Online Python
Online Python is a free, browser-based IDE for writing, running, testing, and learning Python.
What Online Python is
Online Python is a free, browser-based IDE for writing, running, testing, and learning Python. It supports Python 3.12, so users can execute code in a browser without configuring a local Python environment. The ACE-powered editor offers dark and light themes, additional themes, undo and redo, and an expandable output terminal. An integrated debugger and test runner are available, along with basic code intelligence. Visualize records a program run and lets users step through it; the site also says it supports modules including Pandas and NumPy. Users can open local scripts, download code and output, and save projects as ZIP files. Code saved online can be shared through a link with a selected expiry period. The site includes 31 free interactive lessons with runnable browser examples and describes the tool as useful in the early stages of learning Python. Online Python says execution code sent to its server is cleared after the run, while shared code remains until its expiry. Anyone with a shared-code link can view it, so the privacy policy advises against including sensitive information.
Good
- Runs Python 3.12 in a browser.
- Includes a debugger, test runner, and run visualization.
- Offers 31 free interactive lessons.
- Local scripts can be opened and projects saved as ZIP files.
Watch out
- Shared code can be viewed by anyone with its link.
- Code intelligence is basic.
- Shared code remains until its selected expiry.
Who it suits
Online Python suits people learning Python or needing to run and test scripts in a browser without setting up a local environment. Its lessons are aimed particularly at people in the early stages of learning.
Verdict
Online Python offers a free way to write and run Python in a browser, with lessons and debugging tools. Avoid putting sensitive information in shared code because anyone with its link can view it.
Plans and prices
From Online Python's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Online Python IDE | Free | Free to use · Python 3.12 · web-based IDE |
The facts
Each one read from Online Python's own pages, with the date it was checked.
What it does
- Code editor
- The IDE is powered by the ACE code editor.checked 7 Oct 2026
- Editor features
- The editor offers dark and light themes, additional editor themes, undo and redo, and an expandable output terminal.checked 7 Oct 2026
- Execution data
- The IDE says code sent to its server for execution is cleared after completion, while shared code remains until its selected expiry period.checked 7 Oct 2026
- Integration
- The privacy policy says the service offers optional Google OAuth sign-in and requests basic profile information for authentication.checked 7 Oct 2026
- Intended users
- The About page describes the tool as useful for people in the initial phase of learning Python.checked 7 Oct 2026
- Lessons
- The home page offers 31 free interactive Python lessons with examples that run in the browser.checked 7 Oct 2026
- Libraries
- The site says it supports advanced Python modules including Pandas and NumPy.checked 7 Oct 2026
- Local files
- Users can open a local script and download code and output; projects can also be saved as a ZIP file.checked 7 Oct 2026
- Privacy
- The privacy policy says shared code can be viewed by anyone with its link and advises against sharing sensitive data.checked 7 Oct 2026
- Purpose
- Online Python is a web-based IDE for learning, building, running, and testing Python scripts.checked 7 Oct 2026
- Python version
- The IDE supports Python 3.12.checked 7 Oct 2026
- Run code
- Users can run Python code in a browser without setting up a local Python environment.checked 7 Oct 2026
- Save and share
- Users can save code online and share it through a link with a selected expiry period.checked 7 Oct 2026
- Security
- The privacy policy states that data is encrypted in transit and at rest and mentions secure cloud infrastructure, regular security audits, and access controls.checked 7 Oct 2026
- Support
- The site directs users with bugs, questions, or suggestions to contact it by email, but the contact address is not shown in the page text.checked 7 Oct 2026
- Visualization
- The IDE can record a program run and step through it with its Visualize feature.checked 7 Oct 2026
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