Generate Complex Numbers
Create a list of complex numbers. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Generate Complex Numbers
- 1. Set How many numbers, Minimum value and Maximum value. There's nothing to paste here. Choose the count under How many numbers, and the range for both real and imaginary parts under Minimum value and Maximum value.
- 2. Set Decimal places and Separator. Choose how much precision to show under Decimal places, and set Separator to control what appears between generated complex numbers.
- 3. Copy the complex numbers. Copy the generated a plus bi values, such as 3.14 plus 2.71i, from the output pane into a math worksheet, script or test dataset.
When to use Generate Complex Numbers
Generate Complex Numbers produces a batch of random values in a plus bi form, each with a real and imaginary component you control the range for. It's a fast way to get sample complex numbers without picking components by hand.
- Creating test data for a complex arithmetic function. You're writing code that adds, multiplies or plots complex numbers, and need a batch of random values with known bounds to test the implementation against.
- Preparing practice problems for a complex numbers lesson. A math worksheet needs a set of complex numbers for students to plot on the complex plane or add together as practice problems.
- Generating sample points for a complex plane visualization. You're building a chart or diagram plotting complex numbers and need several sample points within a specific real and imaginary range.
- Testing formatting for complex number display. You're checking how your application formats and displays a plus bi notation and need varied random examples, including negative components, to verify the formatting logic.
Examples
Five complex numbers
Output
3.14 + 2.71i -4.00 - 1.50i 0.75 + 9.20i -6.30 - 0.10i 8.00 + 5.55i
Integer complex numbers (0 decimals)
Output
3 + 2i -4 - 1i 7 + 5i
About the Generate Complex Numbers tool
Generate Complex Numbers is a free online tool that works entirely inside your web browser. Create a list of complex numbers. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 194 Number utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 5 settings, including How many numbers, Minimum value, Maximum value and Decimal places, 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.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Generate Complex Numbers cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.