• Written in C (C11), compatible with size_t and uintmax_t types for some specifiers
• Implements output functions compatible with printf, vprintf, snprintf, sprintf and vsnprintf
• Low-memory footprint, suitable for embedded systems
• Reentrant access to all API functions
• Operating-system ready
• Requires single output function to be implemented by user for printf-like API calls
• With optional functions for operating systems to protect multiple threads printing to the same output stream
• Allows multiple output stream functions (unlike standard printf which supports only one) to separate parts of application
• Added additional specifiers vs original features
• User friendly MIT license

Fresh contributions are always welcome. Simple instructions to proceed:

1. Fork Github repository
2. Follow C style & coding rules already used in the project
3. Create a pull request to develop branch with new features or bug fixes

Alternatively you may:

1. Report a bug
2. Ask for a feature request