Excel Compare
Excel files are parsed and compared locally in your browser. Workbook data never leaves your device.
Original Sheet
Changed Sheet
Excel Comparison Result
Spreadsheet differences will appear here after you compare the two files or pasted tables.
About Excel Compare
Excel Compare is a free online Excel Compare tool for checking two spreadsheets, workbook exports, CSV files, or pasted tables side by side. You can use Excel Compare to compare Excel files online when you need a quick spreadsheet diff without desktop add-ins.
This Excel Compare page is built for privacy-first spreadsheet review. Excel files are read in your browser, the Excel Compare result is generated locally, and your workbook data is not uploaded to a remote server during normal use.
Excel Compare helps you inspect row-level changes across reports, QA exports, inventory sheets, pricing lists, and operational data. The online Excel Compare result highlights same, changed, added, and removed rows so spreadsheet changes are easier to review.
How Excel Compare Works
The basic Excel Compare logic reads spreadsheet content locally from XLSX, XLS, CSV, or TSV input. For workbook files, Excel Compare extracts each sheet and converts it into a local text representation so the comparison can stay in the browser.
Each sheet is serialized into rows, and workbook sections are labeled with a `### Sheet:` heading. Excel Compare also trims trailing empty rows and cells so the comparison focuses on meaningful spreadsheet content instead of extra blank regions.
After normalization, Excel Compare performs a line-by-line diff with visible line numbers on both sides. This makes Excel Compare practical for tabular reviews even when the original source came from a multi-sheet workbook.
How to Use Excel Compare
Paste tabular data into both editors, or use Open file on each side to upload complete Excel or CSV files. Excel Compare supports `.xlsx`, `.xls`, `.csv`, and `.tsv` style input for full-file comparison.
The editor header shows the current line count for each side, which helps you confirm how much spreadsheet content was loaded. If needed, use Format Sheet to normalize pasted table content before running Excel Compare.
Click Compare Excel to generate the Excel Compare result, then review the output panes with line counts and highlighted row differences. Use Clear All to reset both spreadsheet inputs and start another Excel Compare session.
FAQ
What does Excel Compare do?
Excel Compare checks two spreadsheet inputs and highlights rows that are the same, changed, added, or removed. It is useful for comparing reports, exported tables, and workbook revisions in an online Excel Compare workflow.
Is this Excel Compare tool free and online?
Yes. This is a free online Excel Compare tool you can use in the browser to compare Excel files online without sign-up or desktop installation.
Does Excel Compare upload my workbook data?
No. Excel Compare processes spreadsheets locally in the browser during normal use. Your workbook data stays on your device, which is important for private reports, internal datasets, and customer-sensitive spreadsheets.
Which file types does Excel Compare support?
Excel Compare supports `.xlsx`, `.xls`, `.csv`, and `.tsv` style input, and it also works with pasted tabular data. That gives you a flexible Excel Compare workflow for both workbook files and plain-text table exports.
How does Excel Compare handle multiple sheets?
When you upload a workbook, Excel Compare reads each sheet locally and adds a `### Sheet:` marker before the sheet content. This helps the Excel Compare result preserve sheet boundaries in a readable line-based view.
Why are line counts shown in Excel Compare?
Line counts show how many serialized rows are currently loaded on each side. That makes Excel Compare easier to verify before comparison and helps you understand the size of the spreadsheet diff output.
Can I compare pasted tables instead of uploading Excel files?
Yes. Excel Compare works with pasted tabular content as well as uploaded files. You can paste spreadsheet-like rows directly into the editors, optionally use Format Sheet, and then run Excel Compare.