Open-source HTML projects categorized as HTML

Top 23 HTML HTML Projects

  • tabler

    Tabler is free and open-source HTML Dashboard UI Kit built on Bootstrap

    Project mention: Sqlx: I'm sorry I forked you | | 2023-08-13

    This is a bug, PR welcome !

  • responsive-html-email-template

    A free simple responsive HTML email template

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  • Milligram

    A minimalist CSS framework.

    Project mention: Concrete.css | | 2024-02-08

    I had been using similar projects such as skeleton[0] and milligram[1] for small experiments such as repfl[2], and wanted to create something similar that I would find aesthetically pleasing and that would fit in as little space as possible. The current version of concrete.css is less than 1kb minzipped!




  • startbootstrap-sb-admin-2

    A free, open source, Bootstrap admin theme created by Start Bootstrap

  • to-markdown

    🛏 An HTML to Markdown converter written in JavaScript

    Project mention: Show HN: I made a tool to clean and convert any webpage to Markdown | | 2024-04-14

    With some configuration you can get most of the way there.

  • WHATWG HTML Standard

    HTML Standard

    Project mention: Here are the 10 projects I am contributing to over the next 6 months. Share yours | | 2024-04-13


  • GoJS, a JavaScript Library for HTML Diagrams

    JavaScript diagramming library for interactive flowcharts, org charts, design tools, planning tools, visual languages.

    Project mention: Burning money on paid ads for a dev tool – what we've learned | | 2023-09-29

    Have spent six figures yearly on ads, mostly for reach for the developer-focused diagram library GoJS (

    > Each experiment will need ~$500 and 2 weeks

    I would add a zero if you want serious data. I would also double the timescale. $5,000 over 4 weeks

    I second the uselessness of Google Display, it might look like conversions numbers are good but they are 100% too good to be true. As soon as you look into them you find the sources are things like "ad from HappyFunBabyTime Android app". You have to ruthlessly prune daily for months to get anything real, and even then I'm skeptical of value. For a developer tool with very strict conversion metrics!

    But I disagree on Google Search:

    > Good for conversion, bad for awareness.

    Before we were popular it was excellent for awareness. Post popularity its much more arguable.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  • url-to-pdf-api

    Web page PDF/PNG rendering done right. Self-hosted service for rendering receipts, invoices, or any content.

  • Charts.css

    Open source CSS framework for data visualization.

  • win12

    Windows 12 网页版,在线体验 点击下面的链接在线体验

    Project mention: Windows 12 Online | | 2023-09-08
  • staticrypt

    Password protect a static HTML page, decrypted in-browser in JS with no dependency. No server logic needed.

    Project mention: Yet another encrypt tool for Hugo | /r/gohugo | 2023-06-27

    I am sure there are other use cases, that why there are some tools used for, such as the, this tool/feature was also requested by users.

  • intercooler-js

    Making AJAX as easy as anchor tags

    Project mention: Htmx and the Rule of Least Power | | 2024-04-12

    An early version of Htmx was in fact based on jQuery (

  • wpt

    Test suites for Web platform specs — including WHATWG, W3C, and others

    Project mention: Show HN: Dropflow, a CSS layout engine for node or <canvas> | | 2024-03-21

    To reply mostly with my WPT Core Team hat off, mostly summarising the history of how we've ended up here:

    A build script used by significant swaths of the test suite is almost certainly out; it turns out people like being able to edit the tests they're actually running. (We _do_ have some build scripts — but they're mostly just mechanically generating lots of similar tests.

    A lot of the goal of WPT (and the HTML Test Suite, which it effectively grew out of) has been to have a test suite that browsers are actually running in CI: historically, most standards test suites haven't been particularly amenable to automation (often a lot of, or exclusively, manual tests, little concern for flakiness, etc.), and with a lot of policy choices that effectively made browser vendors choose to write tests for themselves and not add new tests to the shared test suite: if you make it notably harder to write tests for the shared test suite, most engineers at a given vendor are simply going to not bother.

    As such, there's a lot of hesitancy towards anything that regresses the developer experience for browser engineers (and realistically, browser engineers, by virtue of sheer number, are the ones who are writing the most tests for web technologies).

    That said, there are probably ways we could make things better: a decent number of tests for things like Grid use check-layout-th.js (e.g.,

    One could definitely imagine a world in which these are a test type of their own, and the test logic (in check-layout-th.js) can be rewritten in a custom test harness to do the same comparisons in an implementation without any JS support.

    The other challenge for things like Taffy only targeting flexbox and grid is we're unlikely to add any easy way to distinguish tests which are testing interactions with other layout features (`position: absolute` comes to mind!).

    My suggestion would probably be to start with an issue at, describing the rough constraints, and potentially with one or two possible solutions.

  • supercookie

    ⚠️ Browser fingerprinting via favicon!

    Project mention: Supercookie | | 2023-11-01
  • simple.css

    Simple.css is a CSS template that allows you to make a good looking website really quickly.

    Project mention: I hate CSS: how can I build UIs? | | 2023-11-05

    Agreed, find a class-less framework to start, so that you focus on just the HTML, semantic structure first. Here's a couple of lists of such frameworks:

    Personally, I like simple.css (

  • vcard-personal-portfolio

    vCard is a fully responsive personal portfolio website, responsive for all devices.

  • pnotify

    Beautiful JavaScript notifications with Web Notifications support.

  • pdf2htmlEX

    Convert PDF to HTML without losing text or format. (by pdf2htmlEX)

  • tagify

    🔖 lightweight, efficient Tags input component in Vanilla JS / React / Angular / Vue

  • bulma-templates

    free flexbox templates built with the bulma css framework

    Project mention: Bulma : Free Templates | /r/bulmacss | 2023-07-04

    If you're a beginner who wants to give it a go with bulma, or just an enthusiast who wishes to slap some content into existing template and have a web page, or maybe build some theme upon existing layout, take a look at Bulma Templates repo.

  • modular-admin-html

    ModularAdmin - Free Dashboard Theme Built On Bootstrap 4 | HTML Version

  • front-end-Interview-Questions

    Help the front End community to rock interview

  • latex-css

    LaTeX.css is a CSS library that makes your website look like a LaTeX document

  • SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-04-14.

HTML HTML related posts


What are some of the best open-source HTML projects in HTML? This list will help you:

Project Stars
1 tabler 36,909
2 responsive-html-email-template 12,959
3 Milligram 10,159
4 startbootstrap-sb-admin-2 9,665
5 to-markdown 7,815
6 WHATWG HTML Standard 7,666
7 GoJS, a JavaScript Library for HTML Diagrams 7,404
8 url-to-pdf-api 6,969
9 Charts.css 6,100
10 win12 6,100
11 staticrypt 5,782
12 intercooler-js 4,727
13 wpt 4,628
14 supercookie 4,423
15 simple.css 3,911
16 vcard-personal-portfolio 3,736
17 pnotify 3,649
18 pdf2htmlEX 3,361
19 tagify 3,253
20 bulma-templates 3,230
21 modular-admin-html 2,923
22 front-end-Interview-Questions 2,782
23 latex-css 2,686
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives