No. 5 of 29 ·Game Boy Advance Emulators

gbajs3

Web · Self-hosted

Freedom report

Two barsScore 6.3

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

gbajs3 is ranked #5 of 29 in Game Boy advance emulators on Freedom251. 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

Best gbajs3 alternatives

See all 12

Two bars RetroArch Free tier No. 1Free6.8 Two bars RustBoyAdvance-NG Free tier No. 2Free6.7 Two bars SkyEmu Free tier No. 3Free6.7 Two bars ares Free tier No. 4Free6.5 One bar Lemuroid Free tier No. 6Free6.3 One bar OpenEmu Free tier No. 7Free6.3

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 Freedom251

Best Game Boy Advance Emulators in 2026#5 of 29

Is gbajs3 yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote gbajs3

Sources

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