Sites using Fern
Developer documentation generator and SDK builder for OpenAPI/REST APIs.
4 sites
2 found by StackScope, 2 via launch platforms
- StackScope Discovery (Indie) 1
- StackScope Wider Web 1
- Product Hunt 1
- Other 1
Fern has been detected on 4 launches since first appearing in April 2026. Most recent detection: Turn any task into the right API calls. | Orbit by Postman, on August 22, 2026.
It's most commonly paired with Vercel, Next.js, and PostHog.
Share of new sites using Fern
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.
Documentation leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
Starlight
|
0.01% | 63.78% | |
| #2 |
Mintlify
|
<0.01% | 15.02% | |
| #3 | mdBook | <0.01% | 4.42% | |
| #4 |
Redocly
|
<0.01% | 2.65% | |
| #5 |
MDN Web Docs
|
<0.01% | 2.30% | |
| … | ||||
| #11 | Fern Current page | <0.01% | 0.71% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Documentation tool. All 27 in Documentation →
Often used with
| Tool | Launches |
|---|---|
Vercel
|
2 |
Next.js
|
2 |
PostHog
|
2 |
Google Tag Manager
|
2 |
React
|
2 |
Tools most often detected on the same launches as Fern.
Recent launches we can show
3 of the 4 sites using Fern 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 The other 1 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
Turn any task into the right API calls. | Orbit by Postman
Developer Tools
LoreOS | LoreOS
AI
OpenRouter Model Fusion
Crypto
The StackScope API serves all 4 sites using Fern, filterable and exportable, from £15 a month.