CSV Viewer

See your data.

Search, sort, explore. On-device.

Drop a CSV or TSV file here

or

No upload
Works offline
No tracking

Need to process CSV files offline? The offline bundle handles unlimited files with no limits. $49 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Drop
Drop your CSV or TSV file. It stays on your device.
02
Explore
Search, sort, and filter your data in an interactive table.
03
Export
Export filtered rows as CSV. Nothing was ever uploaded.
// Why this is different

Your data never leaves your machine.

Most online CSV viewers upload your file to a server. Your data passes through systems you don't control.

fwip works differently. The viewing engine runs entirely in your browser. Your data is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

// Questions

Frequently asked.

How large a CSV can this handle?▾
fwip handles files with tens of thousands of rows. The pagination system renders 100 rows at a time to keep the UI responsive even with very large datasets.
Can I sort by multiple columns?▾
Currently you can sort by one column at a time. Click any column header to toggle between ascending and descending sort.
Does this modify my original file?▾
No. fwip only reads your file for display. Your original CSV is never modified. The export function creates a new file from the filtered/sorted view.
Does it support TSV files?▾
Yes. fwip auto-detects tab-separated files and handles them the same way as comma-separated CSV files.
Can I search across all columns?▾
Yes. The search bar filters rows by checking all columns. Any row containing your search term in any column will be shown.
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