Privacy Policy

1. Who we are

KwaiSaver ("the extension") is a browser extension for Google Chrome that adds a Save button to videos on kwai.com and snackvideo.com, so you can keep a clip as an MP4 file. This policy explains what information the extension does — and, more importantly, does not — handle.

2. What data we collect

None. The extension does not collect, transmit, store remotely, sell or share any personal information or browsing data. Specifically, we do not collect:

• The videos you save — Chrome downloads them directly from Kwai’s own content servers to your disk, and the developer never sees them
• Your Kwai account details, credentials, cookies or session — the extension never asks you to sign in to anything
• Which videos you watch, save or search for
• Your browsing history or the addresses of pages you visit
• Personal details such as your name, email address or identifiers
• Usage analytics, telemetry or crash reports

The extension has no server. There is nowhere for your data to be sent.

3. What is stored on your device

The extension stores only your own settings:

• Your preferences — preferred quality, whether to show the Save button on the page, whether the caption goes in the filename, and whether to save the cover image. These are kept in Chrome’s extension storage (chrome.storage.local) on your computer.
• A short list of recent downloads — held in memory only, so the popup can show progress. It is never written to disk and disappears when the browser closes.

The extension reads the video information the Kwai page has already loaded — the same data the player uses — and hands the video address to Chrome’s own download manager. Chrome then fetches the file directly from Kwai to your disk. There is no intermediary: no KwaiSaver website, no conversion server, and no third party that ever sees the video or the fact that you saved it. Uninstalling the extension removes its settings.

4. Why the extension requests its permissions

5. Third-party services

The extension uses no third-party services, analytics providers, advertising networks or remote APIs. All of its code is bundled inside the extension and runs entirely on your device. The only network activity it causes is Chrome downloading the video from Kwai’s own content servers — the same servers the page streams from.

6. Creators’ choices, and your responsibility

Kwai lets creators turn downloading off for their videos. KwaiSaver reads that setting and refuses to save those clips, telling you why, rather than working around a creator’s choice. The extension saves the original file the page plays and adds nothing to it — if a creator burned a watermark into their own footage before uploading, that is part of the video itself and no tool can remove it. Please save clips for your own offline watching, respect creators’ rights and the law of your jurisdiction, and credit creators if you share their work.

7. Children’s privacy

Because the extension collects no data from anyone, it collects no data from children.

8. Changes to this policy

If a future version of the extension ever changes how data is handled, this policy will be updated and the "Effective" date above revised before that version is released. Material changes will be noted in the extension’s store listing changelog.

9. Contact

Questions about this policy or the extension? Contact the developer at dev1tools@proton.me.