1
Animated Engines
animatedengines.comAlso covers technology · same kind of website
Animated Engines uses animations to show how several types of engines work.
Alternatives
The Best Falstad Alternatives in 2026
24 alternatives4 free · 4 open source
Looking for something like Falstad? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 4 are free or have a free plan and 4 are open source.
This browser-based circuit simulator displays an animated LRC circuit and uses color to show voltage polarity and ground.
Top picks at a glance
First suggestionAnimated EnginesAnimated Engines uses animations to show how several types…Free or freemium optionLibrePCBLibrePCB supports drawing schematics and designing printed…Another optionKiCadKiCad is open-source software for drawing electronic…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Animated Engines | — | Not stated | Web |
| 2 | KiCad | — | Not stated | Linux, macOS, Web |
| 3 | Wiki | — | Not stated | Web |
| 4 | Ray Optics Simulation | — | Not stated | Web |
| 5 | EasyEDA | — | Not stated | Web |
| 6 | PicaSim | — | Not stated | Android, iOS, Web |
| 7 | Circuit steps | — | Not stated | Web |
| 8 | LibrePCB | Free | Yes | Windows, macOS, Linux |
| 9 | Thrustcurve3 | — | Yes | — |
| 10 | Skidl | — | Yes | — |
All Falstad alternatives
2
KiCad
kicad.orgAlso covers macos and technology · same kind of website
KiCad is open-source software for drawing electronic schematics, designing printed circuit boards and viewing them in 3D.
3
Wiki
wiki.openrocket.infoAlso covers technology · same kind of website
The OpenRocket wiki provides collaboratively written documentation for the open-source model rocket simulator.
4
Ray Optics Simulation
phydemo.app/ray-opticsAlso covers technology · same kind of website
Create and simulate two-dimensional geometric optics scenes with this free, web-based ray optics simulator.
5
EasyEDA
easyeda.com/editorAlso covers technology · same kind of website
EasyEDA supports circuit design, simulation, and PCB layout through an online electronic design environment.
6
PicaSim
rowlhouse.co.uk/PicaSimAlso covers technology · same kind of website
PicaSim provides information, media, and downloads for a radio-controlled flight simulator.
7
Circuit steps
circuitsteps.comAlso covers technology · same kind of website
Circuit Steps provides step-by-step solutions for electrical circuits.
8
Also covers macos and technology · open source · free
LibrePCB supports drawing schematics and designing printed circuit boards through an EDA application, with release updates on its site.
9
Also covers technology · open source
This repository contains code for the ThrustCurve.org site, which began as a collection of simulator files based on actual rocket motor firing data.
10
Also covers technology · open source
SKiDL uses Python to design electronic circuits, with KiCad and schematics among the repository's listed topics.
11
Also covers technology · open source
RocketPy describes itself as a six-degree-of-freedom trajectory simulator for high-power rocketry.
12
Also covers technology · same kind of website · free
MathNet lets users browse and search more than 30,000 Olympiad-level problems from 47 countries in 17 languages.
13
WebGL Water
madebyevan.com/webgl-waterAlso covers technology · same kind of website
WebGL Water presents an interactive water simulation demo for use in a browser that supports WebGL.
14
Also covers macos and technology · same kind of website · free
OpenRocket is model rocket simulation software with a download and information about supported operating systems.
15
Zygote Body
zygotebody.comAlso covers macos and technology · same kind of website
The Zygote Body site presents a virtual 3D anatomy atlas with model viewing, embedding, and account settings.
16
RCPlanes Online
rcplanes.onlineAlso covers macos and technology · same kind of website
RCPlanes Online offers a beginner's guide to basic aerodynamics and information for radio-controlled aircraft hobbyists.
17
OpenFOAM
openfoam.orgAlso covers macos and technology · same kind of website
OpenFOAM publishes news and access to its computational fluid dynamics software, including release and patch notes.
18
Cyberbotics
cyberbotics.comAlso covers macos and technology · same kind of website
Cyberbotics develops Webots, a platform for simulating robots and testing their behavior.
19
Rink
rinkcalc.appAlso covers technology · same kind of website
Rink lets visitors run queries in a browser and view the results locally without leaving the page.
20
DoublePendulum
theabbie.github.io/DoublePendulumAlso covers technology · same kind of website
An SVG-based interactive playground lets you explore a double pendulum through a browser visualization.
21
Fluid Simulation WebGL
paveldogreat.github.io/WebGL-Fluid-SimulationAlso covers technology · same kind of website
A WebGL fluid simulation runs in mobile browsers, according to the project description.
22
EMRap
emrap.org/hdAlso covers technology · same kind of website
EMRap provides medical education resources including courses, procedures, imaging, and videos.
23
FlowingData
flowingdata.comAlso covers technology · same kind of website
FlowingData publishes articles, projects, and learning resources about data visualization and statistics.
24
Also covers technology · same kind of website · free
Passmedicine offers online revision for the 2026 UCAT, with resources for exam preparation.
No alternatives match this filter.
Alternatives to similar tools
MathNet24 alternativesPassmedicine24 alternativesWiki24 alternativesEMRap24 alternativesFlowingData24 alternativesOpenFOAM24 alternatives
What is the best alternative to Falstad?
Based on features, tags and platforms, the closest alternatives to Falstad are Animated Engines, KiCad, and Wiki.
Is there a free alternative to Falstad?
Yes. LibrePCB, MathNet, and OpenRocket are free or offer a free plan.
Are there open-source alternatives to Falstad?
Yes: LibrePCB, Thrustcurve3, Skidl, and Rocket Py.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative