Start with the task
NanoImage tools are designed around one everyday job at a time: make a file smaller, crop a screenshot, convert a format, or clean metadata before sharing.
Keep files private
The first version runs image processing in the browser whenever possible. That means your file does not need to be uploaded for the core tools.
Choose practical settings
For web use, WebP with balanced quality is often a strong choice. For documents, JPG and PDF are still common defaults.