Number Base Converter
Convert numbers between Binary (2), Octal (8), Decimal (10) and Hexadecimal (16) instantly. Custom bases 2–36 supported.
| BIN 2 | 📋 | ||
| OCT 8 | 📋 | ||
| DEC 10 | 📋 | ||
| HEX 16 | 📋 | ||
| B36 | 📋 |
About the Number Base Converter
The DevKit4You Number Base Converter is a fast, developer-friendly tool for converting numbers between different numeral systems instantly. It supports Binary (Base 2), Octal (Base 8), Decimal (Base 10), Hexadecimal (Base 16), and any custom base from 2 to 36.
This tool is useful for programmers, computer science students, cybersecurity learners, embedded developers, and anyone working with low-level data, bitwise operations, encoding systems, or digital electronics. Everything runs locally in your browser — fast, private, and offline-friendly.
Key Capabilities
0000 0000 1111 1111FFPrivacy & Transparency
The DevKit4You Number Base Converter is built with simplicity, speed, and privacy in mind.
How to Use
Using the DevKit4You Number Base Converter is simple and fast.
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01Choose the Input BaseSelect the format of your input number — Binary (2), Octal (8), Decimal (10), Hexadecimal (16), or a Custom Base.Example
Decimal (10) -
02Enter the NumberType or paste your value into the input field. The tool validates digits against the selected base automatically.Example
255 -
03Click ConvertPress the CONVERT button (or use the Live Convert toggle for instant results as you type).
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04Review the ConversionsThe tool displays Binary, Octal, Decimal, Hexadecimal, and Base 36 equivalents simultaneously.Example
BIN: 11111111 · HEX: FF · OCT: 377 -
05View Bit RepresentationsEnable the Bit widths toggle to inspect 8-bit, 16-bit, and 32-bit representations — ideal for binary learning, debugging, and memory visualization.Example
0000 0000 1111 1111 -
06Copy Any ResultClick the 📋 copy icon next to any conversion row to instantly copy it to your clipboard.
Understanding Common Number Bases
Uses only 0 and 1. Binary is the foundation of all digital computing and electronic systems — every piece of data processed by a CPU is ultimately binary.
Uses digits 0–7. Historically used in Unix systems for compact binary grouping. Each octal digit represents exactly 3 bits. Example: chmod 755
The standard human number system using digits 0–9. This is the everyday counting system used across science, finance, and engineering.
Uses 0–9 and A–F. Widely used in memory addresses, color codes, cryptographic hashes, and machine-level programming. 2 hex digits = 1 byte. Example: #FF5733
Uses 0–9 and A–Z. Often used for short IDs, URL slugs, compact identifiers, and encoding systems where a human-readable, case-insensitive, compact format is needed.