Windows
Compatible Applications
File Extension Details
UTF-16 (16-bit Unicode Transformation Format) is a character encoding capable of encoding all 1,112,064 valid character code points of Unicode. It uses one or two 16-bit code units for each character, making it a variable-width encoding. It is widely used in environments where memory is less constrained than in 8-bit systems, such as the internal representation of strings in Java, JavaScript, and the Windows API. Files saved with a .utf16 extension typically contain plain text data encoded in this format, often preceded by a Byte Order Mark (BOM) to indicate whether the byte order is big-endian or little-endian. Because it supports the full range of Unicode characters, including emojis, mathematical symbols, and historical scripts, it is a robust choice for internationalized software applications, though it is less space-efficient than UTF-8 for files consisting primarily of ASCII characters.
Programs that can open and work with .utf16 files
Compatible Applications
Compatible Applications
Compatible Applications
Mobile Applications
About .utf16 files
To open a .utf16 file, you need compatible software. Here are some options:
To convert a .utf16 file to another format, you can:
Like any file type, .utf16 files can be safe or potentially risky depending on their source:
Suggested Questions