OTB Converter
Convert OTB images to a variety of formats, edit and optimize images online and free.
Drop Files Anywhere to Upload
The OTB (Over The Air Bitmap) file extension, developed by Nokia, is used for transmitting black and white bitmap images between mobile phones, particularly Nokia and Siemens models. These images, with a maximum resolution of 255x255 pixels, are often sent via SMS in either hexadecimal text or binary format. Historically, OTB files were popular in the early days of mobile communication for sending simple graphics, icons, and wallpapers when data transmission speeds were limited.
Choose your OTB image for uploading to our OTB converter.
Select an output format you want.
After the convert is complete, click on the Download button to get your file.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to OTB file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to OTB file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to OTB file location or include path to your input file.