DockerHub

This repository is a maintained list of Docker image mirror addresses that work inside China, written primarily in Chinese. Docker Hub is the main global service where developers download software packages called container images, but it is often slow or inaccessible from within China due to network restrictions. This list exists to help developers in China find working alternatives they can configure to speed up or replace direct Docker Hub access.

Docker is a tool that packages software into containers, which are portable bundles that run the same way on any machine. When someone installs or deploys software using Docker, the tool downloads pre-built images from a registry like Docker Hub. In China, many of the public mirror sites that used to accelerate this process have shut down or been taken offline due to regulatory requirements. A number of previously listed mirrors are struck through in the README to mark them as no longer working.

The repository is actively updated, with the last verification noted as May 2026, confirming which mirrors were still accessible at that time. The working list includes both public community-run proxy services and mirrors from major Chinese cloud providers such as Tencent Cloud and Alibaba Cloud. Some of the listed mirrors require account registration to use, and some are restricted to users accessing from within Chinese IP addresses only.

The README also briefly explains why this problem exists: several major university-run mirror sites in China were ordered to shut down their Docker Hub caches. The repository serves as a crowdsourced, community-maintained reference to track what still works. There are no code files in this project, only documentation.