.png. The image captures the whole rendered table, including columns scrolled out of view, and is cropped tightly to the table, so small tables do not come with empty margins.

Copying images needs a browser that supports the Clipboard API for images (current Chrome, Edge, and Safari do). If it is not available, use Download instead.

The table renders the first 500 rows so the page stays responsive; the row count shows the full total. For searching, sorting, or filtering larger files, use Data Process. Files over 5 MB show a warning, since parsing happens on your device and very large files can be slow.