Should I use Alpine-based Docker image tags?

Yes. Alpine-based tags (e.g., nginx:alpine, redis:7-alpine) produce significantly smaller images, which means faster pulls and less disk usage.

What happens if I omit the tag when pulling a Docker image?

The :latest tag is used by default if you omit a tag. However, specifying an explicit version is recommended for reproducibility.

Yes. Multiple registries are a Pro feature. Free users can use Docker Hub only. Configure private registries in Settings → Registries.

Right-click an unused image in the Images list and select Delete to remove it and free disk space.

Search Docker Hub, pull images by name and tag, and pull from private registries.

Docker is running
For private registries, you must be logged in (configure in Settings → Registries)

Click Image Library in the sidebar
Click the Pull Image button in the toolbar
In the search field, type: nginx
Results from Docker Hub appear showing:
- Image name, description, star count, official badge
Click nginx to select it
Choose a tag from the dropdown — e.g., alpine, latest, 1.25
Click Pull
A progress indicator shows pull progress (downloading layers)
When complete, the image appears in the Images list

The Images list shows all local images with:
- Repository name and tag
- Image ID (short hash)
- Size on disk
- Created date
Pull progress shows a bar for each layer being downloaded
After pulling, the image is ready to use when creating new containers

Use Alpine-based tags (e.g., nginx:alpine, redis:7-alpine) for smaller image sizes
The :latest tag is used by default if you omit a tag — but specifying an explicit version is recommended for reproducibility
Multiple registries are a Pro feature — Free users can use Docker Hub only
You can delete unused images by right-clicking → Delete to free disk space