免費線上 OTB 轉 VIPS 轉換器

This format was created by Nokia for use in its proprietary phones. A bitmap image was used to transfer image files between devices over a wireless connection. It was mainly used when exchanging multimedia text messages that support inserting pictures.

VIPS is a format used by libvips internally for calculation but it can also be used for storing images. It is simple, fast and has no size limit. However, only a few other programs are able to open such files which is why it is better to convert them to a more popular format.