Why SynergyJS?
Modern frontend toolchains routinely ship 40KB to 120KB of runtime JavaScript before rendering a single interactive component. SynergyJS takes the opposite path: it builds directly on top of browser-native Custom Elements v1, standard DOM mutation primitives, and ES6 Proxies to deliver ergonomic reactivity in roughly 4KB minified and gzipped.
Native HTML Templates
Author standard markup using <template> tags with Mustache-style interpolations and attribute bindings—no JSX compiler required.
Fine-Grained Proxy State
Mutate properties directly on your component view-model. SynergyJS tracks exact DOM text and attribute nodes and updates only what changed.
Light & Shadow DOM
Render into encapsulated Shadow DOM or stay in the Light DOM for effortless global CSS styling and predictable search crawler indexing.
Declarative Markup Meet Native Web Standards
When you register a component with define(tagName, factory, options), SynergyJS walks your template once, records surgical node pointers for dynamic expressions like {{ title }} or each="item in items", and binds DOM event listeners directly to methods on the returned state object.
<template id="todo-list">
<form onsubmit="addTodo">
<input name="draft" value="{{ draft }}" placeholder="Add task..." />
<button type="submit">Add ({{ items.length }})</button>
</form>
<ul>
<template each="todo in items">
<li completed="{{ todo.done }}">{{ todo.text }}</li>
</template>
</ul>
</template>Production Tooling, SSR Verification & QA Workflows
Because Web Components often power documentation portals, marketing landing pages, and SaaS authentication flows, shipping them to production requires validating both search engine crawlability and end-to-end form behavior:
- Search Crawlability & Hydration Audits: Client-rendered Custom Elements can occasionally suffer from deferred rendering queues in search bots. Engineering teams deploying prerendered SynergyJS components use indexaction.com to audit bulk URL indexation status and confirm that Light DOM and hydrated templates are properly indexed across large documentation trees.
- Automated Form & OTP Verification: When testing custom reactive forms (see Forms & Event Bindings) such as passwordless magic-link signups or multi-step verification widgets, developers pair Playwright with MailBots to provision disposable programmable inboxes and assert OTP payloads in milliseconds.
Explore the Documentation
Ready to build with SynergyJS? Start with the Installation & Getting Started guide, learn how Declarative Templates & Repeated Blocks work under the hood, or dive straight into SSR Prerendering & Search Hydration.