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https://github.com/ultralight-ux/ultralight

Lightweight, high-performance HTML renderer for game and app developers.
https://github.com/ultralight-ux/ultralight

cross-platform desktop-apps directx-11 game-development gamedev games gpu html-renderer linux macos metal opengl ultralight webkit windows

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Lightweight, high-performance HTML renderer for game and app developers.

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README 

        





[Website](https://ultralig.ht) | [Chat on Discord!](https://chat.ultralig.ht) | [Browse C++ API](https://ultralig.ht/api/cpp/1_3_0/) | [Browse C API](https://ultralig.ht/api/c/1_3_0/) | [Support Docs](https://docs.ultralig.ht) | [Twitter](https://twitter.com/ultralight_ux)



## :video_game: Discord Chat



Got a question about Ultralight? [Chat with us on Discord! ](https://chat.ultralig.ht)



# :star: About



Ultralight makes it easy for C/C++ developers to seamlessly integrate web-content into games and desktop apps.



Use our lightweight, high-performance renderer to display HTML/JS/CSS on a variety of platforms and hardware targets.



## Key Features





1. :zap: Modern HTML/JS/CSS Support:




    Based on WebKit, Ultralight enjoys many of the same cutting-edge web features as Apple's Safari browser, simplifying development and reducing production costs.




2. :sparkles: Powerful and Lightweight:




    Thanks to its highly-customizable CPU and GPU renderers, Ultralight offers developers unprecedented control over performance and memory usage-- making it the go-to choice for users who demand speed in constrained environments.




3. :jigsaw: Cross-Platform Compatibility:




    With support for Windows, macOS, Linux, Xbox, PS4, and PS5 (and ARM64 coming in 1.4), Ultralight ensures your content displays smoothly and consistently on a wide range of platforms and hardware targets.




4. :repeat: Deep C/C++ and JavaScript Integration:




    Ultralight facilitates seamless C/C++ and JavaScript integration through direct access to the JavaScriptCore API. Expose native state to web pages, extend JavaScript classes, define C/C++ callbacks, and more.




5. :wrench: Low-Level Customization:




    Ultralight allows developers the ability to override platform-specific functionality-- granting control over such things as file-system access, clipboard management, font loading, and more to suit the unique needs of each target environment.






## :space_invader: For Game Developers



Developed in collaboration with top AAA game studios, Ultralight is engineered to display high-performance web-content across a diverse set of hardware targets and game engine environments.



Choose between our CPU renderer for fast, reliable rendering or our customizable GPU renderer for unparalleled animation performance.



__→ Learn more by visiting our [Game Integration Guide](https://docs.ultralig.ht/docs/integrating-with-games).__



## :desktop_computer: For Desktop-App Developers



Get the best of both worlds-- save time by building your front-end with HTML/CSS/JS while retaining the power and performance of C/C++.



Embed the renderer directly within your existing run loop or leverage our AppCore framework to do all the heavy lifting for you, offering convenient native window management and accelerated rendering.



__→ Learn more by visiting our [Desktop App Guide](https://docs.ultralig.ht/docs/writing-your-first-app).__



## :classical_building: Architecture



Ultralight is a platform-agnostic port of WebKit for games and desktop apps.



Portions of the library are open-source, here's how the library is laid out:



|                    | Description                              | License     | Source Code              |

|--------------------|------------------------------------------|-------------|--------------------------|

| __UltralightCore__ | Low-level graphics renderer              | Proprietary | (Available with license) |

| __WebCore__        | HTML layout engine (WebKit fork)         | LGPL/BSD    | [ultralight-ux/WebCore](https://github.com/ultralight-ux/WebCore) |

| __Ultralight__     | View, compositor, and event logic        | Proprietary | (Avaiable with license)  |

| __AppCore__        | :sparkles: Optional, desktop app runtime | LGPL        | [ultralight-ux/AppCore](https://github.com/ultralight-ux/AppCore) |



### :rocket: Dual High-Performance Renderers



We offer two different renderers for integration into a variety of target environments.



 :sparkle: CPU Renderer :eight_spoked_asterisk: GPU Renderer



* Fast, lightweight, and easy to integrate.

* Renders to a 32-bit BGRA pixel buffer.

* Based on Skia, accelerated via multi-threaded SIMD.

* See the [Game Integration Guide](https://docs.ultralig.ht/docs/integrating-with-games) for more info.



* High-performance, customizable, and portable.

* Renders on the GPU to a texture.

* Accelerated via tesselated geometry and pixel shaders.

* See [Using a Custom GPUDriver](https://docs.ultralig.ht/docs/using-a-custom-gpudriver) for more info.



## :lock: Licensing



It's easy to license Ultralight in projects big and small.



 :heart_eyes: Free License :crown: Commercial License



 * __Free__ for non-commercial use.

 * __Free__ for commercial use by indie companies (< $100K annual revenue).

 * Full SDK available for all users, download and try now.

 * See [LICENSE.txt](license/LICENSE.txt) for more info.



* Paid licenses for commercial use.

* Enterprise licensing, custom contracts, and volume discounts available.

* Performance tools, extra configurations, and source code.

* See [our website](https://ultralig.ht) for more info.



## :eyes: Getting the Latest SDK



You can get the latest SDK for each platform below (contact us for Xbox, PS4, and PS5):



 * [Windows       | x64](https://ultralight-sdk.sfo2.cdn.digitaloceanspaces.com/ultralight-sdk-latest-win-x64.7z)

 * [Linux         | x64](https://ultralight-sdk.sfo2.cdn.digitaloceanspaces.com/ultralight-sdk-latest-linux-x64.7z)

 * [macOS         | x64](https://ultralight-sdk.sfo2.cdn.digitaloceanspaces.com/ultralight-sdk-latest-mac-x64.7z)



### Getting Archived Binaries for a Specific Commit



Pre-built binares are uploaded to the following S3 buckets every commit:



 * __Archived Binaries__: 



## :hammer_and_wrench: Building the Samples



To build the samples in this repo, please [follow the instructions here](https://docs.ultralig.ht/docs/trying-the-samples).



## :information_source: Useful Links



| Link                       | URL                                                 |

| -------------------------- | --------------------------------------------------- |

| __Join our Discord!__      |                           |

| __Docs / Getting Started__ |                           |

| __Browse C++ API__         |                 |

| __Browse C API__           |                   |

| __Follow Us on Twitter__   |                  |