Privacy Policy for Case Changer

Effective date: 19 September 2026 (first published 3 September 2026)

Case Changer is a Google Docs, Google Sheets and Google Slides add-on made by Ikhwan Ariff ("we", "us"). It changes the case of text you select in a document, spreadsheet or presentation, for example to UPPERCASE, lowercase, Title Case or Sentence case.

What the add-on can access

When you install Case Changer, Google asks you to grant these permissions:

• View and manage documents that this application has been installed in (documents.currentonly), View and manage spreadsheets that this application has been installed in (spreadsheets.currentonly) and View and manage presentations that this application has been installed in (presentations.currentonly). These let the add-on read the text you select and write it back in the new case. It cannot open any other file in your Google Drive.
• Display and run third-party web content in prompts and sidebars inside Google applications (script.container.ui). This lets the add-on show its menu and sidebar.

What we collect

Nothing. Case Changer does not collect, store, transmit or share any personal information or document content.

• The text you select is processed inside Google's Apps Script platform and written straight back into your document. It is never sent to us or to any third party.
• We keep no copies of your documents or text.
• We do not use cookies, analytics, advertising or tracking of any kind.
• We do not see your name, email address or Google account details.

How your data is protected

We treat the content of your document as sensitive data, even though we never keep any of it. These are the protection mechanisms in place:

• Processing stays inside Google. Case Changer runs entirely on Google's Apps Script platform, in your own Google account. The selected text is read, converted and written back by code running on Google's servers. It never leaves Google's infrastructure and is never sent to a server run by us or by anyone else.
• No storage and no retention of your content. The add-on has no database, no file storage and no logging of document content. The text exists only in memory for the fraction of a second the conversion takes, then it is discarded. The only thing it remembers is your own settings (whether to keep acronyms, your text language and sidebar language, any custom small words and never-change words you typed, your other Settings choices, the last style you used and a count of how often you use each style, which is what puts your favourites at the top of the sidebar), which Google stores in the add-on's user properties inside your Google account and which we cannot read. These are removed when you uninstall the add-on.
• Encryption in transit. All communication between Google Docs, Sheets or Slides, the sidebar and Apps Script happens over HTTPS (TLS), managed by Google. We add no network calls of our own.
• Least privilege. The add-on asks only for documents.currentonly, spreadsheets.currentonly and presentations.currentonly, which limit it to the file it is open in, and script.container.ui, which lets it draw a menu and a sidebar. It cannot list, open or read any other file in your Google Drive.
• Access control. Only the developer named on this page has access to the add-on's source project, protected by the developer's Google account with 2-step verification. No third party has access to the code or the project.
• No third parties. No analytics, advertising, tracking, crash-reporting or other third-party services are included. Your data is never sold, shared or transferred to anyone.
• Open source. The complete source code is public at https://github.com/workingwithkwan/case-changer, so anyone can confirm that it does what this policy says.
• Revocation. You can remove the add-on's access at any time (see below). Because nothing is stored, revoking access ends all processing immediately and completely.

If you believe there has been a security problem with Case Changer, email support@case-changer.app and we will respond within 7 days.

Google API Services User Data Policy

Case Changer's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Removing the add-on

You can uninstall Case Changer at any time from Extensions > Add-ons > Manage add-ons inside Google Docs, Sheets or Slides, or revoke its access at https://myaccount.google.com/permissions. Because we store nothing, there is no data for us to delete.

Changes to this policy

If this policy changes, the new version will be posted on this page with a new effective date.

Contact

Questions about this policy can be sent to support@case-changer.app.