Convert to OTB

OTB is a simple image format once used on older mobile phones for tiny black-and-white pictures like logos and icons. Use it if you’re opening old phone graphics or need a small, simple image for a vintage device or retro project.

• •Great for very small, simple graphics (logos, icons, pixel art) and keeps file size tiny.
• •Handy for converting old phone images into common formats like PNG or JPG so you can view and share them easily.
• •You can also convert from PNG/JPG to OTB when you need a graphic that works on older phones.
• •Best for black-and-white artwork; not suitable for detailed photos or rich color images.
• •Some modern apps may not open OTB directly, but it’s easy to convert both ways with image conversion tools.