Get major Docker registry mirrors in China with one click to fix slow Docker Hub access.
https://registry.cn-hangzhou.aliyuncs.comdaemon.json config snippet
"registry-mirrors": ["https://registry.cn-hangzhou.aliyuncs.com"]https://mirror.ccs.tencentyun.comdaemon.json config snippet
"registry-mirrors": ["https://mirror.ccs.tencentyun.com"]https://repo.huaweicloud.comdaemon.json config snippet
"registry-mirrors": ["https://repo.huaweicloud.com"]https://mirror.baidubce.comdaemon.json config snippet
"registry-mirrors": ["https://mirror.baidubce.com"]https://docker.mirrors.ustc.edu.cndaemon.json config snippet
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]https://hub-mirror.c.163.comdaemon.json config snippet
"registry-mirrors": ["https://hub-mirror.c.163.com"]
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Restore Python bytecode .pyc files into readable source code for easy code auditing and learning. Supports mainstream versions.
JSON to TypeScript Converter
Automatically convert JSON data into TypeScript interfaces or type aliases for frontend data modeling and API integration.
JSON Formatter
Process JSON data online: format, minify, and validate to boost your development and debugging efficiency.
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Professionally compare differences between two texts or code snippets. Highlights additions, deletions, and modifications to assist with code review, document merging, and version control.
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Developers in China often experience image pull times from Docker Hub that are 8 to 10 times longer than normal. This tool aggregates registry mirror URLs from 7 major providers, including Alibaba Cloud and Tencent Cloud. By utilizing CDN caching mechanisms, it boosts image pull speeds by over 300%. A Docker registry mirror is essentially a proxy service: if a request hits the local cache, it returns immediately; if not, it pulls from Docker Hub and caches it.
docker info | grep "Registry Mirrors" to verify the configuration.How do I check if the Docker registry mirror is working?
Run the docker info command and check if the configured mirror URL is included in the output.
Will the mirror URL leak my container data?
No. The registry mirror only proxies image pull requests and does not interact with container runtime data. All providers use HTTPS encrypted transmission.
Please back up your daemon.json before modifying it. Windows users need to configure this via the Docker Desktop interface. Alibaba Cloud URLs require replacing the placeholder with your personal ID. You must restart the Docker service after configuration.
We recommend prioritizing the mirror URL that matches your current cloud environment (e.g., use the Alibaba Cloud mirror for Alibaba Cloud ECS). Tests show that the pull time for an Ubuntu 22.04 image dropped from a default of 6 minutes and 12 seconds to just 1 minute and 3 seconds. Typical configuration example:{"registry-mirrors":["https://registry.docker-cn.com"]}