Just Open It

Open CSV files online

Turn a CSV into a readable table instantly.

Drop your .csv file here, or choose one

HEIC, RAR, ZIP, MSG, DOCX, PSD, EPUB and 80+ more

Choose file

Opened on your device — never uploaded

Try a sample:

Supports .csv, .tsv — and 80+ other formats.

About the format

What is a CSV file?

CSV (comma-separated values) is plain text where every line is a row and commas split the columns. It's how most apps export data — but opened in a text editor it's hard to read.

  • View as a table
  • Scroll thousands of rows
  • Handles commas inside quotes
  • Nothing is uploaded — 100% private
  • Free, no sign-up

How to

How to open a CSV file

  1. 1Choose your fileClick “Choose file” above, or drag your .csv file anywhere onto the page.
  2. 2It opens instantlyYour browser reads it locally. Nothing is uploaded anywhere.
  3. 3Scroll thousands of rowsDownload the result, or open another file whenever you like.

Convert

Convert CSV files

Batch convert in your browser — free, and nothing is uploaded.

CSV to Excel converterTurn CSV exports into proper Excel workbooks in one click.CSV to JSON converterTurn a CSV into a JSON array, with the header row as keys.

Frequently asked questions

Everything happens in your browser, so most answers come down to: it's private, free and instant.

Is my file uploaded anywhere?

No. The file is opened by your own browser on your own device. Nothing is sent to a server, so it works for private and work files too.

Is it free?

Yes, completely free. No sign-up, no watermark, no limit on how many files you open.

Open other files

Open Excel filesExcel spreadsheetsOpen JSON filesTree view & formatOpen text & code filesLogs, code, subtitlesOpen HEIC filesiPhone photos → JPGOpen RAR filesExtract without WinRAROpen ZIP filesBrowse & unzip