Forge KUI / Pricing

Free precompiled SDKs. Source and services priced separately.

Integrate KUI directly, or discuss engine source and technical services for your team.

01

Precompiled SDK

Free

Integrate the runtime

Build a desktop application with KUI and your own application logic.

  • Initial release for Windows x64
  • C++, C, Go and Rust integration
  • HTML/CSS UI and optional Lua scripting
  • Free commercial use and standalone or bundled redistribution
  • Documentation, lessons and runnable projects
Get the free SDK
02

Engine source

Custom quote

Source licensing and delivery

For teams that need engine changes, source-level diagnosis or internal maintenance.

  • Agree on the version and source scope
  • Internal changes and builds; no external redistribution
  • Set upgrade and maintenance terms
  • Add integration, training or support if needed
Discuss source access
03

Commercial services

Scoped quote

A defined scope of work

Get help with integration, training, or a specific compatibility or performance issue.

  • SDK integration and project setup
  • Team training and practical guidance
  • Diagnosis and focused development
  • Upgrades, compatibility and performance work
Discuss your requirements
Windows x64

The proposed SDK license permits free commercial use and redistribution; source access is for internal use. The selected package license governs actual rights. Source and service prices depend on scope.

Licenses →

Before you choose

Common questions

Where can I check what the free SDK includes?

Check the documentation and capability reference for your version and components. Lua, DevTools, MCP, virtual components and professional extensions have integration and deployment guides. Source licensing covers access to and use of the engine source.

Check capabilities and components →
Which source code is paid?

This means KUI engine source. Downloadable lesson projects, your HTML/CSS, Lua and application code are separate from this source delivery. Engine source, libraries built from it and applications embedding those builds must not be redistributed without separate written permission. Shipping your own application with the official SDK remains governed by its package license.

Read licensing and service details →
Which platforms are available?

The initial website release covers Windows x64. Linux, macOS and HarmonyOS follow on the roadmap; availability depends on the actual SDK release.

View the platform roadmap →
Are source access and commercial services bundled?

They are discussed separately. Integration and training can accompany the free precompiled SDK, and support can be scoped alongside source delivery. Scope, duration and acceptance criteria are agreed for the project.

How do I get a quote?

Describe your language, platform, SDK version, and whether you need source access or a specific service. Include scope and the expected deliverable. Leave an email address if you want to continue by email.