EZ ROM Patcher is a free browser tool for applying patch files to game ROMs and creating modified games, including fan translations, ROM hacks, bug fixes, and restoration patches. The maker says patching happens in the browser on the user’s device, without sending ROMs or patches 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 make IPS, BPS, UPS, APS, RUP, PPF, and EBP patches. A separate checker calculates CRC32, MD5, and SHA-1 hashes and compares them with entered values or .sfv, .md5, and .sha1 files. ZIP archives can be unpacked, including a choice of patch when several are present; RAR and 7z files need to be extracted first. The site says it works in mobile Safari and Chrome, though large disc images may exceed a phone browser’s available memory. Some patch types include checksums that are checked; IPS, PPF, xdelta, and BSDiff do not record one. Users provide their own ROM files.
Who it is for
It suits people who already have ROM files and want to apply, create, or verify patches in a browser. Mobile users working with large disc images should account for browser memory limits.
What is good
- Runs patching locally without transmitting ROMs or patches
- Supports a wide range of patch formats
- Can create several patch formats from an original and edited ROM
- Calculates CRC32, MD5, and SHA-1 hashes
- No account or installation is stated as required
What to know first
- Users must provide their own ROM files
- RAR and 7z archives must be extracted first
- Large disc images may exceed phone browser memory
- Some patch formats do not record a checksum
Verdict
EZ ROM Patcher combines patching, patch creation, and checksum checking in a browser-based tool. Its local processing and broad format support are useful, but users need to bring their own ROM files and handle some archives before patching.
EZ ROM Patcher plans and pricing
All plansCompared on ROM patching software
- Free plan
- Yes
- Patch formats
- IPS, BPS, UPS, APS, RUP, PPF, xdelta/VCDIFF, BSDiff, EBP, Star Rod .mod
- Supported platforms
- cross_platform
- Checksum verification
- Yes
- Original backup
- Yes
