View CSV instantly
Open a local CSV file, paste data, or try a sample. The table uses sticky headers, row numbers, and smooth scrolling for larger files.
CSV Viewer
Free online CSV opener and reader. No login. No upload.
Free
No login
Local only
Drop CSV here
Upload a file, paste CSV data, or try a sample dataset.
Visible columns
Private CSV viewer online
CSV Viewer Online
A fast CSV viewer, CSV opener, and CSV reader for checking files in your browser. Open, search, inspect columns, and export CSV without sending your data to a server.
Free to use
No login required
Your file stays local
No upload Files are processed in your browser.
No login Start viewing CSVs immediately.
Free Built for quick everyday CSV checks.
Edit and inspect data
Search across the whole file, highlight matches, sort columns, hide fields, and edit cells directly in the table.
Export CSV or Excel
Download the current filtered table as CSV or Excel while keeping your file in the browser from start to finish.
CSV Viewer FAQ
Is my CSV uploaded?
No. Files are read and parsed in your browser. This MVP does not send CSV content to a server.
Can I edit CSV data?
Yes. After loading a file, click a table cell to edit it. Press Enter to save the cell or Esc to cancel the current edit.
Can I open large CSV files?
The viewer renders visible rows only, so scrolling stays responsive for larger files. Extremely large files still depend on your browser memory.
Can I export CSV to Excel?
Yes. Use Export Excel to download the current visible and filtered table as an Excel-compatible .xls file.
Does it handle different encodings?
The viewer tries UTF-8 first and falls back to common legacy encodings such as GB18030 when the browser supports them.
How can I report a bug or request a feature?
Email hello@csvviewer.org with what you were trying to do, your browser, file size if relevant, and a safe sample CSV if you can share one.