Looking for a MATLAB® compiler online?

If you want to run a MATLAB® style .m script online, this free browser-based tool gives you a place to write code, run it, enter input, and inspect the output. It uses GNU Octave 9.4.0, an open source environment that supports many MATLAB® language features, so compatibility varies by script and function.

The name “MATLAB compiler” can also refer to software that compiles MATLAB programs into standalone applications. This online tool does not do that: it runs code in GNU Octave and does not package .m files into binaries. It is not an official MathWorks product and is not affiliated with or endorsed by MathWorks.

What you can do with the online MATLAB® style code runner

Use the editor to write or paste code into the starter main.m script, then run it in the browser. You can reset or stop a run, interact with a standard input and output terminal, and view supported plots captured during execution.

That makes the online runner useful for trying a short calculation, learning matrix syntax, checking a supported script, or exploring a numerical result without downloading a separate runtime. The tool accepts code as text; it does not support uploading .m files.

GNU Octave functions and supported packages

GNU Octave’s core includes matrix calculations, Fast Fourier Transform (FFT) functions, numerical integration, and optimization functions. The tool also includes these packages:

  • control 4.1.1 — load it in a script with pkg load control.

  • signal 1.4.6 — load it with pkg load signal.

These are GNU Octave packages. Their presence does not mean that MathWorks toolboxes are installed or that every MATLAB® function behaves identically. Test your code in the target environment, especially when it depends on specialized functions or toolbox features.

Plotting and interactive input

You can use the terminal to provide standard input and read text output. The runner can capture up to four headless PNG plots per run. Each plot can be up to 960 × 640 pixels and 2 MB, with a combined limit of 8 MB.

For example, a small matrix calculation can be entered directly in the editor:

A = [1 2; 3 4];
disp(A * A);

Run the script to see its output in the terminal. The example uses basic matrix syntax; more advanced scripts may require functions or packages that are not available in this runtime.

How to run MATLAB® style code online

  1. Open the GNU Octave compiler page.

  2. Write or paste supported code in the browser editor’s main.m starter file.

  3. Select Run. If your script requests input, provide it in the terminal.

  4. Review the text output and any captured plots. Reset or stop the run as needed.

Runtime limits

Limit

Current default

Source code

64 KiB

Standard input

16 KiB

Compute time

12 seconds

Memory

512 MiB

Captured plots

Up to 4 PNG files per run; 960 × 640 pixels each

Plot output size

2 MB per image; 8 MB total

Run requests

6 per minute and 100 per day

Request limits are configurable and may change. The interactive terminal also has startup, idle, and total session timeouts of 30, 45, and 90 seconds, respectively.

MATLAB® and GNU Octave compatibility

GNU Octave supports many MATLAB® style language features, but the two environments are not interchangeable in every case. A script may need changes if it uses unsupported functions, relies on different function behavior, or depends on proprietary software.

This runner does not provide MathWorks toolboxes, Simulink, App Designer, or the MATLAB® desktop GUI. It also does not offer local runtime downloads, file uploads, or standalone application generation. If you need a full MATLAB® installation, a specific MathWorks toolbox, Simulink models, or packaged deployment, this browser runner is not a substitute.

Frequently asked questions

Is this a free online MATLAB® compiler?
It is free to use and runs supported .m code online through GNU Octave. It is a code runner, not a tool for compiling MATLAB® programs into standalone applications. Run limits apply.

Can I run MATLAB® code online without installing MATLAB®?
You can run scripts that are compatible with this GNU Octave environment. Compatibility varies, and scripts that depend on unavailable functions, proprietary toolboxes, or other MathWorks products may not work.

Is this MATLAB® Compiler from MathWorks?
No. MATLAB® Compiler is a separate MathWorks product. This website runs code with GNU Octave 9.4.0 and is not affiliated with, endorsed by, or an official MathWorks product.

Can I upload an .m file?
No. Enter or paste code as text in the browser editor; file upload is not supported.

Which MATLAB® toolboxes are included?
No proprietary MathWorks toolboxes are included. The runtime provides GNU Octave’s core functions, plus the control 4.1.1 and signal 1.4.6 packages.

Can it create a standalone app from my script?
No. It runs code in an online session; it does not compile .m scripts into standalone binaries or applications.

MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See mathworks.com/trademarks for a list of additional trademarks.