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English
$
USD
I will compare two google sheets tabs and create a clean diff report
Google Sheets and Apps Script Automation Engineer
Software engineer with 19 years of experience — including a decade building trading and market-data clients for securities firms and a fixed-income platform on Tencent QiDian — now focused on Google S...
About this Gig
Manually eyeballing two Google Sheets to find what changed is slow and error-prone and it gets worse as the rows grow.
I'll build you a Google Apps Script that compares two tabs by a key column and produces a clean Diff Report: rows only in Sheet A, rows only in Sheet B, and rows with the same key but a mismatched value. Row order doesn't matter, and your source tabs are never touched.
It runs from a simple custom menu inside your sheet no add-on, no monthly tool. The script is yours to keep.
What you get:
A working Apps Script installed in your sheet
A one-click "Compare" menu that writes a clean Diff Report tab
Clear setup steps + a short screen recording of it running
Great for: reconciling exports, inventory/SKU lists, customer/contact lists, price lists, and finance/operations checks.
Standard adds duplicate-key detection, multi-field mismatch, and a custom menu button. Premium adds scheduled auto-runs and a daily/weekly Gmail summary, so it just runs itself.
Message me your two-sheet structure and I'll tell you within an hour if it fits usually delivered within 1-2 days.
Technology:
Google Sheets
Expertise:
Data manipulation
•
Data validation
My Portfolio
FAQ
Do you keep or see my data?
No. You run the script in your own Google account; I don't need access to your live data. For a test I only need column names or a small sample.
Is this a subscription?
No. It's a one-time script you own. No monthly tool, no recurring fees.
What if my two sheets have different formats or locales?
I handle trimming and common date/number format differences; tell me your setup and I'll match it.
How many rows can it handle?
Comfortably thousands. For very large data I add batching (Standard/Premium).
Do I need to share my whole spreadsheet?
No, just the column structure plus which column is the unique key (e.g. id / SKU / email).
