Sites built with Pyodide
CPython interpreter compiled to WebAssembly, allowing Python code to run directly in the browser.
Get told when a new site ships with Pyodide.
Stackdar watches every launch we detect and sends you the ones using Pyodide, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work34 sites
32 found by StackScope, 2 via launch platforms
- StackScope Wider Web 18
- StackScope Discovery (Indie) 14
- Product Hunt 2
Pyodide has been detected on 34 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Fantasy Football Draft Tracker, today.
It's most commonly paired with jsDelivr, Cloudflare, and Cloudflare DNS. By product type, the launches using it are most often Developer Tools (38%), Education (19%), and Productivity (19%).
What kind of products ship with Pyodide
16 launches
Domain endings using Pyodide
33 sites
- .com 42.42%
- .dev 12.12%
- .org 9.09%
- .in 6.06%
- .io 6.06%
- .net 6.06%
- .app 3.03%
Share of new sites using Pyodide
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.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
jQuery
|
14.33% | 34.42% |
| #2 | – |
React Router
|
6.78% | 16.27% |
| #3 | – |
Motion
|
6.68% | 16.04% |
| #4 | – |
TanStack Router
|
4.25% | 10.21% |
| #5 | – |
Swiper
|
3.62% | 8.70% |
| … | ||||
| #400 | ▼74 | Pyodide Current page | <0.01% | <0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #417 in Javascript Library, down from #343 in July. All 1097 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
jsDelivr
|
25 |
Cloudflare
|
20 |
Cloudflare DNS
|
16 |
| HTTP/3 | 15 |
GitHub Pages
|
11 |
Tools most often detected on the same sites as Pyodide.
Recent launches we can show
16 of the 34 sites using Pyodide are product launches we list individually. The other 18 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
zengl web playground — live WebGL2/OpenGL graphics examples in Python
Developer Tools
PaiPai Python — Free Python Coding for Kids (Ages 7-11) | Learn to Code Online
Education
AlgoVizor - Algorithm & Data Structure Visualizer
Junoview — figure-first Jupyter notebook viewer and presentation builder
Productivity
Redd Munro — find out how much of your dashboard is measuring the same thing
Developer Tools
aismell — detector de IA + verificador de bibliografía
ChatPyMOL
solvesmath
Education
Sumobot Royale — Aprende a programar en Python jugando
Developer Tools
Iron & Ash — a Song of Choices
Games
Junoview — figure-first Jupyter notebook viewer and presentation builder
Productivity
Showing the most recent 12 of 16.
The StackScope API serves all 34 sites using Pyodide, filterable and exportable, from £15 a month.