CodeSkulptor3
CodeSkulptor3 is a browser-based Python interpreter designed for teaching, especially for beginners.
What CodeSkulptor3 is
CodeSkulptor3 is a browser-based Python interpreter designed for teaching, especially for beginners. Its web interface pairs a Python editor with a console that displays printed output and error messages. It implements a subset of Python 3 and adds the SimpleGui, SimpleMap, and SimplePlot graphical libraries. The tool is featured in Coursera’s “Fundamentals of Computing” course, and its maker credits Scott Rixner with building it. Users can save programs to cloud storage under a URL or download a saved program to a computer. Anyone with a saved program’s URL can access the associated file. Collaborative editing sessions are available, but they are temporary and are deleted in about a day. Documentation lists modern Google Chrome, Mozilla Firefox, and Apple Safari as supported browsers. The Python subset does not include constructs such as `try-except` and `with` statements, and external files can be loaded only over HTTPS. The maker says users are anonymous and no personal information is collected. CodeSkulptor3 is free to use.
Good
- Free to use in a browser.
- Includes an editor and output-and-error console.
- Adds SimpleGui, SimpleMap, and SimplePlot libraries.
- Programs can be saved by URL or downloaded.
- Supports temporary collaborative editing sessions.
Watch out
- Implements only a subset of Python 3.
- Does not support `try-except` or `with` statements.
- Collaborative sessions are deleted in about a day.
- Anyone with a saved URL can access its file.
Who it suits
CodeSkulptor3 suits beginners learning Python in a browser, including learners using the “Fundamentals of Computing” course. It can also suit users who want to save programs by URL or collaborate in temporary editing sessions.
Verdict
CodeSkulptor3 provides a free browser environment focused on learning Python, with graphical libraries and basic collaboration and saving options. Its limited Python subset and URL-accessible saved files are worth considering before using it for other work.
Plans and prices
From CodeSkulptor3's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Freely available for all to use |
The facts
Each one read from CodeSkulptor3's own pages, with the date it was checked.
What it does
- Analytics
- The site uses Plausible Analytics for aggregated usage trends, which the maker says collects no personal data and uses no cookies.checked 7 Oct 2026
- Collaboration
- Users can create or join collaborative editing sessions, which are temporary and are deleted in about a day.checked 7 Oct 2026
- Course use
- It is featured in the Coursera course “Fundamentals of Computing.”checked 7 Oct 2026
- Editor and console
- The browser interface includes a Python editor and a console that displays printed output and error messages.checked 7 Oct 2026
- HTTPS requirement
- Programs can load external files only over HTTPS; resources hosted by CodeSkulptor support HTTPS.checked 7 Oct 2026
- Integrations and services
- The maker lists Google Cloud Storage, Firebase Realtime Database, and Google Maps Platform among the services CodeSkulptor3 uses.checked 7 Oct 2026
- Privacy
- The maker says CodeSkulptor3 does not collect personal information and users are anonymous.checked 7 Oct 2026
- Purpose
- CodeSkulptor3 is a browser based Python interpreter created for teaching Python, especially to beginners.checked 7 Oct 2026
- Python limitations
- The documented subset does not support constructs including `try-except` statements and `with` statements.checked 7 Oct 2026
- Python support
- It implements a subset of Python 3 and adds the SimpleGui, SimpleMap, and SimplePlot graphical libraries.checked 7 Oct 2026
- Save and download
- Users can save programs to cloud storage under a URL and download a saved program to their computer.checked 7 Oct 2026
- Saved file use
- Saved files are stored indefinitely, and the maker says they are used to provide the service and for anonymous educational research.checked 7 Oct 2026
- URL access
- Anyone with a saved CodeSkulptor3 URL can access the file associated with that URL.checked 7 Oct 2026
Where it runs
- Browser support
- The documentation lists modern Google Chrome, Mozilla Firefox, and Apple Safari as supported browsers.checked 7 Oct 2026
The company
- Founded
- 2012checked 28 Sep 2026
- Maker credit
- The maker credits Scott Rixner with building CodeSkulptor3.checked 7 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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