Random Matrix Generator
Generate random integer matrices, symmetric matrices, diagonal matrices or identity matrices. Control dimensions and value ranges; export JSON, CSV, TSV or plain text.
1. Set up your input
Random entries use browser crypto with rejection sampling. Identity and symmetric matrices must be square. Identity uses 0 and 1 independently of the selected random range; diagonal off-diagonal entries are always 0.
2. Preview & use the result
Load an example to get started.
Changing settings disables old exports. Processing runs locally; website ads and analytics follow our privacy information.
Using Random Matrix Generator
Generate random integer matrices, symmetric matrices, diagonal matrices or identity matrices. Control dimensions and value ranges; export JSON, CSV, TSV or plain text.
- Choose a matrix structure, row/column counts and inclusive random bounds.
- Select the output format. Generate again for new random values; identity matrices are deterministic.
- Copy or download the matrix. The JSON report includes dimensions, structure and all values.
Example
Random entries use browser crypto with rejection sampling. Identity and symmetric matrices must be square. Identity uses 0 and 1 independently of the selected random range; diagonal off-diagonal entries are always 0.
Questions & answers
Is the maximum value included?
Yes. Random integer bounds are inclusive. Rejection sampling avoids modulo bias.
What does symmetric mean?
Values mirror across the main diagonal, so A[i][j] equals A[j][i]. This does not ensure invertibility or positive definiteness.
Can I request an identity matrix?
Yes, with equal row and column counts. Its diagonal is 1 and all other entries are 0.
Can it generate floating-point matrices?
This version generates integers only, up to a 100 × 100 matrix.
Is my input uploaded for processing?
No processing upload is used. This tool runs in a local browser worker. Website ads and analytics follow the site privacy information.
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