StreamMask – Privacy Policy

Last updated: 16 September 2026

StreamMask (Hide Personal Info While Streaming) is a Chrome extension. Its only purpose is to keep the personal information of people who stream or share their screen from appearing on web pages and in browser suggestions.

Data we collect

StreamMask does not collect, store, transmit or sell any personal data. The extension has no server, requires no account and uses no analytics or advertising libraries.

Data processed on your device only

• Page content: the text of pages you visit is scanned on your device solely to replace phone numbers, e-mail addresses, ID numbers, bank details and IP addresses with ***** in place. This content is never stored and never sent anywhere.
• Settings: your category choices, custom word list and excluded sites are kept only in the browser's local storage on your device (chrome.storage.local). They are not synced to your Google account. The custom word box rejects anything that looks like a phone, card, IBAN or e-mail; such data is never saved by the extension.
• Browsing history (Stream Mode): when you turn Stream Mode on, your browsing history is backed up to the extension's local storage so it can be restored, and it is removed from Chrome's history. The backup never leaves your device; when you turn Stream Mode off, the history is restored and the backup is deleted.
• Browser settings (Stream Mode): search suggestions and address/card autofill are temporarily switched off while Stream Mode is on and restored to their previous values afterwards.

Permissions

The extension uses content-script access on all sites so masking works everywhere, storage for settings and the temporary backup, and the history and privacy permissions for Stream Mode. These permissions are used only for the purposes described above.

Third parties

No data is shared with any third party.

GDPR / KVKK notice

Data controller: the StreamMask developer (GitHub: KursadEren). Contact: github.com/KursadEren/streammask/issues

Under the EU General Data Protection Regulation (GDPR) and the Turkish Personal Data Protection Law No. 6698 (KVKK), we state that StreamMask does not collect, process, store or transfer personal data. All processing happens locally on your device and nothing is transferred domestically or internationally. Because no personal data is recorded, there are no records on which the rights under GDPR Articles 15–22 or KVKK Article 11 (access, rectification, erasure, objection, etc.) could be exercised; you may nevertheless contact the data controller through the link above and requests are answered within 30 days.

When you uninstall the extension, Chrome removes all local settings and temporary backups from your device.

Changes

If this policy changes, the new version is published on this page.

Contact

Questions: GitHub Issues.