Raylib Web Demo

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Prerequisites

Download WASM build of Raylib

Download and Install Emscripten

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Running the Demo

Open 'raylib-5.5_webassembly'. Copy raylib.h to 'include' and libraylib.a to 'include/web'

Set EMSDK_PATH and BROWSER in the makefile

Open a terminal at the project path, run make and enjoy the demo

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Modifying the Demo

Change PROJECT_NAME, PROJECT_VERSION, BASE_WIDTH, BASE_HEIGHT in the makefile

Add build targets for other platforms in the makefile (more info here)

Customize the embed shell

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Integration with itch.io

Install itch.io butler. Create an itch.io page for your game, set ITCH_USER and ITCH_PAGE in the makefile

Run make release_web to build and zip your game. Run make publish_web to upload directly to your itch.io page

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Changelog

18/08/2025

main.c

+ added `CalibrateScreen()` in favor of variable `recalculate_screen_resolution`
* framerate is now calculated based on monitor refresh rate
* reordered functions for improved readability (hopefully)
* renamed `Init()` to `Load()`

makefile

+ added `clean` target
* moved `test_web` target to top so `make` automatically executes it
* changed default EMSDK_PATH to `~/Documents/emsdk`

shell.html

- removed superfluous things including C/JS interop function `saveFileFromMEMFSToDisk()`

README.md

+ added changelog
* updated banner
* updated formatting