Sites using SmtpJS
Client-side JavaScript library for sending email via SMTP from the browser.
Found via: Product Hunt 4 · StackScope Wider Web 3
Figures on this page reflect launches found via All sources only. The "Found via" counts above always show every source. Reset
SmtpJS has been detected on 4 launches since first appearing in April 2026. Most recent detection: Sunlit Urbana Panchkula, 4 days ago.
It's most commonly paired with Google Search Console, Google Analytics, and nginx.
Share of new launches using SmtpJS
Each dot is one launch day. Line is the 7-day rolling average.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.
Transactional Email leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
Resend
|
18.95% | 75.32% | |
| #2 |
Amazon SES
|
3.33% | 13.23% | |
| #3 |
SendGrid
|
2.32% | 9.24% | |
| #4 |
Mailgun
|
1.01% | 4.00% | |
| #5 |
Firebase Trigger Email
|
0.87% | 3.44% | |
| … | ||||
| #37 | SmtpJS Current page | <0.01% | 0.02% | |
Percentages show adoption among launches found via All sources: the share of all such launches, and of those using any Transactional Email tool. All 66 in Transactional Email →
Often used with
| Tool | Launches |
|---|---|
Google Search Console
|
4 |
Google Analytics
|
3 |
nginx
|
3 |
Google Tag Manager
|
3 |
DigitalOcean DNS
|
2 |
Tools most often detected on the same launches as SmtpJS.
