BlokJS – No VDOM, no build reactive UI framework (~9KB gzipped)

Name: BlokJS – No VDOM, no build reactive UI framework (~9KB gzipped)
Availability: InStock
Author: maleta

by maleta·Mar 3, 2026·1 point·0 comments

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AI Analysis

●●SolidBig BrainShip It

ES Proxy reactivity without build step, but Lit and htmx already solve unbundled UI.

Strengths

•ES Proxy auto-dependency tracking is genuinely clever—reference a property and DOM updates
•No build step, no dependencies, one 9KB script file; true zero-config prototyping
•Task board example demonstrates real routing, auth, drag-drop in single file

Weaknesses

•Crowded space: Lit, Alpine, htmx, and Preact solve unbundled reactivity with larger ecosystems
•No TypeScript, JSX, or devtools—DX is intentionally minimal, limiting appeal

Post Description

BlokJS is a ~9KB (gzipped) reactive UI framework with components, routing, and a built-in store. No build step, no dependencies, no virtual DOM - just a library in one js file.

Reactivity uses ES Proxies with automatic dependency tracking - reference a property in your view and updates happen automatically. Components are plain objects, no JSX or templates needed. Async methods automatically get reactive loading/error states.

I built this because I wanted a framework where I could prototype and ship frontend without bundlers or config - something closer to how backend development feels.

Live example (task board with auth, drag-drop, routing): https://maleta.github.io/blokjs/examples/task-board.html#/lo...

Source: https://github.com/maleta/blokjs