flips.rs vs IUBPatchLib

flips.rs is a free, open-source Rust bindings library for Flips, the Floating IPS patcher. It applies UPS, IPS, and BPS patches, creates IPS and BPS patches, studies IPS patches, and reads BPS metadata. Although the README discusses video game cartridge ROM patching, the API can apply patches to arbitrary sources. The project says Flips creates small BPS and IPS files among widely used patchers. The crate supports no_std when its default std feature is disabled. It uses crc32fast instead of Flips’ naive CRC32 algorithm for BPS and UPS patch creation and application. Checksum verification is supported. Version 0.2.1 is listed, with flips-sys 0.2.1 as a dependency, and Martin Larralde as author. The library is licensed under GNU GPL version 3.0. Distribution links point to crates.io and docs.rs. The listed platform is Linux, and the plan is free.

IUBPatchLib is a free modern C++ library for applying binary patches, with ROM hacks as a stated use case. It supports IPS, UPS, and BPS formats and works on Windows, Linux, macOS, and other POSIX systems. The API uses RAII and move semantics, while the core library has no external dependencies. Developers can build shared or static libraries with CMake and integrate the project using find_package, pkg-config, or FetchContent. Optional memory-mapped I/O is available for file processing. The included iubpatch-cli can apply patches, display patch information, and validate patches. Patch options include checksum verification and backup creation. Tests and command-line tools are enabled by default in the build options; examples and benchmarks are disabled by default. The project is released under the MIT License, which provides the software as-is without warranty. The maker invites contributions through issues or pull requests and says changes are reviewed when tests pass.