Number Base Converter — Binary, Octal, Decimal, Hex Online Free
⚙️ Converter ToolsConvert numbers between binary, octal, decimal, and hexadecimal instantly. Free on WeLuvTools.
What is Number Base Converter — Binary, Octal, Decimal, Hex Online Free?
WeLuvTools Number Base Converter translates numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) simultaneously — enter a number in any field and all other representations update instantly.
About Number Base Converter — Binary, Octal, Decimal, Hex Online Free
WeLuvTools Number Base Converter translates numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) simultaneously — enter a number in any field and all other representations update instantly. Essential for computer science students, programmers working with bitwise operations, networking engineers dealing with IP addresses and subnet masks, and anyone needing to understand how numbers are represented in different numeral systems.
100% Private
Files stay on your device.
Super Fast
Results in just a few seconds.
Secure & Safe
No account or upload needed.
Practical Limits
Capacity depends on your device.
Practical scenarios
Use cases
Common ways people get more value from this tool.
Use case 1
Converting decimal to binary for computer science coursework and coding challenges
Use case 2
Converting hex color codes to decimal RGB channel values
Use case 3
Converting memory addresses between hex and decimal for debugging
Use case 4
Understanding Unix file permission octal values (e.g. 755, 644)
Use case 5
Converting between number bases for bitwise operation analysis
Types & formats
Binary (base 2)
Uses 0 and 1 — the fundamental language of all digital computers
Octal (base 8)
Uses digits 0–7 — used in Unix/Linux file permissions
Decimal (base 10)
Standard human number system using digits 0–9
Hexadecimal (base 16)
Uses 0–9 and A–F — used in colors, memory addresses, and encoding
The WeLuvTools difference
Why choose WeLuvTools
Benefit 1
All 4 bases shown simultaneously — enter any base and see all others instantly
Benefit 2
Real-time conversion as you type — no button needed
Benefit 3
WeLuvTools Number Base Converter runs entirely in your browser
Benefit 4
Free to use without creating an account; practical capacity depends on your browser and device.