Free · No upload · No account

A spreadsheet compare tool that runs anywhere

Compare two workbooks in your browser, on any operating system, with nothing to install. Drop two files, see every changed cell and formula, and keep your files on your own machine.

Compare files below Looking for Microsoft’s tool?

Compare two spreadsheets right here

No download, no Office edition, no Windows required. Drop two files and read the differences.

Old / Base file

.xlsx .xlsm .xls .xlsb

or click to browse

New / Modified file

.xlsx .xlsm .xls .xlsb

or click to browse

Files never leave your computer. All processing happens locally via WebAssembly.
Runs 100% in your browser. Your files never leave your computer.

Searching for Microsoft “Spreadsheet Compare”?

A lot of people who search for “spreadsheet compare” are really hunting for Microsoft’s desktop app of that name — and then discover it isn’t on their computer. That’s not your mistake. Spreadsheet Compare only ships with specific Windows Office editions and is missing from most of them, including every Mac and the web version of Excel.

You don’t need it to do the job. SheetDelta compares workbooks in the browser on any OS, free. If you came here specifically for a like-for-like replacement — including how it stacks up on formulas, structure, and VBA — read the dedicated comparison:

Microsoft Spreadsheet Compare alternative →

What you get from this tool

Nothing to install

Open the page and compare. No setup, no admin rights, no waiting on IT to approve a download.

Works on any OS

Windows, Mac, Linux, a Chromebook — if it runs a modern browser, it runs the compare. No Windows-only desktop app.

Free, with no account

Compare as many pairs of workbooks as you like for free. You only pay if a team later wants shared review and history.

Rows and sheets aligned

An inserted row or a moved tab won’t throw the whole comparison into false positives the way a strict row-by-row tool does.

Values and formulas

See changed numbers and changed formulas, with the old and new value side by side for every cell that moved.

Files stay on your machine

The comparison runs in your browser with WebAssembly. Workbooks are read locally and never uploaded.

A compare that survives real edits

Comparing spreadsheets is easy until the second file isn’t a tidy copy of the first. Someone inserts a row, sorts a column, or renames a tab, and a basic cell-by-cell comparison reports dozens of differences that are really just the same data shifted down a line.

SheetDelta aligns the sheets and rows before it compares, so those shifts don’t turn into noise. What’s left is the short list you came for: the cells whose values changed, the formulas that were rewritten, the rows that were genuinely added or removed.

Frequently asked questions

Is this Microsoft’s Spreadsheet Compare?
No. Microsoft Spreadsheet Compare is a separate Windows desktop app that only ships with certain Office editions. This is SheetDelta — a free, browser-based compare tool that does the same job without that app. If you specifically need a stand-in for Microsoft’s tool, see our Microsoft Spreadsheet Compare alternative.
I can’t find Spreadsheet Compare on my computer — why?
It’s commonly missing because your Office edition doesn’t include it. It ships with Office Professional Plus and Microsoft 365 Apps for enterprise on Windows, but it’s usually absent from Business Standard/Premium, Home editions, the Mac version, and Excel for the web. Rather than hunt for an install, you can compare right here. The full story is on the alternative page.
Does it work on a Mac or in the browser?
Yes. SheetDelta runs in any modern browser, so you can compare workbooks on a Mac, a Chromebook, or any machine — exactly where Microsoft’s Windows-only tool can’t go.
What spreadsheet formats can I compare?
The free web tool compares .xlsx and .xlsm workbooks. For binary .xlsb, legacy .xls, and chart/pivot comparison, use the desktop app or the hosted platform.
Is it really free, and are my files uploaded?
It’s free with no account, and nothing is uploaded — the whole comparison happens in your browser. There is no server copy of your files because there is no server in the loop.
Can I compare two sheets rather than two whole files?
Yes. You can compare two worksheets inside one workbook as well as two separate files. See compare Excel sheets for that workflow.

Related

Microsoft Spreadsheet Compare alternative →

Same job on Mac, the web, and any Office plan.
Compare Excel files →

Diff two workbooks free, in your browser.
Compare Excel sheets →

Two tabs in one file, or a sheet across two files.

Comparing spreadsheets for a whole team?

Stop emailing screenshots of differences. Give everyone shared version history, review comments, and an audit trail — on top of the files you already keep in SharePoint or OneDrive.

See the platform See pricing