CSV Viewer

## View and Explore CSV Data in Your Browser The CSV Viewer turns raw comma-separated text into an interactive, sortable table. Upload a file or paste CSV directly and it renders the rows instantly, so you can read, sort, and filter the data without opening a heavyweight spreadsheet application. All parsing happens locally in your browser. The file is never sent to a server, which keeps exports containing personal, financial, or otherwise sensitive records on your own machine. ## What You Can Do - Sort any column ascending or descending to find highs, lows, or alphabetical order. - Filter rows to narrow a large dataset down to the records you care about. - Read the data in clean table form instead of a wall of commas and quotes. This is handy for a quick sanity check on a database export, an API response saved as CSV, or a report someone sent you before you commit to importing it anywhere. ## Understanding CSV Quirks CSV looks simple but has edge cases worth knowing: - Fields containing commas, quotes, or line breaks are wrapped in double quotes. - A doubled double-quote inside a quoted field escapes a literal quote character. - The first row is often, but not always, a header. Confirm which convention your file uses. - Delimiters are sometimes semicolons or tabs rather than commas, depending on locale. ### When to Reach for It Use the viewer when you need to eyeball data quickly, verify a column lined up correctly, or filter to a subset before deciding what to do next. For breaking an unwieldy file into smaller pieces, pair it with the [CSV Splitter](/tools/developer/csv-splitter). ## Privacy by Design Because the viewer runs entirely client-side, your data stays in the browser tab. Nothing is uploaded, logged, or retained, so you can safely inspect confidential exports without a transfer leaving your device.