CSV Viewer — Open & Sort CSV Files Online, Free
Open a .csv file as a searchable, sortable table — no spreadsheet app needed, and the data never leaves your browser.
1. Choose or drop a file
2. View instantly
3. Download when done
What this viewer does
- Click any column header to sort
- Live search/filter across all rows
- Handles quoted fields, commas, and TSV delimiters
- Row and column count summary
- Export back to CSV or copy as JSON
How it's rendered
Custom parser. A local, quote-aware CSV/TSV parser builds the table entirely in-browser.
Nothing about this file is ever sent to a server — open your browser's DevTools Network tab while using this viewer and you'll see no request carrying your file's contents.
100% Private
Files never leave your device. There is no server that ever receives your file's contents.
No Uploads
Every format is decoded and rendered locally via WebAssembly or JavaScript. Open your browser's Network tab and confirm nothing is sent.
No Storage
Nothing is written to a server or database. Memory clears the moment you close or reload the tab.
GDPR-friendly by design
There's no file data collection to comply with in the first place — no account, no tracking of file contents, no analytics on what you view.
CSV viewer — FAQ
Does it handle large CSV files?
Yes, files with tens of thousands of rows render smoothly; extremely large files are bounded by device memory.
Can I sort by a column?
Yes, click any column header to sort ascending/descending.
Does it support TSV or semicolon-delimited files?
Yes, the delimiter is auto-detected from the file.
Is my data uploaded?
No, parsing and rendering happen entirely on your device.
Can I search within the data?
Yes, the search box filters rows live across all columns.