ShadowToolkit

Number Base Converter

Number Base Converter running client-side on your device.

100% In-Browser
100% In-Browser PrivacyLocal

Your files and data are processed locally and never leave your device.

Number Base & Radix Converter

Real-time synchronized conversion across standard, cryptographic, and arbitrary bases.

Decimal (Base 10)
Hexadecimal (Base 16)
Binary (Base 2)
Nibbles: 1111 1111
Octal (Base 8)
Base58 (Bitcoin / IPFS)
5Q
Custom Base (12)
193
Base 12

Bitwise Operations Calculator

A AND B (A & B)
8 (0b1000)
A OR B (A | B)
29 (0b11101)
A XOR B (A ^ B)
21 (0b10101)
NOT A (~A)
-13 (0b11110011)
Left Shift (A << 1)
24 (0b11000)
Right Shift (A >> 1)
6 (0b110)

What is Number Base Converter?

Number Base Converter translates numerical values across standard positional numeral systems: Decimal (Base 10), Binary (Base 2), Hexadecimal (Base 16), Octal (Base 8), and custom bases from Base 2 through Base 36.

Zero-Server Client-Side Guarantee

Unlike legacy online utilities that upload sensitive media and documents to remote cloud storage, Shadow Toolkit executes this entire operation directly within your browser's local runtime. Your raw data never crosses the network.

Key Capabilities

  • Simultaneous multi-base conversion: Decimal, Binary, Hexadecimal, and Octal
  • Custom arbitrary radix support from Base 2 up to Base 36
  • Supports large integers with BigInt precision without overflow errors
  • 1-Click 'Copy Output' for programming variables
  • 100% private in-browser calculation

Common Use Cases

1Converting memory addresses and RGB color hex codes to decimal values
2Translating binary bitmasks and permissions into octal (e.g. chmod 755) and decimal
3Computer science education exploring positional number systems
4Eliminating manual arithmetic errors when translating technical specifications and measurement systems

How to use Number Base Converter

01

Select Input Base

Choose Decimal, Binary, Hex, or Octal.

02

Enter Number

Type your number in the selected base.

03

View All Base Conversions

Inspect the equivalent numbers across all bases in real time.

04

Copy Formatted Values

Review the converted unit values and copy the exact numerical results or formula breakdown for your documentation.

Frequently Asked Questions

Each hexadecimal digit corresponds to exactly 4 binary bits (a nibble), making Hex a compact, human-readable way to represent binary computer memory.

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