Compare Two CSV files & find Diff Online

Compare and find diff in two CSV files easily for free. Copy/paste data or upload files and then click on Compare button to get diff.

Choose Original File

Choose Modified File

CSV Input Options

Delimiter

Header Row

Dynamic Values

Skip Empty Lines

Give Rating

How to compare two excel files for differences?

Using this web tool, you can compare any Excel / Calc document easily. Just select first/original file in left window and second/modified file in right window. Your data will automatically be extracted. First sheet is automatically selected and you can change it in the dropdown.

Alternatively you can also copy and paste directly into left and right windows.

After that click on Compare button to find diff. All differences will be shown with removals/additions & changed values highlighted in red/green & blue color.

You can export the diff .xlsx, .csv, .ods, or .html file format.(If you face problem in Excel export, use OpenDocument export(unstyled).)

Otherwise you can also select all (Ctrl-A) and copy (Ctrl-C) and then paste in your spreadsheet software (Ctrl-V).

How to Compare two excel sheets in same file?

To diff two sheets, you can upload same file for both original/modified section and choose sheet accordingly from the dropdown.

What does +++/---/-->/@@/: indicate 🤔?

+++ This row has been added in second/modified file.
--- This row has been removed in second/modified file.
--> Cell value different.
: Moved/Reordered row.
@@ Header row.
... Unchanged rows/cols have been omitted in between.

Image of Excel diff online example

What spreadsheet file formats does this Excel diff tool support?

This tool can read following worksheet/workbook formats:

Excel 2007+ (XLS/XLSX/XLSM/XLSB)
Delimiter-Separated Values Text files (CSV/TXT) (Use CSV Compare tool if CSV parsing fails)
Data Interchange Format (DIF)
OpenDocument Spreadsheet (ODS/FODS)
HTML Tables

Does this compare against formulas?

No, this tool only does value based comparisons. Two files are compared per row/column wise. So, to get better results your sheets should be organized (sorted/ similar column layout).

What about my data?

This is a web based tool. All data extraction/comparison/export is done in your 🖥 browser itself. Nothing is uploaded to our server if you are only comparing.

However, if you want to share results with others, you must choose to save the result which then will be uploaded to our server.

You'll be given a unique URL for your result & your result will be viewable to anyone with that unique URL.