Easy Tech TutsHow to Find Duplicates in Airtable, Check Records Easily 2026
By Impran M N
Before merging or deleting anything, it's worth simply identifying which records in your Airtable base are duplicates — the Dedupe extension handles the scanning and flagging so you can audit your data accuracy first. This guide covers installing the extension, setting matching fields, and reviewing flagged records without necessarily deleting them yet.
01Open the Extensions directory
Go to the Extensions menu in your base and install the Dedupe checking tool.
02Select your target table
Choose the table you want to audit for duplicate entries.
03Define matching fields
Set the specific fields that determine an exact match, based on what makes a record a true duplicate in your data.
04Run the scan
Let Dedupe scan the table and identify potential duplicate row records.
05Review matches side by side
Use the comparison interface to visually confirm which flagged records genuinely represent identical data points.
06Decide on next steps
Manually check the flagged records before deciding whether to merge, delete, or simply leave them noted for later cleanup.
Frequently asked questions
Does finding duplicates automatically delete them?
No, this process only identifies and flags potential duplicates — you choose separately whether to merge, delete, or leave them as is.
Can I audit duplicates without changing any data?
Yes, running the Dedupe scan and reviewing the comparison interface doesn't modify your records unless you take a merge or delete action.
How accurate is the duplicate detection?
Accuracy depends on the fields you choose to match on — narrow, unique fields like email tend to give more reliable results than broad fields.
Can I run this check periodically to monitor data health?
Yes, running the scan regularly is a good practice for keeping a growing database clean over time.
Watch the full walkthrough
The same steps, demonstrated on screen from start to finish.
