OnlinePy
The facts below are what the maker publishes about OnlinePy, checked and dated. Our editors have not written about it yet.
Plans and prices
From OnlinePy's own pricing page, checked 23 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Browser-based Python IDE · Local WebAssembly execution · No account required · No ads |
| OnlinePy | Free | Free · no ads · no login |
The facts
Each one read from OnlinePy's own pages, with the date it was checked.
What it does
- Audience
- The homepage lists testing snippets, learning Python, data analysis, coding interview preparation, and teaching as use cases.checked 11 Oct 2026
- Code history
- The homepage describes automatic logging of runs and one-click rollback to an earlier point.checked 11 Oct 2026
- Deployment options
- nonechecked 23 Sep 2026
- Embedding
- OnlinePy can be embedded using a floating widget, JavaScript custom element, or iframe, with configurable visible features.checked 11 Oct 2026
- Embedding limitation
- In an iframe without cross-origin isolation, code can still run, but interactive input() and Stop are limited.checked 11 Oct 2026
- Full-stack runtime
- Nochecked 23 Sep 2026
- Image export
- Users can export code with syntax highlighting and terminal output as an image.checked 11 Oct 2026
- Libraries
- It supports NumPy, Pandas, Matplotlib, SciPy, and scikit-learn through Pyodide.checked 11 Oct 2026
- Local execution
- Code executes locally in the browser using WebAssembly, and the maker says code stays on the device unless the user uses Share.checked 11 Oct 2026
- Memory
- The site advertises up to approximately 4GB of WebAssembly heap.checked 11 Oct 2026
- Mobile support
- The maker says OnlinePy works in modern mobile browsers and recommends desktop or laptop for the best experience.checked 11 Oct 2026
- Offline use
- The About page says that after the initial Pyodide runtime download, subsequent visits can work offline from cache.checked 11 Oct 2026
- Package installation
- The maker says most pure Python packages on PyPI can be installed at runtime.checked 11 Oct 2026
- Private projects
- Yeschecked 23 Sep 2026
- Purpose
- OnlinePy is a Python IDE that runs code in the browser without installation or an account.checked 11 Oct 2026
- Sharing controls
- link_accesschecked 23 Sep 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
The company
- Maker details
- The About page identifies the product as OnlinePy but does not state a maker name, headquarters, or founding date.checked 11 Oct 2026
Where it runs
- Platform
- OnlinePy is described as browser-based; no native desktop or mobile app is identified on the pages opened.checked 11 Oct 2026
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