Is this matrix calculator free?

Yes, completely free with no signup and no usage limits.

Does my data leave my device?

No. All matrix operations run locally in your browser.

Yes. The layout adjusts for mobile screens and works on iPhone and Android.

进行 2×2 与 3×3 矩阵的加减乘运算，并计算行列式与反矩阵。

Matrix size:

Matrix A

Matrix B

Choose 2×2 or 3×3 matrix size, then fill in the values for matrices A and B.
Click an operation button: A + B, A − B, A × B, det(A), or A⁻¹.
The result appears instantly. For the inverse, an error is shown if the matrix is singular (det = 0).

Is this matrix calculator free?: Yes, completely free with no signup and no usage limits.
Does my data leave my device?: No. All matrix operations run locally in your browser.
Does it work on mobile?: Yes. The layout adjusts for mobile screens and works on iPhone and Android.

Last updated: 2026-05-20 By jarvisbox