Sites using Stack Auth
Open-source authentication and user management platform.
Get told when a new site ships with Stack Auth.
Stackdar watches every launch we detect and sends you the ones using Stack Auth, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work53 sites
45 found by StackScope, 8 via launch platforms
- StackScope Discovery (Indie) 29
- StackScope Wider Web 16
- Product Hunt 4
- PeerPush 2
- Hacker News 1
- Other 1
Stack Auth has been detected on 53 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: mylifetides — Forecast, not fortune., 2 days ago.
It's most commonly paired with Tailwind CSS, shadcn/ui, and Next.js. By product type, the launches using it are most often Marketing (18%), AI (14%), and Developer Tools (14%).
What kind of products ship with Stack Auth
28 launches
Domain endings using Stack Auth
53 sites
- .com 30.19%
- .app 22.64%
- .ai 5.66%
- .space 5.66%
- .uk 5.66%
- .ca 3.77%
- .dev 3.77%
- .online 3.77%
- .co 1.89%
- .in 1.89%
- .io 1.89%
Share of new sites using Stack Auth
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Auth leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
Google Sign-In
|
0.70% | 35.55% |
| #2 | ▲1 |
Auth.js
|
0.57% | 28.70% |
| #3 | ▼1 |
Clerk
|
0.55% | 28.04% |
| #4 | – |
Google Identity Platform
|
0.07% | 3.71% |
| #5 | ▼1 |
Google OAuth
|
0.04% | 1.94% |
| … | ||||
| #22 | ▼2 | Stack Auth Current page | <0.01% | 0.10% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Auth tool.Among August launches it ranked #22 in Auth, down from #20 in July. All 123 in Auth →
Often used with
| Tool | Sites |
|---|---|
Tailwind CSS
|
47 |
shadcn/ui
|
46 |
Next.js
|
40 |
React
|
40 |
| HSTS | 36 |
Tools most often detected on the same sites as Stack Auth.
Recent launches we can show
37 of the 53 sites using Stack Auth are product launches we list individually. The other 16 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Brickwright / Build Console
Submora | Website Submission Automation
94iny — one address for every newsletter
AXray - Predict AI Agents Buying Intent
AI
ChatLater — Schedule WhatsApp messages
Home
Hiring & HR
HealthFlow — Practice platform for ambulatory physicians
Health
Novelmetrics
Content
GitProof — Your work, with receipts.
Developer Tools
DealerConfig — Websites built for independent car dealers
Adtrako | Meta Ads Intelligence & Real-time Attribution
Marketing
Showing the most recent 12 of 37.
The StackScope API serves all 53 sites using Stack Auth, filterable and exportable, from £15 a month.