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Find, highlight, combine, and remove duplicates in Google Sheets.
Listing updated:June 20, 2022
Works with:
The user-proven #1 solution for managing duplicates and uniques across your spreadsheets. More than 3,300,000 installs and thousands of happy users!

Checking for duplicates in hundreds of Google Sheets rows can be a pain in the neck. Luckily, Remove Duplicates is designed to do it for you on the fly so you could spare your time for more meaningful tasks.


Remove Duplicates is easy to use and comes with a wide range of options to handle duplicates in Google Sheets as well as uniques. This is something you just can’t find in other available methods such as Google App Scripts, =UNIQUE, or conditional formatting:

  • No need to use the Script Editor, macros, formulas, or coding
  • Find duplicates in Google Sheets automatically right away, saving your time
  • Compare two columns or sheets even from different files
  • Consider text case if needed


  • Save your search as a scenario for quick use later
  • Schedule scenarios so they run daily at a certain time


The add-on offers the following 5 features performed in just 5 or fewer simple steps — no coding, no formulas required:

  1. Find duplicate or unique rows

This feature is designed to identify duplicate or unique rows in Google Sheets and manage them further (highlight, remove, move to another tab, and even more).

  2. Quick Dedupe

A one-step alternative to the first feature. While offering the same options to process duplicates (remove, highlight, copy, move, label), it immediately deduplicates your entire table.

  3. Find duplicate or unique cells

Find and highlight duplicate or unique cells in just a few clicks. Identical cells will never escape your attention again.

  4. Compare columns or sheets

Easily compare two sheets or columns and quickly find duplicates or uniques in Google Sheets.

 5. Combine duplicate rows

Merge cells from duplicate rows with this tool. Just pick your columns with dupes, set delimiters to your liking, and combine related values from other columns. Or benefit from 14 built-in functions to calculate numbers from duplicate rows instead.

Each of the features empowers you with an array of actions to take on the content:

  • Highlight duplicates or uniques with your favorite color
  • Clear rows/cells
  • Delete rows/cells
  • Copy/move to another spreadsheet
  • Move to another spreadsheet
  • Mark as duplicates/uniques in a new column
  • Merge cells from duplicate rows using delimiters
  • Calculate numbers from dupe rows with 14 functions

EXTRA unique and duplicate scanning OPTIONS:
  • Automation:
     1. Saving your session settings as scenarios for later use
     2. Schedule your scenarios so they run automatically 1-2 times a day
  • Case sensitivity
  • Inclusion/exclusion of blank cells and rows

With Remove Duplicates, you can find and delete duplicate and unique rows and cells for free within the 30-day trial period. 

You can buy the annual subscription for the add-on for just $33.60 or use Remove Duplicates forever for a one-off charge of $59.90. 

All payments are secure and include an unconditional 30-day money-back guarantee. A fully functional 30-day trial period is included.

Feel free to try the add-on out on this test spreadsheet:

If you have any questions about deleting duplicates in Google Sheets, please post them here:
We'll be happy to assist!

Remove Duplicates is a proud member of the Ablebits product family. We build add-ons that help you make the most of Google Workspace. Visit our official website to learn more:
***** V1.14 (20 Jun 2022) *****
★ New features ★
- Remove Duplicate Rows: Schedule autostart. Schedule your scenarios so they run automatically 1-2 times a day. Visit the help page for more information.

- Combine Duplicate Rows: significant performance improvements in processing large amounts of data.
- The limit for total cells in a spreadsheet is expanded to 10 million cells.
- Minor UX and UI improvements.

- Remove Duplicate Rows:
     1. Moved your data around if columns with text were formatted as Date.
     2. Didn't delete entire rows from the sheet if there were merged cells at the intersection of the selected data and the rest of the cells.
     3. The 'Delete entire rows from the sheet' option didn't appear in the scenario outline.
- Compare Sheets: had trouble detecting columns with identical titles.
- Combine Duplicate Rows:
     1. Cleared data from cells if you tried to merge records using a percent sign (%) as a delimiter.
     2. Returned zeros for empty cells in some calculations even if the setting to ignore blanks was turned on.
     3. Blocked the 'Finish' button if you returned to previous steps before making changes on the last one.
    4. Scenarios errored since couldn't create a backup copy when run on the selected sheets.
    5. Couldn't start scenarios if headers contained trailing spaces.
- Didn't see the range you select after clicking 'Cancel' in notification messages.
- Couldn't create scenarios in some rare cases.

