Online CSV Viewer
Choose or drag a CSV file
CSV files up to 20 MB, 100,000 rows, and 500 columns.
CSV support and limits
- File and data limits Reads files up to 20 MB, 100,000 rows, 500 columns, and 5,000,000 cells in total.
- Rows shown on screen The table shows the first 2,000 rows for performance, while search, filtering, copy, and download use the complete result.
- Encoding There is no encoding selector. UTF-8 CSV files are recommended to avoid garbled text.
- Delimiters Comma, tab, semicolon, and pipe delimiters are detected automatically. Mixed or unusual delimiters may not split correctly.
Yes. The CSV Viewer in Yioo Tools is a 100% client-side tool that uses only your computer resources. Uploaded files and the data parsed into the table are not sent to any external server or database, so you can use it safely.
The viewer supports up to 20 MB, 100,000 rows, 500 columns, and 5,000,000 cells in total. The table shows the first 2,000 rows for performance, while search, filtering, copy, and download use the complete result. If a file exceeds a limit, parsing stops before the full dataset is retained in memory and the page explains why.
Yes. The main search box still filters all rows quickly. You can also open the filter and column extract panel to filter by a specific column condition, show only selected columns, and copy or download the current filtered result as CSV.
The viewer has no encoding selector and automatically detects comma, tab, semicolon, and pipe delimiters. If text is garbled or columns split incorrectly, save the source again as UTF-8 with a standard CSV delimiter and reopen it.
Use it when you need to inspect, search, and sort a CSV file without opening a spreadsheet application.