Sites using OpenStax
Publisher of free, openly licensed college and high school textbooks.
Found via: StackScope Discovery (Indie) 2 · StackScope Wider Web 1
OpenStax has been detected on 3 launches since first appearing in August 2026. Most recent detection: Tutor AI — Free AI Tools & Activities for Teachers, on September 11, 2026.
It's most commonly paired with HSTS, Microsoft 365, and Vercel.
Share of new sites using OpenStax
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
Education leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
GeoGebra
|
<0.01% | 5.58% | |
| #2 |
CTFd
|
<0.01% | 5.22% | |
| #3 |
Find And Study
|
<0.01% | 4.50% | |
| #4 |
Scratch
|
<0.01% | 3.96% | |
| #5 | Udemy | <0.01% | 3.96% | |
| … | ||||
| #50 |
OpenStax
Current page
|
<0.01% | 0.54% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Education tool. All 224 in Education →
Often used with
| Tool | Sites |
|---|---|
| HSTS | 3 |
Microsoft 365
|
2 |
Vercel
|
2 |
Lucide Icons
|
2 |
YouTube
|
2 |
Tools most often detected on the same sites as OpenStax.
Recent launches we can show
2 of the 3 sites using OpenStax are product launches we list individually. The other 1 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
The StackScope API serves all 3 sites using OpenStax, filterable and exportable, from £15 a month.