***** V1.13 (8 Oct 2021) *****
- Remove Duplicate Rows, Compare Sheets: significant performance improvements in processing large amounts of data.
- Minor UX improvements.

- Remove Duplicate Rows: new scenarios pulled settings from the very first saved scenario.
- Compare Sheets:
    1. Scenarios didn't work if the second spreadsheet recorded in the scenarios was removed from Drive.
    2. Scenarios errored if the sheet had fewer rows than was mentioned in the scenarios. 
    3. When you changed the second sheet in the scenario, it still used the table that was saved in the scenario initially.
    4. New scenarios contained settings from the very first saved scenario.
- Minor UX and UI fixes.

***** V1.12 (5 May 2021) *****
★ New features ★ 
- Scenarios are finally available for Combine Duplicate Rows and Compare Sheets. Make sure to visit the related help pages for more details.
- Compare Sheets. If sheets of interest are in separate spreadsheets, you can add them for comparison from Drive straight from the add-on.
- Remove Duplicate Rows, Compare Sheets, Quick Dedupe. New action with found values is available – delete entire rows from the sheet.

- Auto-select the entire range by clicking the gray rectangle between column and row headers.
- The scenarios menu changed a bit: instead of 2 separate menus to 'Run' and 'View & manage', you will see a list of all saved scenarios under the corresponding menu item. Pick the scenario you need, and you'll be able to start or edit it.
- The width of the status column now expands automatically to fit its contents.
- Minor UX improvements.

- Couldn't process data if the range referred to columns only (e.g. A:D).
- Didn't work if you run the tools from a sheet with its own separate chart.
- Remove Duplicate Cells:
    1.  Fired an error if you selected an entire column as a custom location for the results.
    2. Couldn't insert the result into a custom column.
- Compare Sheets:
    1. Accepted incorrect ranges.
    2. You couldn't change the range after pressing 'Cancel' in the pop-up notifications.
    3. The 'Auto detect' button didn't revert matching columns to their default state after picking them manually.
- Combine Duplicate Rows: worked endlessly if the option to create a backup copy was selected.
- Scenarios:
    1. Didn't work if run on the sheet with blank headers.
    2. Didn't work right after making changes to scenario settings in the 'View & manage scenario' menu.
    3. Didn't work with tables without headers when the range referred to columns only (e.g. A:D).
- Minor UX and UI issues.

***** V1.11 *****
★ New features ★
- Quick Dedupe. This one-step tool will instantly find and eliminate duplicates in your table. It colors and deletes, copies and moves dupes to a new sheet, as well as marks them in a status column.

- UX: auto-select behaviour. Now the add-on highlights only the table where your cursor stands rather than an entire used range.
- UI: images as hints are added. These schemes show how certain settings work. Each option has an "i" button next to its name. Click on it to open a related scheme within the add-on.
- How do you like the new Ablebits logo? ;) Other footer icons have also been updated.

- Combine Duplicate Rows. MODE and STDEV(P) returned the contents of unique cells. COUNT also processed cells without dupes incorrectly.

***** V1.10 *****
★ New features ★
- Combine Duplicate Rows. Now you can also combine rows of data that belong to some duplicate records. Merge cells and separate them with delimiters or calculate values from duplicate rows.

- The limit for total cells in a spreadsheet is expanded to 5 million cells.
- Compatibility with Acer Chromebook 11.
- Minor improvements.

***** V1.9 *****
★ New features ★
 - Scenarios. Just save the settings you use most often and give this set a name – this is your scenario. Once you run it, your sheet will be processed right away, and you won't need to go over the same steps again.

