Privacy Policy

Last updated: June 19, 2026

This policy explains what data the SubClipper browser extension and its supporting backend services collect, how that data is used, and your rights regarding it. We've kept it short and plain — SubClipper collects very little data, and what it does collect is used only to make the extension work.

Short version: We collect your email address (to track your monthly quota) and cropped subtitle frames (to run OCR on them). Frames are not stored. Translation happens entirely in your browser, so translated text never leaves your device. We do not sell or share your data.

1. What we collect

Data	How we collect it	What it's used for
Email address	You provide it via the ExtensionPay signup flow when you first install the extension.	Identifies your account and tracks your monthly usage quota.
Cropped subtitle frames	When you actively click "Capture" or run extraction, the cropped subtitle region of the video is sent to our OCR backend.	OCR (optical character recognition) — extracting the text shown in the subtitle.
Usage counters	Each successful capture and each second of extraction is counted server-side, keyed by your email.	Enforcing your plan's monthly quota.
Subscription status	Provided by ExtensionPay when you upgrade or cancel.	Determining which plan tier you have access to.
User preferences	Stored locally in your browser via `chrome.storage`.	Remembering your selected source language, translation target, and theme.

2. What we don't collect

To be explicit, SubClipper does not collect any of the following:

Your name, address, phone number, or any other personal identifier beyond email
Payment or financial information (see "Third parties" below — payments are handled by ExtensionPay on a separate domain)
Passwords, security questions, or other authentication information
Your browsing history or list of visited pages
The full video you're watching — only the cropped subtitle region, sent only when you actively use the extension
Audio, GPS location, or any sensor data
Keystroke logs, mouse movement, or other analytics tracking

3. How long we keep it

Cropped subtitle frames: Processed in memory and discarded immediately. Never written to disk on our servers, never logged.
Email address: Stored for as long as your account exists. Removed if you request deletion (see Section 7).
Usage counters: Reset on the 1st of each calendar month. Historical counts are not retained.
User preferences: Stored locally in your browser; deleted when you uninstall the extension.

4. Third parties

SubClipper relies on a small number of third-party services to function. Each is listed here with the data they receive:

ExtensionPay (extensionpay.com)

Handles user signup, subscription management, and payment processing. When you create an account or upgrade a plan, you interact directly with ExtensionPay on their own domain. We receive your email and subscription status from them, but never your payment card information.

Modal (modal.com)

Hosts the OCR backend that processes your cropped subtitle frames. Frames are sent here only when you actively capture or extract subtitles. Modal does not retain frames after processing.

Hugging Face (huggingface.co)

Hosts the pre-trained translation model that SubClipper downloads on first use. The download is a one-way file transfer — your browser fetches the model weights file, but no user data is sent to Hugging Face. After the first download, the model is cached locally and translation runs entirely on your device.

5. Where translation happens

All translation is performed locally in your browser using a downloaded machine learning model. The text you translate never leaves your device. This is by design — translation is the most privacy-sensitive part of the extension, and we built it to require no network calls per translation.

6. Data security

All communication between the extension and our backend is encrypted via HTTPS.
Frames are processed in memory only and discarded after the OCR call completes.
Usage data is stored in Modal's persistent key-value store, accessible only to our backend code.
Payment processing is delegated to ExtensionPay, which is responsible for PCI compliance.

7. Your rights

You can:

Access or correct your data: Email us at support@subclipper.com and we'll respond within 7 days.
Delete your account: Email us with "Delete my account" in the subject line. We'll remove your email and usage record from our backend within 7 days. You can also cancel your subscription via the ExtensionPay account portal at any time.
Export your data: Your usage history is just two numbers (extraction seconds + capture count for the current month) — let us know if you'd like a copy.
Stop using the extension: Uninstalling SubClipper from Chrome removes all locally stored data. To also remove your server-side account, request deletion as above.

8. Children's privacy

SubClipper is not directed at children under 13. We do not knowingly collect data from anyone under 13. If you believe a child has signed up, please contact us and we'll delete the account.

9. Changes to this policy

If we materially change how we handle data, we'll update this page and revise the "Last updated" date at the top. Significant changes will be announced via the extension itself or by email to active users.

10. Contact

Questions, concerns, or requests: support@subclipper.com.