NINJA-IDE vs Python Online

NINJA-IDE is a free integrated development environment for creating applications, with tools for managing Python projects. The editor provides syntax highlighting, code completion, and help with imports and navigation. A code locator gives access to project files, functions, and classes, and documents can highlight static and PEP 8 errors. Users can manage files within the IDE, run a Python project or open file with one click, and render HTML files inside the application. Plugins can extend the editor and integrate functionality. The download page lists v2.4 installers for Windows 10/11 and Linux distributions; its macOS entry says the app is unavailable there and offers source code only. Listed requirements are Python 2.7 and PyQt 4.7 or later. The project describes the software as GPLv3+ and lists a mailing list and GitHub issues for questions and bug reports. The website says it is no longer run by the official authors.

Python Online is a browser-based, container-backed Python IDE for writing, running, and hosting applications. Code executes in isolated Linux containers, while the Monaco editor provides IntelliSense, multi-cursor editing, flexible pane layouts, and Ruff linting. Users can search PyPI and install packages in isolated project environments. Hosted Flask, FastAPI, Django, and Streamlit applications receive pythononline.app subdomains with SSL. Registered accounts can schedule one daily headless task limited to 60 seconds. A persistent Python REPL supports interactive work, and matplotlib or plotly plots can appear in the output console. The free registered account costs nothing and includes up to three projects, 512 MB cloud storage, one hibernating web app, one daily task, and proxy-based outbound access. Guest projects remain in browser memory and lack internet, hosting, and scheduling. Projects export as ZIP archives.