VisuAlgo
Focus: algorithms, data structures and computer science. Shares visualisation with Python Tutor. Rated 4.7 (Python Tutor: 4.6).
Web AppFreeWeb
4.7Visit
Web App
Python Tutor
Watch your code run line by line with a free visual debugger.
Rating
4.6 / 5
Pricing
Free
Difficulty
Beginner
Works on
Web
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Python Tutor?
Python Tutor shows exactly what happens in memory as your program runs, with frames, objects and pointers drawn step by step. It supports Python, Java, C, C++ and JavaScript, runs in the browser and is free to use, which makes it popular in classrooms around the world.
Pros: what Python Tutor does well
- Makes pointers and references visible
- Five languages supported
- Nothing to install
Cons: where it falls short
- Only suited to small programs
- Dated look
Who Python Tutor is for
Beginners and teachers who want to see what code really does.
Who can skip it
Experienced developers debugging large real-world projects.
Python Tutor alternatives
Not sold on Python Tutor? These do a similar job, and each card says what it has in common.
fast.ai
Focus: deep learning, machine learning and course. Shares python with Python Tutor. A course, not a web app. Rated 4.8 (Python Tutor: 4.6).
CourseFreeWeb
4.8Visit
FinAI Research
Focus: finance, economics and research. Shares python with Python Tutor. An AI tool, not a web app. Adds macOS, Windows and Linux. Rated 4.2 (Python Tutor: 4.6).
AI ToolFreemacOS, Windows
4.2Visit
Compiler Explorer
Focus: compiler, assembly and c++. Also in Learning and Research, like Python Tutor. Rated 4.8 (Python Tutor: 4.6).
Web AppFreeWeb
4.8Visit
Desmos
Focus: graphing calculator, maths and education. Also in Learning and Research, like Python Tutor. Adds iOS and Android. Rated 4.8 (Python Tutor: 4.6).
Web AppFreeWeb, iOS
4.8Visit
DevDocs
Focus: documentation, api reference and developer tools. Also in Learning and Research, like Python Tutor. Adds Offline. Rated 4.7 (Python Tutor: 4.6).
Web AppFreeWeb, Offline
4.7Visit
Free alternatives to Python Tutor
Want to spend nothing? These free picks cover similar ground.
Ptable
Focus: chemistry, periodic table and science. Also in Learning and Research, like Python Tutor. Rated 4.7 (Python Tutor: 4.6).
Web AppFreeWeb
4.7Visit
Wakamai Fondue
Focus: fonts, opentype and typography. Also in Learning and Research, like Python Tutor. Same 4.6 rating.
Web AppFreeWeb
4.6Visit
Human Atlas
Focus: anatomy, 3d and education. Also in Learning and Research, like Python Tutor. Rated 4.5 (Python Tutor: 4.6).
Web AppFreeWeb
4.5Visit
Open Knowledge Maps
Focus: research, academic search and open access. Also in Research and Learning, like Python Tutor. Rated 4.5 (Python Tutor: 4.6).
Web AppFreeWeb
4.5Visit
Shoogle
Focus: shadcn, ui components and search. Also in Research and Learning, like Python Tutor. Rated 4.4 (Python Tutor: 4.6).
Web AppFreeWeb
4.4Visit
Dive into Deep Learning
Focus: deep learning, book and course. Also in Learning and Research, like Python Tutor. A course, not a web app. Rated 4.9 (Python Tutor: 4.6).
CourseFreeWeb
4.9Visit
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