OntoSecureSheets Secure Your Spreadsheet Data

A Google Workspace Add-on that lets you hide and lock selected columns in Google Sheets to control data visibility and editing. Protect sensitive information with role-based column access.

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The Challenge

Teams sharing Google Sheets face real risks when sensitive columns are exposed to the wrong people

No Column-Level Security

Google Sheets lacks native support for hiding or locking individual columns per user or role

Data Over-Exposure

Collaborators see everything, including salary data, personal info, or financial figures they shouldn't access

Accidental Edits

Without column locking, anyone with edit access can accidentally modify critical data fields

Our Solution

OntoSecureSheets gives you fine-grained column-level control directly inside Google Sheets

Powerful Column Security

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Hide Selected Columns

Choose which columns to hide from specific users, keeping sensitive data invisible to unauthorized collaborators

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Lock Columns from Editing

Prevent accidental or unauthorized changes to critical columns while still allowing viewing access

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Google Account Authorization

Uses Google account email for identification, ensuring only authorized users can manage column visibility and locks

Privacy First

No data leaves Google Sheets. All functionality runs within Google Apps Script with zero external servers

Instant Setup

Install the add-on and start securing columns immediately, no configuration or external accounts required

Team Collaboration

Share sheets confidently knowing each team member only sees and edits what they should

How It Works

Secure your spreadsheet data in three simple steps

Install the Add-on

Add OntoSecureSheets from the Google Workspace Marketplace to your Google Sheets

Select Columns

Choose which columns to hide or lock using the intuitive sidebar interface

Apply Protection

Your selected columns are instantly hidden or locked, securing your data from unauthorized access

Privacy Policy

OntoSecureSheets does not collect, store, or transmit any personal or spreadsheet data.

The add-on only uses the Google account email address provided by Google for authorization and identification. No user data or spreadsheet content is stored on external servers.

All functionality runs within Google Sheets using Google Apps Script.