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FAQ

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The question titles below are extracted from the "FAQ" section on the homepage for unified maintenance in docs.
You can directly expand or rewrite each detailed answer under A:.

1. Does it rely on centralized storage?​

A: Core transfer is end-to-end direct connection whenever possible; the server mainly handles online management and signaling.

2. Can it work on public networks?​

A: Yes. About 80% of user network environments support P2P transfer. If yours does not, please send us a screenshot.

3. Which file types support online preview?​

A: On the receiver's web share page, the following types can be previewed online (no client installation required):

  • Video: standard MP4 (supports streaming while receiving, depending on browser and codec).
  • Images: such as JPG, PNG, GIF, BMP, WebP, ICO, SVG, etc.
  • PDF: can be opened in a new tab after receiving finishes.
  • Audio: such as MP3, WAV, OGG, M4A, AAC, FLAC, OPUS, etc., played with the built-in player.
  • Text and code: such as TXT, Markdown, LOG, JSON/XML/YAML, CSV, and common source-code extensions. Very large files may not render fully inline; download first if needed (the app has a preview size limit for text).

Not supported for online preview (please download and open with local software): Word/Excel/PPT, archives, installers, etc.

4. What if preview is unavailable or video playback fails?​

A:

  • Video: must be browser-decodable MP4. If codec is not supported, download and play locally. Some environments (for example desktop Safari) may limit inline video preview; try Chrome first or download to view.
  • Opened inside WeChat: due to embedded browser capability limits, video preview may require features like MSE. If preview fails, open the same link in a system browser (such as Chrome).
  • Image / PDF: wait until receiving progress completes, then open in a new tab as prompted.
  • If issues persist, please send a screenshot with device model, browser, and filename to yuanzhou_cn@qq.com.

5. How do I report an issue?​

A: Please send screenshots and a brief issue description to yuanzhou_cn@qq.com.