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Head-to-head · ROM Patching Software

EZ ROM Patcher vs Rom Patcher JS

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score EZ ROM Patcher #2 in ROM Patching Software 7.8/10 Free plan Free plan✓ 2 of 4 features Visit EZ ROM Patcher
Rom Patcher JS #3 in ROM Patching Software 7.7/10 Free plan Free plan✓ 2 of 4 features Visit Rom Patcher JS

EZ ROM Patcher leads on 0 checks, Rom Patcher JS on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreEZ ROM Patcher · 7.8/10
  • Free planboth

EZ ROM Patcher scores higher on our rubric for rom patching software: 7.8 against 7.7 out of 10; our editors rank them #2 and #3.

On supported platforms, EZ ROM Patcher gives you Cross_platform where Rom Patcher JS offers Web.

EZ ROM Patcher is the better fit for broad browser-based ROM patching. Rom Patcher JS is the better fit for web developers and advanced browser users.

  • EZ ROM Patcher fits best

    Broad browser-based ROM patching

  • Rom Patcher JS fits best

    Web developers and advanced browser users

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Side by side

Feature EZ ROM Patcher 7.8/10 Visit ↗ Rom Patcher JS 7.7/10 Visit ↗
At a glance
Editor score 7.8 7.7
Ranking #2 in ROM Patching Software #3 in ROM Patching Software
Best for Broad browser-based ROM patching Web developers and advanced browser users
Pricing model Free Free
Starting price Free Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud
Platforms Web, Windows, macOS, Linux, iOS, Android Web
Built for Solo, Small business Solo, Small business
Features EZ ROM Patcher 2/4 · Rom Patcher JS 2/4
Batch patching Not checked yet Not checked yet
Checksum verification ✓ ✓
Original backup ✓ (best) Not checked yet
Command-line support Not checked yet ✓ (best)
Specs
Patch formats IPS, BPS, UPS, APS, RUP, PPF, xdelta/VCDIFF, BSDiff, EBP, Star Rod .mod IPS, UPS, APS, BPS, RUP, PPF, EBP, BSDiff, Paper Mario Star Rod, VCDiff
Supported platforms Cross_platform Web
Our review
Pros
  • Supports ten patch formats, including IPS, BPS, UPS and xdelta/VCDIFF
  • Creates IPS, BPS, UPS, APS, RUP, PPF and EBP patches
  • Displays hashes and verifies source-ROM checksums where supported
  • Supports IPS, UPS, APS, BPS, RUP, PPF, EBP, BSDiff, Star Rod, and VCDiff
  • Displays CRC32, MD5, and SHA-1 values before patching
  • Embeds into websites and includes a Node.js command-line interface
Cons
  • No separate paid tier for expanded capabilities
  • Browser-based processing may not suit offline workflows
  • Checksum verification applies only to formats that store source checksums
  • Designed around browser and Node.js workflows rather than a native desktop app
  • Its feature set may be more advanced than needed for occasional patching
  • Requires users to work with ROM files and patch formats directly
Our verdict

EZ ROM Patcher is a free browser-based utility for applying patches to ROM files and creating patches from original and modified files. It is aimed at ROM users who want broad format coverage without installing software or creating an…

Read the review →

Rom Patcher JS is an open-source JavaScript tool for applying and creating patches for retro videogame ROMs. It runs in modern web browsers and also supports Node.js, making it a practical fit for web developers, advanced browser users,…

Read the review →
  1. EZ ROM PatcherROM Patching Software 7.8Free plan
  2. Rom Patcher JSROM Patching Software 7.7Free plan

Strengths and trade-offs

  • EZ ROM Patcher — where it wins

    • Supports ten patch formats, including IPS, BPS, UPS and xdelta/VCDIFF
    • Creates IPS, BPS, UPS, APS, RUP, PPF and EBP patches
    • Displays hashes and verifies source-ROM checksums where supported

    Where it doesn't

    • No separate paid tier for expanded capabilities
    • Browser-based processing may not suit offline workflows
    • Checksum verification applies only to formats that store source checksums

  • Rom Patcher JS — where it wins

    • Supports IPS, UPS, APS, BPS, RUP, PPF, EBP, BSDiff, Star Rod, and VCDiff
    • Displays CRC32, MD5, and SHA-1 values before patching
    • Embeds into websites and includes a Node.js command-line interface

    Where it doesn't

    • Designed around browser and Node.js workflows rather than a native desktop app
    • Its feature set may be more advanced than needed for occasional patching
    • Requires users to work with ROM files and patch formats directly

More comparisons

All ROM patching software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update