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Open Source Chart Image API | QuickChart — 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 Technology And Computing →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
screenshotbase.com ↗	61 match shared topic	Free Screenshot API – Full Page & PDF Screenshots	en	graphics-software	robots llmsaihumans	emailphone	none
openapis.org ↗	46 match shared topic	OpenAPI Initiative – The OpenAPI Initiative provides an open source, technical community, within which industry participants may easily contribute to building a vendor-neutral, portable and an open specification for providing technical metadata for REST APIs – the “OpenAPI Specification”	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
dicebear.com ↗	46 match shared topic	DiceBear \| Open Source Avatar Library & API	en	graphics-software Gumroad	robotsllmsaihumans	emailphone	none
concrete5.org ↗	40 match shared topic	Concrete CMS is a Free and Open Source Content Management System for Teams	en	technology-and-computing Concrete5	robotsllmsaihumans	emailphone	none
cmsmadesimple.org ↗	40 match shared topic	Open Source Content Management System : : CMS Made Simple	en	technology-and-computing	robotsllmsaihumans	emailphone	none
canonical.com ↗	40 match shared topic	Trusted open source for enterprises \| Canonical	en	technology-and-computing	robotsllmsaihumans	emailphone	none
expressionengine.com ↗	40 match shared topic	ExpressionEngine — The Best Open Source CMS	en	technology-and-computing	robotsllmsaihumans	emailphone	none
freescout.net ↗	40 match shared topic	Best open source help desk: Zendesk & Help Scout alternative	en	technology-and-computing WordPress WooCommerce	robotsllmsaihumans	emailphone	none
ellislab.com ↗	40 match shared topic	ExpressionEngine — The Best Open Source CMS	en	technology-and-computing	robotsllmsaihumans	emailphone	none
formbricks.com ↗	40 match shared topic	The Open Source Experience Data Hub	en	technology-and-computing	robots llmsaihumans	emailphone	none
bola.mx ↗	40 match shared topic	\| Modern Open Source URL shortener.	Mexico en	technology-and-computing	robotsllmsaihumans	emailphone	none
igalia.com ↗	40 match shared topic	Igalia - Open Source Consulting and Development	en	technology-and-computing	robotsllmsaihumans	emailphone	none
petir.io ↗	40 match shared topic	petir.io \| Modern Open Source URL shortener.	en	technology-and-computing	robotsllmsaihumans	emailphone	none
netnewswire.com ↗	40 match shared topic	NetNewsWire: Free and Open Source RSS Reader for Mac, iPhone, and iPad	en	technology-and-computing	robotsllmsaihumans	emailphone	none
opensource.google ↗	40 match shared topic	Google Open Source	en	technology-and-computing	robotsllmsaihumans	emailphone	none
extromedia.com ↗	40 match shared topic	EXTROMEDIA.COM - Your Open Source Solutions Partner	en	technology-and-computing Contao	robotsllmsaihumans	emailphone	none
gesit.io ↗	40 match shared topic	gesit.io \| Modern Open Source URL shortener.	en	technology-and-computing	robotsllmsaihumans	emailphone	none
hicyou.com ↗	40 match shared topic	HiCyou \| Free Open Source SaaS Directory Platform	en	technology-and-computing	robots llmsaihumans	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.