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Browser-based 2D physics sandbox for teaching and tinkering

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Which is more popular?
Based on our record, Physion seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | physion.net | notclass.com |
| Platforms | — | |
| Company | 2022 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Physion is a free browser-based 2D physics simulator. Draw rigid bodies (circles, rectangles, capsules, polygons, gears, text and polylines), connect them with joints and springs, then simulate liquids, soft bodies and particle emitters. Boolean shape operations and a scriptable laser raycast are...
No description of notclass yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Physion yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Liquids and Soft Bodies Simulation
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Notclass AI In 2026: Review
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Physion and notclass. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


'time scrolling by' with alias of clock time displayed everytime 'enter'/'return' pressed[0a][0b] would seem a bit easier to do than pop-up physics demo with 'clock displaying time flying through demo virtual space[1]. Although the later... - Source: Hacker News / over 2 years ago
Please give it a try at https://physion.net. Source: over 4 years ago
Tracking notclass since Nov 2024.
When comparing Physion and notclass, you can also consider the following products.


Algodoo is a 2D simulator freeware product designed as a physics learning tool. It was originally created by Emil Emerfeldt as part of his master’s thesis in 2008. Read more about Algodoo.
Compare Algodoo to Physion or notclass:


Motion Magic is a physics simulator built to help students visualize and solve classical mechanics problems through interactive simulations and analysis.
Compare Motion Magic Physics Simulator to Physion or notclass:

Your Laboratory for a Better Tomorrow
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