Joint Photographic Experts Group (JPEG) is a widely used image compression format in the digital world. It employs lossy compression techniques to reduce the file size of images without compromising visual quality significantly.

Developed in 1992, JPEG has become the standard for storing and sharing photographs on the internet. It supports 24-bit color depth and can display millions of colors. The compression algorithm analyzes the image and removes redundant information, resulting in smaller file sizes.

JPEG files are compatible with almost all devices and software, making them highly versatile. However, due to the lossy compression, repeated editing and saving can lead to a loss of image quality, known as generation loss.

Despite its limitations, JPEG remains a popular choice for digital images, striking a balance between file size and visual fidelity.