 - Minor improvements and text adjustments.

 - Remove Duplicate Cells: copy and move results to a new location.

***** V1.8 *****
★ New features ★
 - Find duplicate cells. You can find and process duplicate or unique cells within the selected range.

 - Range selector UX. If you had a slow Internet connection or server response, you could get an incorrect range. We've significantly reduced that possibility.
 - UX; the add-on will offer the most possible actions and warn about possible mistakes and lags.
 - Small screens and minor issues UIs.
 - Performance. The new version of the add-on processes colored cells faster.

 - Removing Alternating colors.
 - Corrupting main table formatting.

***** V1.7: We introduced yearly subscriptions, you can still enjoy a fully functional trial version of the add-on for 30 days.

***** V1.6: We fixed the issues you reported and made the add-on much faster!

***** V1.2: Take advantage of all Pro features for free: mark duplicate values in a separate column, copy or move the found rows to another sheet.
Additional information
PricingPaid with a free trial
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Remove Duplicates will ask for the permissions shown below. Learn more
Remove Duplicates will need access to your Google account
This will allow Remove Duplicates to :
See, edit, create, and delete all of your Google Drive files
See, edit, create, and delete all your Google Sheets spreadsheets
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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A User of Remove Duplicates
March 31, 2015
TAKE NOTE: This ONLY scans for duplicate ROWS. My table organization was done in blocks, rendering this add-on useless for me. It does work, though. Would really like to see a feature that scans for duplicate individual cells.
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Josh Johnson
March 18, 2019
Great tool for finding unique/duplicate data out of several data sets. Small thing, but some of the definitions when comparing columns (for example) are confusion and I run it for the column I know are duplicates vs the column where I don't know they are duplicates. So at times have to run it twice to get the output that I need. Aside from that small piece of product feedback, works great every time!
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A User of Remove Duplicates
August 10, 2015
OK, but clunky. Descriptions of selections you want are unclear, plops status column right in the middle of the spreadsheet (although I'm not sure an edge would be better). Would like to see the author polish this app so it's more streamlined and clear.
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Vladimir Frolov
February 21, 2018
They are charging a subscription for a tool that only runs at your own computer, without any ongoing use of this company’s resources whatsoever. Don’t fall for this; there are multiple free alternatives. Edit: The add-on maker’s response to this review ignored the main point that the functionality of the add-on does not use the resources of the maker whatsoever. The add-on, once added to a user’s Google account, only makes use of the user's own resources. There is nothing that justifies an ongoing subscription. Their response (since removed) was misleading and was another piece of evidence to these people who are now managing this add-on’s sales being dishonest extortionists.
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A User of Remove Duplicates
December 28, 2015
It didn't give me a finish button. I got it all set up and there was no finish button or continue or back button on step 4. I use firefox. No Script was set to allow ablebits.
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Katie Bishop
April 30, 2018
I was a bit irked that this is a standard document function that had to be purchased separately (and as a subscription which is kind of bull) but I can tighten the belt and shell out a few bucks. however the fact that it suddenly doesn't work and there is no way to report it or request assistance is pretty frustrating. Just spent an hour doing all restarting and refreshing I can think of since I desperately need this to work in order to proceed with my JOB today and still no go, so looks like I'm going to have to figure something else out.
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A User of Remove Duplicates
April 27, 2018
I would consider donating a buck or few for a life time license, but to ask for a subscription? Have you lost your minds?
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A User of Remove Duplicates
May 16, 2019
Very easy and useful tools. I wish they could give longer free trial.
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A User of Remove Duplicates
October 1, 2014
Works great, except you need to have the individual sheets be in the correct order for the 'Compare Sheets' to work. Just put the first sheet you want to select as the farthest to the left, and the second as the next one, and it works fine. Reverse them, and it seems to show no results... Otherwise it's an elegant solution!
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A User of Remove Duplicates
April 19, 2019
I don't normally write reviews but we're a marketing company and we use this tool all the time. Extremely useful. Saves hours.
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