Question 1

Is OnlineMATLAB.com free?

Accepted Answer

Yes. OnlineMATLAB.com is 100% free to use — no signup, no credit card and no hidden fees. Optional free accounts let you save and share your projects.

Question 2

Do I need to install or download MATLAB?

Accepted Answer

No. There is nothing to install or download. OnlineMATLAB runs entirely in your web browser on any device — Windows, macOS, Linux, Chromebook, tablets and phones.

Question 3

Can I run MATLAB code online in my browser?

Accepted Answer

Yes. Write MATLAB code in the editor and press Run to execute it instantly in the browser, including scripts, loops, functions and plots. Your code runs locally in your browser.

Question 4

What MATLAB functions are supported?

Accepted Answer

Over 500 MATLAB-compatible functions: matrix operations and linear algebra, 2D/3D plotting, signal processing (FFT, filters, convolution), image processing, statistics, control systems (transfer functions, Bode plots) and more.

Question 5

Is OnlineMATLAB a good free MATLAB alternative?

Accepted Answer

Yes. It is a free, install-free alternative for learning and running common MATLAB and Octave code directly in the browser, ideal for students, engineers and quick calculations.

Question 6

Is my code private and secure?

Accepted Answer

Your code executes locally in your own browser. Nothing is sent to a server to run it, so your work stays private unless you choose to save or share a project.

Question 7

Can I do FFT, signal processing and image processing online?

Accepted Answer

Yes. OnlineMATLAB includes FFT/IFFT, digital filters (Butterworth, FIR), convolution, windowing, spectrograms and image-processing functions so you can analyze signals and images online for free.

Question 8

Is OnlineMATLAB affiliated with MathWorks?

Accepted Answer

No. OnlineMATLAB.com is an independent project and is not affiliated with or endorsed by The MathWorks, Inc. MATLAB is a registered trademark of The MathWorks, Inc.

Question 9

Can teachers use OnlineMATLAB for classes and assignments?

Accepted Answer

Yes. Teachers create a class with a join code, students join via the code or a QR scan without creating accounts, and submissions are auto-graded against teacher-defined test cases. Students see scores instantly; teachers can add grades and feedback and export everything as CSV.

Question 10

Can I export my figures and apps?

Accepted Answer

Yes. Figures export as PNG or SVG images. App Designer projects export as runnable .m app files (real classdef code) or JSON, and any project can be shared by link or QR code and opened in a clean viewer page.