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Head-to-head · Multi-System Emulators

Foxol vs EmulatorJS

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Foxol #2 in Multi-System Emulators 9.1/10 Free plan Free plan✓ 3 of 5 features Visit Foxol
EmulatorJS #5 in Multi-System Emulators 8.5/10 Open source ✓ 3 of 5 features Visit EmulatorJS

Foxol leads on 1 check, EmulatorJS on 1, and 4 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 scoreFoxol · 9.1/10
  • Free planonly Foxol

Foxol scores higher on our rubric for multi-system emulators: 9.1 against 8.5 out of 10; our editors rank them #2 and #5.

EmulatorJS leads on supported systems: 36 versus 20. Foxol offers netplay; EmulatorJS doesn't.

Foxol is the better fit for cross-device users wanting cloud saves and multiplayer. EmulatorJS is the better fit for websites needing broad browser emulation.

  • Foxol fits best

    Cross-device users wanting cloud saves and multiplayer

  • EmulatorJS fits best

    Websites needing broad browser emulation

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Foxol 9.1/10 Visit ↗ EmulatorJS 8.5/10 Visit ↗
At a glance
Editor score 9.1 8.5
Ranking #2 in Multi-System Emulators #5 in Multi-System Emulators
Best for Cross-device users wanting cloud saves and multiplayer Websites needing broad browser emulation
Pricing model Free plan + paid Free
Starting price — Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud, Desktop, Mobile Self-hosted
Platforms Web, Windows, macOS, Linux, iOS, Android Web, iOS, Android
Support Email, Community Community, Docs
Built for Solo, Small business Small business, Mid-market, Enterprise
Features Foxol 3/5 · EmulatorJS 3/5
Android support ✓ ✓
Arcade support Not checked yet ✓ (best)
Netplay ✓ (best) —
BIOS required Not checked yet Not checked yet
Shader/upscaling ✓ ✓
Specs
Supported systems 20 36 (best)
License Not checked yet Open-source
Our review
Pros
  • Supports more than 20 classic gaming systems
  • Cloud save synchronization and cross-device play
  • Online multiplayer, remote co-op, and Link Cable functionality
  • Embeddable WebAssembly RetroArch cores cover 36 systems.
  • Includes save states, recording, cheats, shaders, and cache management.
  • Maps keyboards and controllers for up to four players.
Cons
  • Requires legally obtained classic game files
  • Focused on classic systems rather than current consoles
  • Advanced features may suit enthusiasts more than casual players
  • Netplay is not currently supported.
  • Its scope centers on web embedding, not standalone ROM management.
  • The JavaScript and WebAssembly approach suits web projects more than native apps.
Our verdict

Foxol is a cross-platform emulator platform for playing legally obtained classic game files in a browser, on Windows, macOS, Linux, iOS, and Android. It supports more than 20 gaming systems, including Game Boy, Game Boy Color, Game Boy…

Read the review →

EmulatorJS is an open-source JavaScript framework for developers who want to embed playable retro-system emulation into websites. It uses RetroArch libretro cores compiled to WebAssembly and provides generated embed code for browser-based…

Read the review →
  1. FoxolMulti-System Emulators 9.1Free plan
  2. EmulatorJSMulti-System Emulators 8.5Open source

Strengths and trade-offs

  • Foxol — where it wins

    • Supports more than 20 classic gaming systems
    • Cloud save synchronization and cross-device play
    • Online multiplayer, remote co-op, and Link Cable functionality

    Where it doesn't

    • Requires legally obtained classic game files
    • Focused on classic systems rather than current consoles
    • Advanced features may suit enthusiasts more than casual players

  • EmulatorJS — where it wins

    • Embeddable WebAssembly RetroArch cores cover 36 systems.
    • Includes save states, recording, cheats, shaders, and cache management.
    • Maps keyboards and controllers for up to four players.

    Where it doesn't

    • Netplay is not currently supported.
    • Its scope centers on web embedding, not standalone ROM management.
    • The JavaScript and WebAssembly approach suits web projects more than native apps.
  • Foxol9.1/10 · Free plan

    Foxol combines multi-system emulation, cloud saves, and multiplayer across web, desktop, and mobile.

    Visit FoxolFull verdict →
  • EmulatorJS8.5/10 · Open source

    A broad, open-source browser emulator for embedded retro-system play, without current netplay.

    Visit EmulatorJSFull verdict →

More comparisons

All Multi-System emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update