Random Binary Number Generator
Generates a random whole number within a range you choose and shows it in binary (base 2) alongside the decimal value — useful for computer science teaching or practice.
What this generator does
Produces a random number shown in base 2, alongside its decimal value, for number-base practice and for testing code that parses binary input.
How to use this tool
- Set a minimum and maximum.
- Press generate for a random number shown in binary and decimal.
Worked examples
- Format
- 10110110 (decimal 182)
Common use cases
- Computer science / binary teaching examples
- Practising decimal-to-binary conversion
- Generating test values for code
Limitations and good to know
- The minimum cannot go below 0 — binary here represents an unsigned whole number, and there is no established way to show a negative value in this format.
- Only one binary/decimal pair appears per press; drawing several to compare requires generating again for each one.
- Width is not padded to a fixed number of digits, so an 8-bit value like 5 prints as 101, not 00000101.
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