A thumbnail image is a small, postage-stamp-sized version of a larger image that is directly linked to the original file. Its reduced size allows for quick loading and minimal storage use, making it ideal for previewing images without opening the full-resolution version.
Thumbnail images are commonly used in photo cataloguing software, digital galleries, and websites to organise and display multiple images efficiently. For photographers and web designers, thumbnails improve navigation, enhance user experience, and allow viewers to quickly browse large collections of images.