Privacy Policy

Overview

EarDub ("we", "us") is a Chrome extension, operated by Zhang Qianfeng, that translates YouTube videos into AI voice dubbing in your language. This policy explains what data the extension and our backend handle. Dubbing requires a free account; aside from what is needed to run the service and your account, we collect as little data as possible.

What we collect

Account and usage data: dubbing requires a free account. Through our authentication provider, Supabase, we store your email address and an identifier for the sign-in method you chose (Google, Microsoft or email) to identify your account, and we record how many minutes you have dubbed on each video to enforce your plan's quota.

Caption text of videos you dub: when you click the dub button, the video's caption text and basic metadata (video ID, title, language) are sent to our servers so we can translate it and generate audio. We never see videos you merely watch without dubbing.

Settings: your language, voice, and volume preferences are stored in Chrome's extension storage and synced by Chrome if you enabled browser sync.

Feedback: if you submit feedback on our website, we receive your message and the email address you optionally provide.

Payment: paid subscriptions are processed by our Merchant of Record, Waffo Pancake (subscriptions started earlier may be handled by Creem). The Merchant of Record handles your payment; we store only a customer and subscription identifier, your plan, and its status, and never receive or store your full card details. We do not collect your browsing history, search queries, or passwords.

Content moderation: when a dub request or a translated line matches our content screening, we log the video ID, your account ID, the matched terms and the action taken, as described in our Acceptable Use Policy. Moderation logs are kept as long as needed to enforce our policies and meet legal obligations.

How we use data

To provide the dubbing service (translate captions and synthesize speech), to manage your account and subscription, to enforce your monthly plan quota, to debug problems and prevent abuse, and to improve translation and audio quality. We do not sell your data, show ads, or track you across websites.

Third-party processors

To run the service we send the minimum necessary data to: Google and Microsoft (sign-in, when you choose them), Supabase (your account, dubbing job records and usage counts; database and authentication hosting), Waffo Pancake and Creem (your email and payment details, to process subscriptions as Merchant of Record), DeepSeek (caption text, for translation), Microsoft (translated text, for speech synthesis), Cloudflare (generated audio files, for storage and delivery), Vultr (API server hosting) and Vercel (website hosting). Each provider receives only what is required for its function.

Data retention and deletion

Generated audio and dubbing job records are cached so repeat requests for the same video are instant, and may be periodically cleaned up. To request deletion of your account and associated data, email us at support@eardub.com.

Chrome permissions explained

storage: saves your settings. youtube.com access: reads caption data and overlays the dubbing player on the page. udemy.com, udemycdn.com and coursera.org access (optional, requested only when you choose to dub on those sites): reads lecture captions and overlays the dubbing player. scripting: runs EarDub on the optional course sites you allow. activeTab: lets the EarDub menu see which site it was opened on. api.eardub.com access: sends captions to and receives audio from our backend. The extension runs only on these sites.

Children

EarDub is not directed at children under 13, and we do not knowingly collect personal information from them.

Changes to this policy

We will post any changes on this page and update the date above. Significant changes will be highlighted on our website.

Contact

Questions about privacy: support@eardub.com.