gbajs3

6.9easy start · #4 of 29
in Game Boy Advance Emulators

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on self-hosted, Web.

gbajs3 is ranked #4 of 29 in Game Boy advance emulators on The Geeks Club. It runs on Self-hosted, Web. There is a free plan.

gbajs3 plans and pricing

All plans

Free Free Freely licensed · runs in a modern browser github.com · 3 Oct 2026

Compared on Game Boy advance emulators

Free plan: Yes
Platform scope: desktop and mobile
Save states: Yes
Cheat support: Yes
Open source: Yes

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The record

What it does: gbajs3 is a browser based Game Boy Advance emulator that works in modern browsers without plugins.
Emulation cores: It supports the mGBA WebAssembly core and the gbajs pure JavaScript core, with interchangeable cores.
Intended use: The maker says the project was driven by a need to play modern GBA ROM hacks outside desktop applications without sideloading or building through Xcode.
Controls: Features include remappable keyboard bindings and virtual controls for desktop and mobile.
Mobile and offline: The project lists mobile UI support and offline progressive web app support.
Fast forward: The project includes a fast forward feature.
Save states and cheats: Save states and cheat codes are supported by the mGBA core only.
Debugger: A surface level assembly debugger is available for the gbajs core only.
Realtime clock: Both emulator cores support a realtime clock.
Server components: The feature list includes a Go server for logged in user support, an Nginx server for gbajs3 content, an admin UI, and PostgreSQL support.
Self hosting: The setup instructions say to configure an environment file and start the services with Docker Compose.
Security setup: The setup guide says the default admin password is admin and instructs users to change it immediately after logging in.
Limits and roadmap: The README lists debugger and server enhancements as work to do and describes S3 backed file storage as a future server enhancement.
Downloads: The GitHub releases page says there are no releases.
Price from: Free

Where it ranks on The Geeks Club

Best Game Boy Advance Emulators in 2026#4 of 29

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Sources

github.com/oxicodine/gba· checked 3 Oct 2026
github.com/oxicodine/gba/releases· checked 3 Oct 2026