全国快递查询 is a free Chrome add-on developed by oszcoszc that provides a convenient and reliable way to track packages across China. With this add-on, users can easily search for and track almost all courier services available in the country.

One of the key features of 全国快递查询 is the ability to add package information with ease. Users can input the relevant details and the records will be automatically saved for future reference. This ensures that tracking information is readily accessible whenever needed.

Furthermore, the add-on notifies users promptly about any changes in the status of their packages. This real-time notification feature ensures that users stay updated on the progress of their deliveries.

Additionally, 全国快递查询 offers a free mobile app for added convenience. Users can seamlessly sync the package information added in the Chrome add-on by scanning a QR code, making it easy to track packages on the go.

Overall, 全国快递查询 is a user-friendly and efficient tool for tracking packages in China. Its comprehensive coverage, seamless synchronization with the mobile app, and timely notifications make it a valuable resource for anyone in need of package tracking services.