Online Tool Store
CSV Viewer
Browse a large CSV as a fast, read-only, paginated table with click-to-sort columns and instant search. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — choose your own file to replace it.
How it works
- Choose a CSV file, or drop one onto the page.
- Click any column header to sort by it — click again to reverse.
- Type in the search box to filter rows across every column at once.
- Use Previous/Next to page through large files without slowing down the browser.
FAQ
How large a CSV can this handle?
Files up to 50 MB. Only 50 rows render in the table at a time — sorting and searching run over the full dataset, but the page stays fast because it never renders every row at once.
Can I edit the data here?
No — this tool is read-only by design, so opening a file to check something can't accidentally change it. For editing, use the CSV Editor tool instead.
How does sorting handle numbers vs text?
Click a column header to sort by it — if every visible value in that column is numeric, it sorts numerically; otherwise it sorts alphabetically. Click again to reverse the order.
Is my file uploaded anywhere?
No — the file is read and parsed entirely in your browser. Nothing is sent to a server.
How we compare
| Feature | Online Tool Store | Spreadsheet apps | Online upload-and-view sites |
|---|---|---|---|
| Opens instantly, no import dialog | ✓ | Column-type import wizard | ✓ |
| Read-only — can't accidentally edit the file | ✓ | Editable by default | Varies |
| File stays on your device | ✓ | ✓ | Uploaded to their server |
For a quick look at a CSV someone sent you — without opening a spreadsheet app or risking an accidental edit — this is the fastest path.