Invert a Matrix
Find the inverse of a matrix. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Invert a Matrix
- 1. Paste your matrix. Enter a square matrix as rows of numbers, one row per line with values separated by spaces. Only square matrices with a nonzero determinant can be inverted.
- 2. Set the decimal places. Choose Decimal places to control rounding in the result, since Gauss-Jordan elimination usually produces fractions that do not terminate cleanly in decimal.
- 3. Set the element separator. Pick the Element separator used between numbers in the output row, for example a space or comma, to match the format your next tool expects.
- 4. Copy the inverse matrix. The output pane shows the inverted matrix instantly. Copy it to verify a linear algebra homework answer or feed it into further calculations.
When to use Invert a Matrix
Invert a Matrix computes the multiplicative inverse of a square matrix using Gauss-Jordan elimination. It is for anyone who needs A inverse without running a full computer algebra system or hand-cranking cofactor expansions.
- Checking a linear algebra homework answer. You solved a 3x3 matrix inversion by hand for a linear algebra course and want to confirm your row-reduction result before submitting, without opening a heavier tool like MATLAB or Python.
- Solving a system of linear equations. You have a system Ax = b and want to compute A inverse directly so you can multiply it by b, useful when you need the inverse itself rather than just one solution vector.
- Verifying a transformation is reversible. In a graphics or robotics project, you built a transformation matrix and want to confirm it inverts cleanly, which tells you the transform is not degenerate before shipping it into a pipeline.
- Debugging a matrix library implementation. You are writing your own matrix inversion routine for a small numerical library and want known-correct output for a handful of test matrices to compare against your implementation.
Examples
Inverse of a diagonal matrix
Input
2 0 0 2
Output
0.5 0 0 0.5
Inverse of a 2×2 matrix
Input
4 7 2 6
Output
0.6 -0.7 -0.2 0.4
About the Invert a Matrix tool
Invert a Matrix runs as plain JavaScript in your browser tab, with no server behind it. Find the inverse of a matrix. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Math Tools section, 234 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with 2 settings, including Decimal places and Element separator, and the result refreshes the moment you change one. 2 worked examples further down the page show exactly what the tool produces for real inputs.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Invert a Matrix free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.