Turn raw byte counts into human-readable sizes in KiB/MiB (binary) or KB/MB (decimal), and parse sizes back to bytes.. Bytes Humanizer is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter a byte count to see a readable size, or type a size like '5 MB' to get the exact byte value. Switch between binary (1024) and decimal (1000) units.
KB is decimal (1000 bytes) while KiB is binary (1024 bytes). Storage is often sold in KB; memory and many tools use KiB.
Operating systems disagree: Windows reports binary sizes labeled as KB/MB, while drive makers use decimal, causing the familiar mismatch.
Yes — enter a value with a unit like '1.5 GiB' and the tool returns the exact number of bytes it represents.