GTA 4 Browser Port Project Targets WebAssembly and WebGPU

Grand Theft Auto IV could eventually become playable directly in web browsers through an unofficial project called reGRANDIV, which aims to adapt Rockstar Games' 2008 open-world title for modern web technologies.

The project, published by GitHub user shadany7824, targets WebAssembly and WebGPU, two technologies that can support complex applications and graphics rendering inside compatible browsers.

According to the reGRANDIV GitHub repository, development was still focused on reverse engineering Grand Theft Auto IV as of October 13, 2026.

WebAssembly would provide a way to execute compiled code within the browser environment, while WebGPU could handle graphics rendering through supported hardware.

However, the repository does not establish that the complete game is currently playable, nor does it provide independently verified performance measurements or a confirmed public release date.

The project should also be distinguished from conventional cloud gaming. Its stated goal is to run the game through browser technologies rather than stream gameplay from a remote gaming computer.

Separately, developer itzzace has published another experimental project, gta4-web, targeting the Xbox 360 version of GTA IV through recompilation to WebAssembly and WebGPU.

These efforts represent different approaches to bringing the game into browsers, and their technical progress should not be treated as interchangeable.

Neither project is affiliated with Rockstar Games or Take-Two Interactive. reGRANDIV also states that users must provide files from their own legitimate copy of GTA IV.

For now, the browser adaptation remains an experimental development effort rather than a confirmed, fully playable release.