Predict the gender of names in Google Sheets™. Fill a column with gender and probability for first or full names.
Listing updated:September 28, 2026
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Overview
Genderize.io for Google Sheets™ predicts gender from names, right in your spreadsheet.

Select a column of first names or full names. The add-on fills in the predicted gender and a probability next to each name.

WHAT PEOPLE USE IT FOR
- Gender balance in author and citation lists
- The mix of speakers and panels
- Survey samples and research datasets
- Customer, event, course and membership lists

HOW IT WORKS
1. Open Extensions, then Genderize.io for Google Sheets™, then Predict gender (sidebar).
2. Paste your genderize.io API key. You can get a free key at genderize.io.
3. Pick the names column and click Fill column.
4. Gender and probability appear next to each name. The sidebar also counts the results for the whole list, for example "412 names: 58% female, 39% male, 3% unknown".

Big lists are fine. The add-on sends up to 100 names per request and shows its progress. If a run is cut short, it keeps what it has. Click Fill column again and it carries on with the rows that are still empty.

PREFER FORMULAS?
=GENDERIZE(A2:A500, , $Z$1) fills gender and probability for a whole range, with your API key in Z1.
Count the results like any other column, for example =COUNTIF(B2:B500, "female").

COUNTRY CODES
Some names lean differently from country to country. Add a two-letter country code for sharper results. Set a default country, pick a country column, or pass it to the formula: =GENDERIZE(A2:A500, "US", $Z$1).

PRIVACY
- Works only in the spreadsheet you open it in. It cannot see your other files.
- Sends data only to api.genderize.io. The add-on is locked to that one address.
- Your API key is stored in your own Google account's add-on settings.

ABOUT GENDERIZE.IO
genderize.io predicts gender from names and is used in published research worldwide.

Pricing: https://genderize.io/pricing
Privacy policy: https://genderize.io/legal/workspace-add-on-privacy

Google Sheets™ is a trademark of Google LLC.
Additional information
PricingFree of charge with paid features
Privacy policy
Terms of service
Genderize.io for Google Sheets will ask for the permissions shown below. Learn more
Genderize.io for Google Sheets will need access to your Google account
This will allow Genderize.io for Google Sheets to :
View and manage spreadsheets that this application has been installed in
Connect to an external service
Display and run third-party web content in prompts and sidebars inside Google applications
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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