Drop file here. 150 MB maximum file size.
A CID is a map description file created by Navigator, a celestial navigation program. Includes information about a .GIF, .JPG or .BMP graphic image. The CID files include the name of the map, the description of the file, the reference points that define the pixels of the map, image, digital signature of the map, image MD5 and load limits.
An extension of the format d' image .PNG that uses indexed colors and supports animations d' images; similar to an animated .GIF file, but uses higher compression and full alpha support (multi-transparency level) 2.
Access powerful and secure free online CID tools to convert, view, edit, merge, split, and compare CID files β all without installing any software. Our tools support the .CID (Navigator Chart Image Description File) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your CID files directly from your device with ease.
Chose or drag & drop your CID file, click Convert to MNG, and download the MNG file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert CID to MNG in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert CID to 100s of file formats, without any limit, registration and downloading, 100% free and online CID converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
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