How many companies use NextAuth.js?

TechLeads currently detects NextAuth.js on 38,666 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 84,936 pages in September 2026.

Who are NextAuth.js's biggest competitors?

By number of websites, the largest Authentication technologies besides NextAuth.js are Facebook Login (1,045,489), Google Sign-in (395,293), Linkedin Sign-in (55,143), Apple Sign-in (30,173), Okta (10,720).

Which companies use NextAuth.js?

Websites using NextAuth.js include otomoto.pl, cal.com, nrf.com, aeon.co, marksandspencer.com, madeiramadeira.com.br. The full list of 38,666 websites can be exported as a CSV for $29.

NextAuth.js market share and customers

As of October 9, 2026, NextAuth.js is used by 38,666 websites in the TechLeads index: 2.4% of all Authentication detections, the 4th most-used of 29 Authentication technologies.

38,666

websites using NextAuth.js

2.4%

share of Authentication

of 29 in Authentication

Cite this data

Quoting these numbers? Credit TechLeads with a link to this page.

Citation

TechLeads. "NextAuth.js Customers and Market Share." Data as of October 9, 2026. https://techleads.fyi/technology/nextauth-js/market-share

HTML link

<a href="https://techleads.fyi/technology/nextauth-js/market-share">NextAuth.js market share (TechLeads data)</a>

NextAuth.js vs competitors in Authentication

Websites using each technology in the TechLeads index, and its share of all Authentication detections.

#	Technology	Websites	Share
1	Facebook Login	1,045,489	64.6%
2	Google Sign-in	395,293	24.4%
3	Linkedin Sign-in	55,143	3.4%
4	NextAuth.js	38,666	2.4%
5	Apple Sign-in	30,173	1.9%
6	Okta	10,720	0.66%
7	Clerk	10,627

NextAuth.js usage over time

In HTTP Archive's monthly crawl of public websites, NextAuth.js was detected on 84,936 pages in September 2026, up 36.2% from a year earlier. Among the 1,000 most-visited sites, it appeared on 3. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other Authentication technologies in HTTP Archive: Facebook Login 1,887,184, Google Sign-in 545,296, Apple Sign-in 51,541, Linkedin Sign-in 44,214, Clerk 28,894.

Companies using NextAuth.js

otomoto.pl · otomoto.pl
cal.com
nrf.com · Nexus
aeon.co · Aeon Media
marksandspencer.com · Marks & Spencer
madeiramadeira.com.br
donedeal.ie
doodle.com
interestingengineering.com
native-land.ca
civitai.com
noissue.co

See all 38,666 websites using NextAuth.js or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects NextAuth.js from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is NextAuth.js's website count divided by the website counts of all Authentication technologies we track; a site using two Authentication tools counts for both. Counts were last refreshed on October 9, 2026 and update daily.

FAQ

NextAuth.js accounts for 2.4% of Authentication detections in the TechLeads index (38,666 websites), which makes it the 4th most-used of 29 Authentication technologies we track.