Convert HRZ to OTB
Convert HRZ images to OTB format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The HRZ file extension is associated with Slow Scan Television (SSTV), a method used by amateur radio operators to transmit still images via radio waves. HRZ files store images rendered from SSTV audio signals, typically as 256x240 pixel RGB bitmaps. These files can be viewed using software like XnViewMP or Logipole Konverter. SSTV allows for the transmission of images over high-frequency bands using single-sideband modulation (SSB). The HRZ format is not widely produced by specific programs, but several image viewers support it.
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.
Drag and drop a HRZ file into the upload area to start conversion.
Refine the HRZ image using tools before converting to OTB.
Once the OTB process is finished, the file will be ready for download.
To change HRZ format to OTB, upload your HRZ file to proceed to the preview page. Use any available tools if you want to edit and manipulate your HRZ file. Click on the convert button and wait for the convert to complete. Download the converted OTB file afterward.
After setup, the Vertopal CLI tool converts HRZ image seamlessly into OTB image.
cd to reach the HRZ folder or reference the path.