Lua
lua.orgUse a compact scripting language on its own or embed its interpreter through a documented C API.
Use a compact scripting language on its own or embed its interpreter through a documented C API.
Reference screens, flows and animations from shipped products
iPad pixel drawing with dither brushes and layered animation
Compare how design systems name and document UI components
Find official colour-management specifications, registries and technical resources.
Inspect colour values and CSS examples, then browse community palettes.
Compare colour references, build complements and convert colour data.
Platform design guidance for Apple app and game experiences
Browse named CSS colours beside their values and aliases.
Build versioned documentation sites from content maintained with a web-development project.
Save notes, links, and images as cards and revisit them through search and reflective prompts.
Official humanitarian symbols with category metadata and presentation exports.
Connect team knowledge, working documents, and project references in a shared workspace.
A detailed reference for mathematical functions
Chemical reference data with documented data collections
Fish reference lookup by common or scientific name
Medical study material linked to a clinical reference library
Photo-based plant identification and care references
A web book about typography, composition and page layout.
Natural-media painting with editable brush effects and masks
AI video generator for making faceless short videos for social channels.
Export a posed scene as a transparent image or a licensed 3D handoff
AI video generator that turns text prompts and images into short clips.
Instructional writing reference from UW-Madison