BDC – Ergonomic, sub 1KiB virtual DOM library
BDC is a simple library for updating the DOM to match a javascript description. Does not require JSX or a compilation step. clobber( document.body, h("marquee", [ h("span", {"style": "font-weight: bold"}, "Hello"), ", ", h("blink", "world"), "!", ]), ); Very fast to first render, moderately slow on subsequent updates. Prompted by the post on millionjs, which compiles user code to hit the same outrageously small size target.
BDC – Ergonomic, sub 1KiB virtual DOM library launched on July 31, 2022 with 23 votes, #788 of 2,916 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 4 years on.
In plain words
BDC is a lightweight virtual DOM library under 1 kilobyte that updates the DOM based on JavaScript descriptions without requiring JSX or compilation. Developers write code using simple function calls to create and modify HTML elements. The library prioritizes extremely small file size and fast initial rendering, though subsequent updates are slower. It's designed for developers seeking minimal dependencies and straightforward DOM manipulation without build tools.
written from the facts on this page · September 2026
From the sources
Ben's DOM Clobberer. Contribute to bwhmather/bdc-js development by creating an account on GitHub.
Does a similar job
all alternatives →
1kb virtual DOM - it's fast!2021 · github.com · ▲14Optimizing compiler for React. Contribute to aidenybai/million development by creating an account on GitHub.
CalDOM: An agnostic, reactive and minimalist JavaScript UI library2021 · caldom.org · ▲107An agnostic, reactive & minimalist (3kb) JavaScript UI library with direct access to native DOM.
Bhvr, a Bun and Hono and Vite and React Starter2025 · bhvr.dev · ▲128Hey all! I've been using this stack personally for a while now and decided to automate it a bit by turning it into a template I can reuse. Hope others might find it helpful!
HMPLDec 2025 · hmpl-lang.dev · ▲200HMPL.js is a lightweight server-oriented template language for JavaScript. Fetch HTML, render it safely, and keep apps dynamic, modern, and small. Alternative to HTMX and Alpine.js.
SkateJS – a cross framework web components based library2016 · github.com · ▲144Effortless custom elements powered by modern view libraries. - skatejs/skatejs
- IMI made React with a faster Virtual DOM2022 · ▲109
Hi! I made a React compatibility library for a Virtual DOM library (https://github.com/aidenybai/million). The idea is to have much faster rendering (a compiler optimizes virtual DOM beforehand) while ensuring the same developer experience React provides. This is very, VERY early stage, so be prepared for weird bugs / plugin incompatibility / etc. If you have any suggestions, I'd be more than happy if you replied in a comment with it! You can spin up the demo here >> https://stackblitz.com/github/aidenybai/million-react-compat
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, July 2022
the whole month →
Locofy.ai▲720Hey there, I am Honey - Co-founder at Locofy. We, along with other makers, have been building Locofy.ai to help massively accelerate the builders - the designers, developers, product managers & founders, and we're excited to share it today with the HN Community. Locofy.ai simply converts designs into production-ready frontend code for web and mobile apps. It adapts to your preferred design tools, tech stack, and workflows with ease and lets you launch upto 4x faster, while letting designers design the way they want and giving high-quality responsive code that developers love. With this…
Dev tools · 2022 · locofy.ai
- PO
Life & fun · 2022 · justine.lol
Open Source realtime backend in 1 file. Contribute to pocketbase/pocketbase development by creating an account on GitHub.
Dev tools · 2022 · github.com
ruttl▲552Visual & Design Feedback Tool that helps you review design, content and report bugs on websites, applications, PDFs and images.
Dev tools · 2022 · ruttl.com
Hello, HN - I wanted to share this puzzle game I made during my vacation. I'm rather fond of the pipes puzzle where your goal is to restore a scrambled network of connections by rotating tiles. It's usually played on a grid of squares and this all started when I decided to make a programmatic solver for that kind of puzzle. Then I realized that with some minor changes the solver could generate new puzzle instances. I thought about what kind of puzzle to make and someone suggested a hexagonal grid. Adapting the generator wasn't too hard but then I had to create a way to play this variant. So…
Life & fun · 2022 · hexapipes.vercel.app
We're building Parsnip to create a "tech tree" of cooking skills that allows anyone to level up on the building blocks of cooking knowledge while tracking their progress over time. It took us a few iterations to figure out the right product; here's the story of our latest pivot: [https://parsnip.substack.com/p/a-new-hope] The goal is to create a personalized way to learn any recipe on the Internet, then use this as a springboard to help home cooks of all levels solve the problem of repeated meal planning in a 10x better way:…
Work · 2022 · parsnip.ai