Images and uploads
Compress an image to a file-size limit without changing its dimensions
Compare JPEG and WebP against the same byte budget, inspect the detail and understand when an upload limit cannot be met without resizing.
THE BUDDY CODE BLOG
Notes from the workbench.
Useful walkthroughs, clear explanations and the details that help you make sense of a result. Take an idea straight to the tool and try it for yourself.
Explore the tools →PDF workflows
Find the images making your PDF large, then change only those
Inspect embedded image bytes, preview selective JPEG optimization and review bookmark destinations before exporting reordered PDF pages locally.
Container builds
Why Docker COPY cannot find a file that exists on your computer
Trace build-context paths and Docker ignore rules locally, and distinguish a missing source from an excluded file or an unsupported COPY expression.
Container configuration
Where Docker Compose environment values come from
Distinguish Compose interpolation from the final service environment and trace supplied values back to their files and override sources.
Container images
What is inside your container image? Follow the layers.
Inspect an OCI or Docker-save archive locally, follow file additions and whiteouts, and understand what image-size numbers actually measure.
Audio & calls
Test your microphone’s background noise before a call
Compare two microphone setups, interpret dBFS readings and listen for distracting noise without uploading your recording.