Fiz ferramentas de foto que não enviam nada para servidor — 4 coisas que aprendi

The developer created photo tools that process images locally on the device instead of uploading them to a server. This approach eliminates the need for registration, removes watermarks, and ensures total privacy since no data is stored or leaked. However, the user's hardware becomes the primary limitation. On simpler mobile devices, processing large images or long videos takes more time, leading the developer to create single-purpose tools with visible progress indicators for better performance.