Pyzo

Free#8 of 25 in Python IDEs

Pyzo: A focused, free Python IDE for interactive work, debugging, and scientific computing. Ranked #8 of 25 in Python IDEs by our editors (7.7/10); pricing: Free plan; best for free interactive Python development.

7.7/10Editor score

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At a glance

Editor score
7.7 / 10
Pricing
Free plan
Best for
Free interactive Python development
Free plan
Yes
Paid from
Free
Integrated debugger
Yes
Facts checked
20 Sep 2026

Where it wins
- Interactive shells, cell execution, and workspace inspection
- Debugger with breakpoints, stepping, and post-mortem modes
- Runs on Windows, macOS, and Linux with pip and conda support
Where it doesn't
- No documented integrated test runner
- No documented profiler
- No documented remote-development workflow

Our verdict on Pyzo

Pyzo is a free, open-source Python IDE built around interactive programming and scientific computing. It combines an editor with Python shells running in subprocesses, source-aware introspection, debugging, source navigation, workspace inspection, and package management. Its audience includes students, hobbyists, scientists, engineers, universities, startups, and other users who want a lightweight Python development environment. Pyzo runs on Windows, macOS, and Linux and can work with installed Python interpreters, including Conda environments.

Its standout strength is the interactive workflow. Cell-based execution, function signatures, interactive documentation, autocomplete, and workspace inspection support iterative exploration without leaving the development environment. The debugger adds breakpoints and next, step, continue, and post-mortem modes. Pyzo also fits projects using Python, Conda, pip, Qt, PySide6, PySide2, PyQt6, or PyQt5, while package management is handled through pip or conda commands. This makes it a practical choice for users who value direct experimentation and visible program state.

Pyzo is less suitable for teams that require a broader development workflow. The published product documentation covers debugging and introspection, but not an integrated test runner, profiler, or remote-development workflow. Those omissions matter for developers who need built-in testing, performance analysis, or development against remote environments. Choose Pyzo when free, open-source, interactive Python development is the priority; choose another Python IDE when testing, profiling, or remote development is central to the workflow.

Questions about Pyzo

What does Pyzo run on? Windows, macOS and Linux. It runs as a desktop app.

What does Pyzo integrate with? 8 integrations, including Python, Conda, pip, Qt and PySide6.

Who is Pyzo built for? Solo users, small businesses, mid-market companies and enterprises (our editorial estimate).

Your product? Our editors can test Pyzo in depth and publish a review, labelled as paid · from $149/mo →

Pyzo pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on pyzo.org

Pyzo fact sheet

Free plan	Yes
Paid from	Free
Integrated debugger	Yes
Integrated test runner	Not verified
Code intelligence	Advanced
Remote development	Not verified
Integrated profiler	Not verified
Supported platforms	windows, macos, linux
Python environment tools	Yes
Deployment	Desktop
Platforms	Windows, macOS, Linux
Support	Community
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations	8 integrations: Python, Conda, pip, Qt, PySide6, PySide2 …
Pricing	Free plan
Website	pyzo.org
Facts checked	20 Sep 2026

Pyzo integrations

Pyzo lists 8 integrations on its own site.

Python
Conda
pip
Qt
PySide6
PySide2
PyQt6
PyQt5

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Pyzo vs the competition

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Pyzo for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Pyzo is listed in our Python IDEs directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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Last updated 14 Nov 2026 · How we research and update