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Head-to-head · Game Boy Emulators

Coffee GB vs ChillyGB

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Coffee GB #4 in Game Boy Emulators 7.4/10 Open source ✓ 5 of 5 features Visit Coffee GB
ChillyGB #7 in Game Boy Emulators 6.8/10 Free plan Free plan✓ 3 of 5 features Visit ChillyGB

Coffee GB leads on 2 checks, ChillyGB on 1, and 3 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCoffee GB · 7.4/10
  • Free planonly ChillyGB
  • Most featuresCoffee GB · 5 of 5

Coffee GB scores higher on our rubric for game boy emulators: 7.4 against 6.8 out of 10; our editors rank them #4 and #7.

ChillyGB offers free plan; Coffee GB doesn't publish it. Coffee GB offers link cable emulation; ChillyGB doesn't. Coffee GB offers netplay; ChillyGB doesn't.

Coffee GB is the better fit for cross-platform play with advanced hardware features. ChillyGB is the better fit for open-source GB/GBC emulation with debugging.

  • Coffee GB fits best

    Cross-platform play with advanced hardware features

  • ChillyGB fits best

    Open-source GB/GBC emulation with debugging

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Coffee GB 7.4/10 Visit ↗ ChillyGB 6.8/10 Visit ↗
At a glance
Editor score 7.4 6.8
Ranking #4 in Game Boy Emulators #7 in Game Boy Emulators
Best for Cross-platform play with advanced hardware features Open-source GB/GBC emulation with debugging
Pricing model Free Free
Starting price Not published Not published
Free plan Not published ✓ (best)
Free trial — —
Deployment Desktop, Mobile Cloud, Desktop
Platforms Windows, macOS, Linux, Android Web, Windows, Linux
Built for Solo, Small business Solo, Small business
Features Coffee GB 5/5 · ChillyGB 3/5
Save states ✓ ✓
Link cable emulation ✓ (best) —
Netplay ✓ (best) —
Real-time clock ✓ ✓
Controller support ✓ ✓
Specs
Supported systems Game Boy (GB/DMG), Game Boy Color (GBC/CGB), Super Game Boy features Game Boy (DMG); Game Boy Color (CGB)
Supported platforms Windows, macOS, Linux, Android WebAssembly/browser; Windows; Linux; Nintendo Switch
Our review
Pros
  • Supports Windows, macOS, Linux, and Android
  • Includes rollback netplay, save management, and rewind
  • Emulates Camera, Printer, rumble, tilt, and real-time clocks
  • Supports GB, GBC, multiple cartridge types and Pocket Camera
  • Includes BESS-compliant save states, RTC support and cheats
  • Offers browser access plus a debugger with instruction and memory views
Cons
  • Focused on Game Boy, Game Boy Color, and Super Game Boy features
  • ROM files are not included
  • No iOS platform is listed
  • No emulated link-cable support
  • No netplay or online multiplayer
  • Focuses on Game Boy and Game Boy Color systems
Our verdict

Coffee GB is an open-source emulator for Game Boy, Game Boy Color, and Super Game Boy features. It is designed for players who want one application across Windows, macOS, Linux, and Android, with support for keyboard and game-controller…

Read the review →

ChillyGB is a free, open-source emulator for Nintendo Game Boy (DMG) and Game Boy Color (CGB) software. Written in C, it provides native builds for Windows and Linux alongside a WebAssembly version that runs in a browser. Its audience…

Read the review →
  1. Coffee GBGame Boy Emulators 7.4Open source
  2. ChillyGBGame Boy Emulators 6.8Free plan

Strengths and trade-offs

  • Coffee GB — where it wins

    • Supports Windows, macOS, Linux, and Android
    • Includes rollback netplay, save management, and rewind
    • Emulates Camera, Printer, rumble, tilt, and real-time clocks

    Where it doesn't

    • Focused on Game Boy, Game Boy Color, and Super Game Boy features
    • ROM files are not included
    • No iOS platform is listed

  • ChillyGB — where it wins

    • Supports GB, GBC, multiple cartridge types and Pocket Camera
    • Includes BESS-compliant save states, RTC support and cheats
    • Offers browser access plus a debugger with instruction and memory views

    Where it doesn't

    • No emulated link-cable support
    • No netplay or online multiplayer
    • Focuses on Game Boy and Game Boy Color systems

More comparisons

All game boy emulators comparisons → · Full ranking →

Guides on game boy emulators

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update