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Blaze Playground

Edit the Template, JavaScript, and CSS below to see Blaze-NG render in real time. Pick a preset from the dropdown to explore different features.

No build step needed

Blaze-NG compiles Spacebars templates to render functions entirely in the browser. What you see here runs 100% client-side — no server, no WebContainers, no WASM required.

What to try

  • Counter — Reactive state with ReactiveVar, conditional disabled attribute, {{#if}} blocks
  • Conditionals — Nested {{#if}} / {{#unless}} with a traffic light state machine
  • Each / Lists{{#each item in items}} with add, toggle, and remove operations
  • Dynamic Attributes — Reactive inline styles, conditional classes, range inputs
  • Todo App — Multi-feature app with filtering, events, and reactive list manipulation
  • Template Inclusion{{> childTemplate data}} pattern for composable UI components

Released under the MIT License.