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Free Online Matrix Calculator

Add, multiply or transpose rectangular JSON numeric matrices up to 20 by 20.

Your input stays on this device. Processing is bounded; regex runs in a worker with a two-second timeout.

Result



How to use Matrix Calculator
Add, multiply or transpose rectangular JSON numeric matrices up to 20 by 20.
  1. Set Text.
  2. Set Other.
  3. Set Operation.
  4. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Add, multiply or transpose rectangular JSON numeric matrices up to 20 by 20. The example below demonstrates Text; Other; Operation.
Example input:
{
  "text": "[[1,2],[3,4]]",
  "other": "[[5,6],[7,8]]",
  "operation": "multiply"
}
Expected result (relevant fields):
[
  [
    19,
    22
  ],
  [
    43,
    50
  ]
]
Features & result limitations
Add, multiply or transpose rectangular JSON numeric matrices up to 20 by 20.
Frequently asked questions
What inputs does Matrix Calculator accept?
Text; Other; Operation
How should I interpret the Matrix Calculator result?
Add, multiply or transpose rectangular JSON numeric matrices up to 20 by 20.
Where does Matrix Calculator process my data?
Inputs are processed locally in your browser. Submitted text is not sent to external services. A successful-run event increments an aggregate tool counter without your input.