Choosing the right format for logo uploads ensures optimal display across all devices and platforms. For scalability and crisp rendering, SVG (Scalable Vector Graphics) is ideal as it maintains quality at any size. Always provide PNG fallbacks for compatibility with older systems.

When raster formats are necessary, use PNG with transparent backgrounds for logos that overlay different backgrounds. For photographic elements within logos, JPEG may be appropriate but watch for compression artifacts. Maintain multiple sizes: favicon (16x16 to 32x32), mobile (up to 200px), and desktop (up to 500px).

Optimize file sizes without sacrificing quality. Use tools like ImageOptim or Squoosh for compression. Test logos on different screen densities (1x, 2x, 3x) and backgrounds. Provide style guidelines including minimum clear space and incorrect usage examples.