# endrift/gbajs

Game Boy Advance in the Browser

Repository: https://github.com/endrift/gbajs
Canonical: https://ross.abutalabs.com/products/gbajs
Homepage: http://endrift.github.com/gbajs/
Language: JavaScript
License: BSD-2-Clause
License Family: permissive
Archived: true
Last push: 2017-01-19T14:54:00+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5138, "days_push": 3513, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1093, forks 446 (observed 2026-08-28T04:03:33.226031+00:00)

## What it is
GBA.js is a Game Boy Advance emulator written from scratch in JavaScript using HTML5 technologies like Canvas and Web Audio, with no plugins required. It runs entirely in cutting-edge web browsers and supports savegame transfer, screenshots, pausing, and realtime clock gamepaks.

## Use cases
- play game boy advance games in the browser
- emulate gba roms without installing software
- run gba games on a chromebook
- embed a game boy advance emulator in a web page
- take screenshots of gba gameplay
- upload and download gba savegames in the browser

## When to choose
- you want to play GBA games purely in a web browser with no plugins or installs
- you need a JavaScript GBA emulator core to embed or build upon
- you want savegame upload/download and screenshot features in-browser

## When to avoid
- you need high accuracy or full game compatibility, especially for homebrew titles
- you need savestates, gamepad support, link cable multiplayer, or cheat codes
- you need an actively developed emulator - the project has not seen releases since 2017
- you target older browsers like IE9 or Safari 5.x

## Facets
- artifact type: application
- maturity: maintenance
- function: game-engine, graphics, audio-processing, gui
- domain: gaming-tools, web-development, browser-extensions
- platform: browser
- tags: emulator, gameboy-advance, html5, retro-gaming, canvas, web-audio, game-development, javascript, web

## Member repositories
- endrift/gbajs (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:33.226031+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:47:50.311031+00:00, confidence not recorded.
  - readme: https://github.com/endrift/gbajs (fetched 2026-08-28T04:03:33.226031+00:00, sha 1c151fdd5637)
- Data as of 2026-08-30T08:39:29.467469+00:00.