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Head-to-head · ROM Hacking Tools

YY-CHR vs NUPS

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score YY-CHR #1 in ROM Hacking Tools 8.4/10 Free plan Free plan✓ 2 of 3 features Visit YY-CHR
NUPS #2 in ROM Hacking Tools 7.3/10 Free plan Free plan✓ 1 of 3 features Visit Nintenlord

YY-CHR leads on 1 check, NUPS on 0, and 3 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 scoreYY-CHR · 8.4/10
  • Free planboth
  • Most featuresYY-CHR · 2 of 3

YY-CHR scores higher on our rubric for rom hacking tools: 8.4 against 7.3 out of 10; our editors rank them #1 and #2.

YY-CHR offers tile/sprite editing; NUPS doesn't.

YY-CHR is the better fit for editing ROM graphics across multiple systems. NUPS is the better fit for applying or creating UPS patches.

  • YY-CHR fits best

    Editing ROM graphics across multiple systems

  • NUPS fits best

    Applying or creating UPS patches

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Side by side

Feature YY-CHR 8.4/10 Visit ↗ NUPS 7.3/10 Visit ↗
At a glance
Editor score 8.4 7.3
Ranking #1 in ROM Hacking Tools #2 in ROM Hacking Tools
Best for Editing ROM graphics across multiple systems Applying or creating UPS patches
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows Windows
Built for Solo Solo
Features YY-CHR 2/3 · NUPS 1/3
ROM editing ✓ ✓
Tile/sprite editing ✓ (best) —
Hex editor Not checked yet —
Specs
Patch formats Not checked yet UPS
Supported platforms Windows Windows
Game scope Multiple games Multiple games
Our review
Pros
  • Supports tile formats for NES, Game Boy, SNES, PCE, GBA, and more
  • Palette editor can load palettes from emulator state files
  • Includes ROM Palette Editor and PRG Pattern Editor utilities
  • Applies UPS patches to selected files
  • Creates patches by comparing original and modified files
  • Displays details about a UPS patch
Cons
  • Focused on ROM graphics rather than full ROM editing
  • Palette display changes do not alter the graphics themselves
  • The latest listed build is dated 2021-06-06
  • Works with UPS patches rather than multiple patch formats
  • Does not provide tile or sprite editing
  • Does not include a hex editor
Our verdict

YY-CHR is a Windows desktop dot editor for viewing and editing graphics contained in retro-game ROMs. Its audience is people working on graphics across multiple older console and computer formats, rather than users looking for a full ROM…

Read the review →

NUPS is a free desktop utility for creating and applying UPS binary patches, including patches for game ROM files. It is aimed at people who need to apply a UPS patch to a file or produce one from an original and a modified file. The tool…

Read the review →
  1. YY-CHRROM Hacking Tools 8.4Free plan
  2. NUPSROM Hacking Tools 7.3Free plan

Strengths and trade-offs

  • YY-CHR — where it wins

    • Supports tile formats for NES, Game Boy, SNES, PCE, GBA, and more
    • Palette editor can load palettes from emulator state files
    • Includes ROM Palette Editor and PRG Pattern Editor utilities

    Where it doesn't

    • Focused on ROM graphics rather than full ROM editing
    • Palette display changes do not alter the graphics themselves
    • The latest listed build is dated 2021-06-06

  • NUPS — where it wins

    • Applies UPS patches to selected files
    • Creates patches by comparing original and modified files
    • Displays details about a UPS patch

    Where it doesn't

    • Works with UPS patches rather than multiple patch formats
    • Does not provide tile or sprite editing
    • Does not include a hex editor

More comparisons

All ROM hacking tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update