Live Code Playground
Write HTML, CSS, and JavaScript in real-time and see your creation come to life instantly in the preview window.
Launch ToolEmoji Entity Explorer
Learn how HTML decimal codes create icons by editing code snippets directly.
Launch ToolUnicode Range Finder
Enter a starting number to discover the next 255 symbols, emojis, and characters.
Launch ToolIoT Playground
Build a web page that controls your Particle Photon device through the Particle Cloud API.
Launch ToolML Classifier Playground
Wrap your trained Teachable Machine model in a live classifier web page.
Launch ToolWeb Showcase
See all the pages built by students in the playground — click any card to view it live.
View Showcase