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Htmlheaven alternatives & similar sites

HTML Heaven — open-source home for HTML5 apps — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Web Development →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
greenpropertygrants.co.uk ↗	67 match 1 shared topics	OpenNewsletter 2.5 : A Free & Open-Source PHP Newsletter	United Kingdom en	web-development	robotsllmsaihumans	emailphone	none
mortgageswitcheroo.co.uk ↗	67 match 1 shared topics	OpenNewsletter 2.5 : A Free & Open-Source PHP Newsletter	United Kingdom en	web-development	robotsllmsaihumans	emailphone	none
ademti-software.co.uk ↗	67 match 1 shared topics	Ademti Software : Open-source software development agency	United Kingdom en	web-development Statamic WooCommerce	robotsllmsaihumans	emailphone	none
htmlbin.dev ↗	66 match 1 shared topics	htmlbin — agent-first HTML hosting	en	web-development	robots llmsaihumans	emailphone	partial · 8
faecms.com ↗	66 match 1 shared topics	Fae CMS \| A Flexible, Open-Source, Ruby On Rails CMS Gem	en	web-development	robotsllmsaihumans	emailphone	none
html2.app ↗	66 match 1 shared topics	html2.app — Write HTML. Ship Apps.	en	web-development	robotsllmsaihumans	emailphone	partial · 8
oloma.dev ↗	65 match 1 shared topics	Oloma - Open Source Software Community	en	web-development	robotsllmsaihumans	emailphone	none
html5.org ↗	65 match 1 shared topics	html5.org — HTML revisited	en	web-development	robotsllmsaihumans	emailphone	none
httplint.com ↗	65 match 1 shared topics	REDbot: Lint for your HTTP Resources	en	web-development	robotsllmsaihumans	emailphone	none
html5video-tag.com ↗	65 match 1 shared topics	Html5 Video Tag \| HTML5 Video Tag	en	web-development	robotsllmsaihumans	emailphone	none
2bcwebdev.com ↗	65 match 1 shared topics	Anil Nautiyal: Freelance Open Source Consultant	en	web-development	robotsllmsaihumans	emailphone	none
ssofb.com ↗	65 match 1 shared topics	SSOFB: Aberdeen's leading Open Source Web Developers	en	web-development Joomla VirtueMart	robotsllmsaihumans	emailphone	none
visualwebgui.com ↗	65 match 1 shared topics	.NET HTML5 Applications & Migration to Web/Cloud/Mobile	en	web-development DotNetNuke/DNN	robotsllmsaihumans	emailphone	none
anwriter.com ↗	64 match 1 shared topics	anWriter text editor for HTML CSS JavaScript PHP SQL	en	web-development	robotsllmsaihumans	emailphone	none
helicoz.com ↗	64 match 1 shared topics	Home - GlobalSourceUS	en	web-development	robotsllmsaihumans	email phone	none
detectmobilebrowsers.com ↗	64 match 1 shared topics	Detect Mobile Browsers - Open source mobile phone detection	en	web-development	robotsllmsaihumans	emailphone	none
eagleminds.net ↗	64 match 1 shared topics	Home — Eagleminds	en	web-development WordPress	robotsllmsaihumans	emailphone	none
4fnext.com ↗	64 match 1 shared topics	4fnext — Software for the next era	en	web-development	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.