As of October 27, 2026, EmailJS is used by 12,956 websites in the TechLeads index: 0.11% of all Email detections, the 31st most-used of 111 Email technologies.
12,956
websites using EmailJS
0.11%
share of Email
#31
of 111 in Email
EmailJS vs competitors in Email
Websites using each technology in the TechLeads index, and its share of all Email detections.
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.
EmailJS usage over time
In HTTP Archive's monthly crawl of public websites, EmailJS was detected on 7,589 pages in September 2026, up 40.7% from a year earlier. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other Email technologies in HTTP Archive: Google Workspace 7,328,416, Microsoft 365 6,889,878, MailChimp 1,572,197, Sendgrid 1,280,135, Amazon SES 1,270,273.
TechLeads scans public websites and detects EmailJS from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is EmailJS's website count divided by the website counts of all Email technologies we track; a site using two Email tools counts for both. Counts were last refreshed on October 27, 2026 and update daily.
FAQ
Q01What is EmailJS's market share?
EmailJS accounts for 0.11% of Email detections in the TechLeads index (12,956 websites), which makes it the 31st most-used of 111 Email technologies we track.
Q02How many companies use EmailJS?
TechLeads currently detects EmailJS on 12,956 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 7,589 pages in September 2026.
Q03Who are EmailJS's biggest competitors?
By number of websites, the largest Email technologies besides EmailJS are Google Workspace (3,508,565), Microsoft 365 (2,901,671), Hostinger Mail (1,016,901), IONOS Mail (700,535), Mailgun (682,873).
Q04Which companies use EmailJS?
Websites using EmailJS include ui8.net, codeanywhere.com, aitoolset.app, cedenoarquitecturametalica.com, advokatadeladurakovic.com, agenticsaas.com. The full list of 12,956 websites can be exported as a CSV for $29.
