What size matrices are supported?

Up to 5×5 matrices for a fast and readable editing experience.

What happens if a matrix has no inverse?

A friendly error is shown when the matrix is singular or non-square.

Can I add matrices of different sizes?

No, addition and subtraction require matching dimensions.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Matrix Calculator

Add, multiply, transpose, and invert matrices with an editable grid.

Support

Works Offline

Privacy First

No Login

No API

Matrix Calculator

Edit matrix values and choose an operation

Operation

Matrix A

Rows

Cols

Matrix B

Rows

Cols

Result

Updates live

[ 2, 2 ]
[ 2, 2 ]

About the Matrix Calculator

Enter small matrices in an editable grid and perform addition, subtraction, multiplication, transposition, determinant and inverse calculations.

Examples

2x2 determinant

JSON[[1,2],[3,4]]

Output

-2

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser