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# Ones counter

World's simplest binary tool
Free online binary ones counter. Just load your binary values and the number of their set bits will be automatically calculated. There are no ads, popups, or nonsense, just an awesome high bit counter. Load binary values – get the number of ones. Created for developers by developers from team Browserling.
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Multiline Option
Count the number of ones in each line separately.

## What is a ones counter?

learn more about this tool
This utility calculates the number of ones in binary values. It can count the high bits in binary numbers of any length. It can also process multiple binaries at once if they are entered one per line. With the multiline option active, it displays the number of 1's for each value individually. If option multiline is turned off, it displays the total number of ones in all binary values. The binary representation can also be prefixed or suffixed with the binary base indicator. For example, "0B101", "101b", or "101₂". The presence of a base indicator does not affect the number of high bits. Simple and easy!

## Ones counter examples

Click to use
Ones in Binary Number
In this example, we calculate the number of 1's in the decimal number 54483 that's written in the binary representation. The input number contains sixteen bits and nine of them are ones.
1101010011010011
9
Required options
These options will be used automatically if you select this example.
Count the number of ones in each line separately.
Prefixed Binaries
In this example, we count the number of set bits in seven binary numbers that have binary base prefixes or suffixes. We use the "Multiline" option so that the calculation is carried out individually for each line.
0b1111111 B000000000 b010101000001 0B0111100101101 110111101001101b 10010011110010110B 0110110110110110110₂
7 0 4 8 10 9 12
Required options
These options will be used automatically if you select this example.
Count the number of ones in each line separately.
1024-bit RSA Key
This example processes a large 1024-bit binary private key and calculates the number of ones in it. It turns out that in this number there are 508 symbols that are '1' and the rest 516 (1024-508) symbols are '0'.
1010100001101001001000111000101000100000100011011000110001001100101011000101001101101011011010011011101111111010011101001100000010110000011110111001100100011110011111110001100000011000001100011111010000111111101110110000000101000111011011000011010000000110110011100011011100000000001010011001111000001011000101001001111000100110110111011001000100101010110011101010001101000000111000100000110001101110001000101100010101111100011101110000100000100110101011011000011011100001001011100001011101101010110010101111111010101011111011011111101010101001101111001100110010111100100101001000111100111011110011011110101111011111110001110100110010010111000101100101100001001000111000001101011000010001011011010110101010101010001100011110000001110011010110100000101100111101010011110111000111111010011001011010000101000110101000011000111000011111100100011110000011010110111101000010100101010000010000111110110101101111010101000110111001010000110100110111111111110001110101110011110010010001010010001001100110110001001101001110000010011101
508
Required options
These options will be used automatically if you select this example.
Count the number of ones in each line separately.
Pro tips Master online binary tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinebinarytools.com/count-one-bits?input=1101010011010011&multiline=false
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