Last updated: 28 October 2026
YT Dub (“we”, “us”) is a browser extension and online service that dubs YouTube videos into the language you choose. Contact for privacy questions and requests: support@naixu9x.store.
| Data | Why |
|---|---|
| Account: when you sign in with Google we receive a Google account identifier, your email address, name and profile picture URL. | To create your account, keep your credits and plan, and prevent abuse of free usage. |
| Subtitle text of the videos you dub (the caption lines of the video, its title, channel, keywords and description). | It is the input of the service: we send it to AI providers (section 4) to translate it and to turn the translation into speech. |
| Translations and audio we generate from that text. | Returned to you, and cached so the next person dubbing the same video does not pay for the same work (section 5). |
| Hashed video ID: a one-way hash of the YouTube video ID, stored with cached translations. It is not stored with your account. | Only to remove a video’s cached content if its owner asks. |
| Usage records: time, provider and voice used, number of characters or tokens, cost, credits charged, errors, together with a random install ID created by the extension and your account ID. | To charge credits, enforce limits, control our costs and fix problems. |
| Anonymous events: such as “dubbing started” with the voice engine, target language, video length and number of sentences. They never include the video ID or title. | To understand which features work and improve them. |
| Translation reports, only if you choose to send one: the video ID, the sentence and its translation with the two neighbouring lines, the problem type, your note, and your account. | To review and fix bad translations. Unlike cached translations, reports are linked to your account so that we can ask follow-up questions and stop spam. |
| Payment data (when paid plans exist): handled by our payment provider, which acts as merchant of record. We receive the plan, status and amount, not your card number. | To give you the plan or credits you paid for. |
We do not collect your browsing history, the pages you visit other than YouTube watch pages where the extension runs, passwords, or the video/audio of YouTube itself. We do not sell your data and do not use it for advertising.
Your settings, a session token, cached translations (per video you dubbed) and a cache of generated audio are stored in the extension’s local storage. You can clear the translation and audio caches from the extension menu. Removing the extension deletes them.
Subtitle text is sent to these providers only to perform the translation or speech you requested. We do not send your email or name to the AI and voice providers.
To make dubbing cheaper and faster, translated sentences and the AI’s topic analysis are cached on our server and reused for anyone dubbing the same video in the same language. Cached entries are keyed by a hash of the content, not by your identity, and are never linked to your account. They are deleted after 180 days without use, or earlier if the cache is full or the content owner asks us to remove it.
If you sign in with Google on our website, we verify your Google ID token (email, name and picture, as in the extension) and set one strictly necessary cookie, ytd_web, that keeps you signed in. It is HttpOnly, limited to the account pages, and removed when you sign out or delete your account. We do not use advertising or analytics cookies. The Google sign-in button is loaded from Google, which may set its own cookies under its own policy.
Account data and usage records are kept while your account exists. When you delete your account (extension popup → “Delete my account”, the Account page on our website, or email us; an active paid plan must be cancelled first) we delete your account, sign-in links, sessions and credit records, and detach usage records and translation reports from you (the report text remains without your identity); the remaining records only carry a random install ID. Records of completed payments (order ID, date, amount, plan or top-up) may be kept without a link to your account for as long as accounting and tax rules require. Refund requests are deleted with your account. Cached translations are not linked to you and follow section 5.
You can ask us to access, correct or delete your data, or object to its processing, by emailing support@naixu9x.store. If you are in the EU/UK you may also complain to your data protection authority.
Data travels over HTTPS. Provider API keys are kept only on our server, encrypted at rest, and are never sent to the extension. Sessions use random tokens stored only as hashes on the server.
The use of information received from Google APIs adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements: we use your Google account data only to provide and improve the YT Dub features described here, we do not transfer it to others except as needed to provide the service or as required by law, we do not use it for advertising, and humans do not read it except with your consent, for security, or to comply with law.
YT Dub is not directed to children under 13 and we do not knowingly collect their data.
If we change this policy in a material way we will update the date above and, where required, notify you in the extension.