Filter CSV

Find what matters.

Filter rows by condition. Instantly.

Drop a CSV file here or browse

Or paste CSV data
No upload
Works offline
No tracking

Need to filter large datasets? The offline bundle handles unlimited files with no limits. $49 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Drop
Drop a CSV file or paste data. It stays on your device.
02
Filter
Add conditions — contains, equals, greater than, regex, and more.
03
Download
Download the filtered rows as CSV. Nothing was ever uploaded.
// Why this is different

Your data never leaves your machine.

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

fwip works differently. The filter 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.

Can I combine multiple filters?▾
Yes. Add up to 5 filters. All filters use AND logic — a row must match every filter to be included.
Does this support OR conditions?▾
Currently filters use AND logic only. For OR conditions, run separate filter passes and merge the results.
How do numeric comparisons work?▾
Greater than and less than parse values as numbers. Non-numeric values are treated as 0.
Can I use regular expressions?▾
Yes. Choose the "Regex" operator and enter any JavaScript-compatible regex. Case-insensitive by default.
Does filtering modify my original file?▾
No. Your original file is never modified. The filtered result is a new download.
// Related tools

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Convert CSV files to .xlsx spreadsheets.

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