Privacy Policy — Voice Translator

Last updated: 2026-05-28

This Privacy Policy explains what data Voice Translator (the “Extension”) processes, where it goes, and what we do not collect.

Summary

The Extension runs entirely in your browser. We do not operate any servers.
The only third party that receives data is OpenAI, and only when you click Start.
Your OpenAI API key is stored locally in your browser and is sent only to OpenAI for authentication.
User data is used only to provide live voice translation and optional subtitles.
We do not collect analytics, usage telemetry, error reports, or any other data about you.

What the Extension does

When you click Start translating:

The Extension uses the Chrome tabCapture API to capture the audio of the currently active browser tab.
It opens a direct WebRTC connection from your browser to OpenAI’s Realtime API (api.openai.com).
The captured audio is streamed to OpenAI, which returns translated audio and a text transcript.
The translated audio is played back through your speakers; the transcript is shown as an on-page subtitle overlay if you have subtitles enabled.

When you click Stop, or when audio activity in the tab ceases for 45 seconds, or when the tab is closed, the capture and the connection to OpenAI are terminated.

Data we process

Item	Where it goes	Where it is stored
Tab audio	Streamed directly to OpenAI for translation	Not stored by the Extension
OpenAI API key	Sent to OpenAI for authentication	Stored locally via `chrome.storage.local`
Translated audio	Played to your speakers	Not stored
Translated transcript	Shown as on-page subtitle	Not stored after the session
Target language	—	Stored locally via `chrome.storage.local`
Subtitle on/off, subtitle position	—	Stored locally via `chrome.storage.local`

chrome.storage.local is encrypted at rest on macOS and Windows by Chrome’s own storage layer. Storage is per-browser-profile and is removed when you uninstall the Extension.

What we do NOT do

We do not run any backend servers.
We do not transmit your API key, audio, transcripts, or any other data to any party other than OpenAI.
We do not record or store your audio.
We do not retain transcripts after a translation session ends.
We do not collect usage statistics, crash reports, identifiers, IP addresses, or device fingerprints.
We do not sell or share data with anyone.

Third-party processing — OpenAI

When the Extension streams your tab audio to OpenAI, that data is handled under OpenAI’s own terms:

OpenAI Terms of Use: https://openai.com/policies/terms-of-use
OpenAI Privacy Policy: https://openai.com/policies/privacy-policy
OpenAI API data usage policy: https://openai.com/policies/api-data-usage-policies

Per OpenAI’s current API policy, audio and text sent through the API is not used to train OpenAI models by default. You should review OpenAI’s policies for the most current terms.

We have no control over OpenAI’s data handling and are not responsible for changes to their policies.

Permissions

The Extension requests these permissions:

tabCapture: capture audio from the active tab. Invoked only on your click.
offscreen: run audio processing in a hidden helper document required by Manifest V3.
storage: save preferences and your API key locally.
activeTab: identify the tab to capture.
host permission for https://api.openai.com/*: communicate with OpenAI’s Realtime API.
content scripts on all URLs: render the subtitle overlay on the page you are watching. The content script does not read or send any page content; it only displays text the Extension receives back from OpenAI.

Your rights and choices

Clear your API key: open the Extension popup, delete the value in the API key field, and reload the popup, or simply uninstall the Extension to remove all stored data.
Disable subtitles: uncheck “Show subtitles” in the popup.
Stop a translation session at any time: click Stop.
Uninstall: removes all locally stored data, including your API key.

Children

The Extension is not intended for users under the age of 13. We do not knowingly process data from children.

Changes

If we change this policy, we will update the “Last updated” date above and note the change in the Chrome Web Store listing.

Contact

For questions about this policy or the Extension, email xiaofelix32@gmail.com.