FAST · PRIVATE · OPEN SOURCE

See what’s inside
your CSV.

Drop in a file and explore your data instantly. Search, sort and scan every row—nothing ever leaves your browser.

Drop your CSV here

or choose one or more compatible files to merge

Up to 20 MB each · Parsed in the background · Processed locally

01Stays privateYour data never leaves this device.

02Works instantlyNo account, upload or waiting around.

03Easy to exploreSearch, sort and export in a click.

EXPLORE DATA WITHOUT THE FUSS

A free online CSV viewer that stays private

CSV Viewer lets you open comma-separated value files directly in your web browser. There is no software to install, no account to create and no file upload to wait for. Your data is read and processed locally on your device.

SEARCH & SORT

Find the rows you need

Search across every column, sort values in either direction and move through large CSV tables with simple pagination.

CUSTOMISE THE VIEW

Focus on useful columns

Hide columns, expand the table to fill your screen or show all matching rows at once without changing the original file.

EXPORT RESULTS

Download filtered data

Export your current filtered result as a new CSV file while keeping every original column available.

How to view a CSV file online

  1. 1Choose a CSV fileDrop a file onto the viewer or select one from your device.
  2. 2Explore your tableSearch, sort, hide columns and adjust the number of visible rows.
  3. 3Export when readyDownload the filtered result or simply close the page.

CSV Viewer questions

Is this CSV viewer free?

Yes. The tool is free to use and does not require an account.

Are CSV files uploaded to a server?

No. Files are processed locally by your browser and never leave your device.

Can I open large CSV files?

The viewer supports CSV files up to 20 MB and includes pagination to keep large tables manageable.