Convex on new websites

1. Convex appeared on about 410 new sites in the last 30 days.^[1]
2. It is the third most common backend-as-a-service platform on new sites. Firebase appears on about 40 times as many.
3. Eight in ten new Convex sites also use React.

The line is the 7-day average share of new sites that use Convex, day by day for the last 90 days and weekly before that (left of the dashed line). The shaded areas were measured against a different set of sites, so the line can step there without Convex itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Firebase	1.1%	54.2%
2	–	Supabase	0.9%	43.6%
3	–	Convex	<0.1%	1.2%
4	–	Tencent CloudBase	<0.1%	0.4%
5	–	Appwrite	<0.1%	0.3%

All-time shares across the new sites we track: of all of them, and of the sites using any BaaS tool. All 38 in BaaS

Tool	Sites with both	vs all new sites	Bar
PostHog	540	35x
Vercel DNS	505	9.2x
Next.js	1,127	5.4x
Lucide Icons	841	3.4x
React	1,270	3.1x

Tools that turn up far more often on Convex sites than on new sites in general, and how many times as common each one is there.

1,115 of the 1,518 sites using Convex are product launches we list individually. The other 403 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts.

Site	Found	Also detected
Nyayo Trails - Tour Management Platform nyayotrails.com · Productivity · South Africa	Oct 19
LeadChâteau | Real Insurance Prospects. Smarter Lead Management. leadchateau.ai · Marketing	Oct 19
soniroll: every practice tool, in one place soniroll.com	Oct 19
VUBAOANH Tiếng Anh Y khoa vubaoanh.com · Vietnam	Oct 19
Dustjacket — A home for your reading life dustjacket.org · Productivity	Oct 18
Botlify: docs to a Grok bot with an inbox botlify.sh · AI	Oct 18
Kay Growth - Customer intelligence for premium Shopify brands kaygrowth.com	Oct 18
ClimbOS — your AI growth team for small businesses climbos.app · Marketing	Oct 18
Your First AI Agent — Your First AI Agent firstagent.pro · AI	Oct 18
Boola Board boolaboard.app · Social	Oct 18
BusinessMode — Your next business move starts here. getbusinessmode.com	Oct 17
OnScreenBot · Make every employee fluent in your product guidedrole.com · Education	Oct 17

Showing the most recent 12 of 1,115.

The StackScope API serves all 1,518 sites using Convex, filterable and exportable, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well, so the share is measured against a much larger set of sites. For one continuous measure, view launch platforms only.
3. Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.
4. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
5. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.