The most common file extension for pictures is .jpg (or .jpeg).
However, other popular extensions include:
- .png: Offers lossless compression, ideal for images with sharp edges or text.
- .gif: Supports animation and transparency, often used for simple graphics or logos.
- .bmp: An uncompressed format, resulting in larger file sizes.
- .tiff: A high-quality format, often used for professional photography.
The specific extension used depends on the image's purpose, desired quality, and file size requirements.