What is a TBN file?
A .TBN file is most commonly a Kodi Thumbnail Image created by the XBMC Foundation. Media center software uses these files to store cover art, episode thumbnails, and channel logos. Technically, these files use the standard JPG image format. The software changes the extension from .JPG to .TBN to distinguish thumbnails from standard photos.
However, the .TBN extension has multiple meanings. It can also be a message base index file for The Bat! email client, a navigation data file for TomTom Navigator, a channel database for satellite receivers using the ALI Corp STB chipset, or a game texture data file for games like Last Chaos.
How to open TBN files?
If the file is a Kodi Thumbnail Image, you can rename the extension to .JPG and open it with any standard image viewer, such as Windows Photos or Apple Preview. To use the thumbnail in Kodi, simply place it in the correct media folder next to your video files.
Because there are multiple possible formats, viewer.online/tbn analyzes .TBN files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Best practices and troubleshooting
When your computer does not recognize a .TBN file, it is usually because the operating system does not associate the extension with an image viewer. Always check the file size and origin. A small file size usually indicates a thumbnail image or an email index file, while larger files might be game textures or database backups.
Summary
Because most .TBN files use the known JPG format, viewer.online/tbn can safely open and display them online, eliminating compatibility problems. If your file is a different type, our tool will identify the actual format so you know exactly how to handle it.