EZ ROM Patcher vs ROM Bin Patcher (rombp)

EZ ROM Patcher is a free browser tool for applying patch files to game ROMs, producing modified games such as fan translations, ROM hacks, bug fixes, and restoration patches. The maker says patching runs on the user’s device and that ROMs and patches are not transmitted to a server. It supports IPS, BPS, UPS, APS, RUP, PPF, BSDiff, xdelta/VCDIFF, EBP, and Star Rod .mod patches. A patch creator compares an original ROM with an edited copy and can create IPS, BPS, UPS, APS, RUP, PPF, and EBP patches. A separate checksum tool calculates CRC32, MD5, and SHA-1 hashes and compares them with entered values or .sfv, .md5, and .sha1 files. ZIP archives can be unpacked, with a choice of patch when an archive contains several; RAR and 7z archives must be extracted first. The site says it works in mobile Safari and Chrome, although large disc images may exceed a phone browser’s available memory. Some patch formats include checksums the tool checks, while IPS, PPF, xdelta, and BSDiff do not record one. No account is required, and users supply their own ROM files.

ROM Bin Patcher (rombp) is a free utility for applying IPS and BPS patch files to ROMs, a process commonly used for retro gaming modifications. The maker built it primarily for the RG350M handheld running OpenDingux, and it also runs on desktop Linux. The maker reports testing on the RG350M and Ubuntu 20.04; other OpenDingux MIPS64 handhelds may work, but testing is reported only for the RG350M. To install on OpenDingux, the instructions point users to the latest OPK on the GitHub releases page. When patching, rombp first makes a copy of the source ROM, leaving the original file intact. It saves the patched ROM in the patch file’s directory, using the patch file’s name. Command-line options specify the input ROM, patch type, and output file; starting without options opens the SDL interface. The RG350 build links against uclibc and SDL2. The repository includes an MIT license that permits use and modification subject to its terms and disclaims warranties and liability.