QuickTools

Number Base Converter

Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

number base converterbinary to decimalhex to decimaldecimal to binaryoctal converterbase conversion

Checking Converter Service...

Drag and drop here or

Upload a file for conversion

Options

Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.

Examples

Example 1
255
Click above to load example 1
Example 2
FF
Click above to load example 2
Example 3
11111111
Click above to load example 3
Example 4
377
Click above to load example 4

FAQ

Q: What bases are supported?

A: Binary (2), Octal (8), Decimal (10), and Hexadecimal (16).

Q: Can I enter hex with "0x" prefix?

A: Yes, 0x prefix is automatically stripped before conversion.

Q: What is the max number size?

A: Standard JavaScript integer range (up to 2^53-1). BigInt support coming soon.

Related Tools

Byte Unit Converter

Convert between bytes, KB, MB, GB, TB, PB with precision.

Base64 Encode/Decode

Encode text to Base64 or decode Base64 to text. Supports files.

Hash Generator

Generate SHA-1, SHA-256, SHA-384, SHA-512 cryptographic hash values from any text.

More in Developer Tools

JSON Formatter & Validator

Beautify, minify, validate, and fix JSON with syntax highlighting.

JSON to Go Struct

Convert JSON to Go struct definitions with tags and options.

JSON to TypeScript Interface

Convert JSON to TypeScript interfaces or types.

JSON ↔ YAML Converter

Convert between JSON and YAML formats with preserved structure.

CSV ↔ JSON Converter

Convert CSV files to JSON and JSON to CSV with custom delimiters.

SQL Formatter

Format and beautify SQL queries with syntax highlighting.

Privacy: This tool runs entirely in your browser. No data is sent to our servers.