Synkronizer alternative

When the job is reviewing changes, not merging them

Synkronizer is great at comparing and merging two sheets inside Excel. SheetDelta is built for teams who need to review, approve, and prove changes — across SharePoint or OneDrive, with an audit trail. It doesn’t auto-merge workbooks, on purpose.

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Compare two workbooks right here

See how SheetDelta reads changes. It compares and reviews — it won’t merge your data.

Old / Base file

.xlsx .xlsm .xls .xlsb

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New / Modified file

.xlsx .xlsm .xls .xlsb

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Where Synkronizer is strong, and who should pick it

Synkronizer is a serious tool that does something SheetDelta deliberately doesn’t: it compares two sheets and then merges or updates the data between them, inside Excel. It’s praised for SOX reconciliation and for the hours it saves doing that by hand. If your core job is comparing and merging data inside Excel, it’s purpose-built and an excellent fit. Here’s where it does well:

Comparing and merging in one pass

Synkronizer’s core strength is comparing two sheets and then merging or updating values between them, right inside Excel. If that’s your job, it’s purpose-built for it.

Working inside Excel

It runs as a Windows Excel add-in, so the compare and the fix happen in the workbook you already have open. No exporting, no second app.

SOX-style reconciliation

It’s well-regarded for SOX auditing and for the time it saves reconciling two versions of a sheet by hand.

A perpetual license

Around €99 professional or €199 developer, paid once. The developer edition adds command-line and automation for repeatable runs.

Synkronizer vs SheetDelta

One merges data inside Excel; the other reviews and proves changes across a team. The tools solve different problems.

	Synkronizer	SheetDelta
Compare two files
Merge / update values between sheets		By design, no
Runs inside Excel		Free add-in to view diffs
Runs without Excel installed	—
Works on Mac / Linux	—
Works in the browser	—
VBA / macro diff
Team review & sign-off	—
Exportable audit trail	—
Git / CI integration	CLI (developer ed.)
Pricing model	Perpetual license	Free web + paid tiers

Synkronizer details from its own site, June 2026: Windows Excel add-in, perpetual license, developer edition adds command-line automation. SheetDelta does not merge or write back data between workbooks by design. Details change over time — check the current product pages.

SheetDelta won’t try to out-merge Synkronizer

We want to be clear about this, because it’s the heart of the choice. SheetDelta does not auto-merge workbooks or push values from one sheet into another. We think merging binary Excel files is risky, and a tool that does it silently is a tool that can quietly break a model. So we don’t.

Instead, SheetDelta makes every change visible, reviewable, and signed off, and keeps a record of it. If you need to compare and merge, reach for Synkronizer. If you need to review changes and prove they were checked, that’s the job SheetDelta is built for — and the two can sit side by side.

SheetDelta’s wedge

The review, audit, and team layer that a single-seat in-Excel merge tool isn’t built to provide.

Review and prove, not merge

SheetDelta is for teams who need to see, discuss, and approve a change before it ships, then prove later that it was reviewed. Synkronizer is for changing the data. Different jobs.

No install, cross-platform

Compare in the browser, or on a Windows, Mac, or Linux desktop app, with no Excel required. Synkronizer is a Windows Excel add-in.

A team workflow, not a single seat

The hosted platform watches SharePoint or OneDrive, anchors comments to the exact cell, requires sign-off, and keeps an audit trail. Synkronizer is a single-user, in-Excel tool.

Git and CI when you need it

Free local git diff reads workbooks in your terminal, and a paid GitHub Action puts the same readable diff onto pull requests and into your pipeline. Synkronizer’s developer edition has a command line, but no hosted Git or review trail.

Try a compare right now

Drop two workbooks into the free tool above to see how SheetDelta reads changes. It won’t merge them — that’s the point.

Frequently asked questions

Does SheetDelta merge or update sheets like Synkronizer?

No, and that’s deliberate. SheetDelta reviews changes; it doesn’t auto-merge or write values from one workbook into another. Merging two binary workbooks is exactly the operation that quietly corrupts models, so we don’t do it. If your job is to compare and then merge data inside Excel, Synkronizer is purpose-built for that and a better fit. If your job is to review, approve, and prove changes, that’s SheetDelta.

Does SheetDelta run inside Excel?

There’s a free Excel add-in for viewing diffs and your team’s reviews in-context, but it doesn’t merge or edit data the way Synkronizer does. The full compare also runs in the browser, on the desktop app, and in CI — none of which need Excel installed.

What does SheetDelta cost compared with Synkronizer?

Synkronizer is a perpetual license, roughly €99 professional or €199 developer. SheetDelta is free in the browser, a one-time $149 for the full desktop app, and a subscription only for the hosted team platform. See pricing.

What do I get from SheetDelta that an in-Excel merge tool doesn’t give me?

Cell-anchored review comments, required sign-off before a change is trusted, an approval gate on critical workbooks, and an exportable audit trail — across the whole team, watching the files in SharePoint or OneDrive. A merge tool changes the data; SheetDelta governs the change.

Can SheetDelta still help if we already own Synkronizer?

Yes, they’re complementary. Keep Synkronizer for in-Excel compare-and-merge, and use SheetDelta to review and sign off on changes to the workbooks that matter, with a record you can hand to an auditor. See Excel version control.