Privacy policy

Last updated: 23 July 2026

Doblaj is a Chrome extension that dubs the audio playing in a browser tab into Persian. This policy describes exactly what it does with audio and data. It is short because the extension does very little.

The one thing that matters: to translate speech, that speech must be sent somewhere. While you have dubbing switched on, the audio of the tab you are dubbing is transmitted to Google's Gemini API using the API key you supply. Nothing is sent to the developer of this extension, because there is no server operated by the developer.

Who is responsible

Doblaj is an independent, open-source project. It has no company behind it, no user accounts, and no advertising. Contact details are on the project page.

What the extension handles

Data	Where it goes	How long it is kept
Tab audio — the sound of the tab you dub	Streamed to Google's Gemini API (generativelanguage.googleapis.com) under your own API key. Nowhere else.	Not stored by the extension after the session, except in the in-memory recording described below.
Your Gemini API key	Stored in Chrome's local extension storage on your own device. Sent only to Google, only to authenticate your own requests.	Until you delete it or remove the extension.
Translated text — transcripts returned by the model	Kept in your browser so the extension can show the current line and build subtitle files.	Cleared when the session ends or the browser restarts.
Session recording — original and dubbed audio	Held in your browser's memory only, so you can save it as a file. Never transmitted anywhere.	Discarded when the session ends or you close the browser.
Usage statistics — minutes dubbed, number of API calls, detected languages, sites dubbed	Chrome's local extension storage on your device. Never transmitted.	Until you press Reset statistics or remove the extension.

What the extension does not do

It does not collect, transmit or sell personal information.
It does not use analytics, telemetry, tracking pixels or advertising of any kind.
It does not create an account or require a sign-in.
It does not read, modify or transmit the content of web pages.
It does not capture audio from your microphone, camera, or any tab other than the one you explicitly start it on.
It does not run in the background. Capture begins only when you press the button and ends when you press it again, close the tab, or close the browser.

Google's role

Audio and text you send are processed by Google under your own Gemini API key and Google account. Google's handling of that data is governed by its own terms, not by this policy. Free-tier and paid API keys are treated differently by Google with respect to using data to improve its models, so please read Google's Gemini API terms and decide which key type suits the content you intend to dub. If you dub confidential material, use a paid key and check those terms first.

Permissions and why they exist

tabCapture — to receive the audio of the tab you choose to dub. This is the extension's core function.
offscreen — to run audio processing and playback in a hidden document, which Chrome requires for audio work outside a visible page.
storage — to keep your API key, settings and usage statistics on your device.
downloads — to save the dubbed audio file when you ask for it.
activeTab — to identify the tab you pressed the button on.
Access to generativelanguage.googleapis.com — to reach the Gemini API. This is the only remote host the extension contacts.

Children

Doblaj is not directed at children and does not knowingly handle information from them.

Your control

You can delete your API key and settings at any time in the extension's settings page, reset statistics with one button, and remove all stored data by uninstalling the extension. There is no remote copy to request or erase.

Changes

If this policy changes, the date at the top will change with it, and material changes will be noted in the extension's release notes.