Binary Converter | Free Number System Converter Tool 2026

Binary Converter: Convert Between Number Systems

Enter a number in any format (binary, decimal, octal, or hexadecimal) and instantly see conversions to all other bases. Perfect for programmers, students, and electronics enthusiasts.

Enter a number and click Convert.

📊 Conversions: 0

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📸 Live preview — Number system converter.

Why Use a Binary Converter?

Computers use binary (base-2), but humans prefer decimal (base-10). Programmers also use octal and hexadecimal for compact representation. Our tool converts numbers between binary, decimal, octal, and hexadecimal. Just select the input base, enter the number, and see all conversions instantly. Perfect for low‑level programming, digital electronics, or learning number systems.

📌 How to Use

Enter a number.
Select its base (binary, decimal, octal, or hex).
Click "Convert".
View the equivalent values in all other bases.

✨ Features

🔢 Binary (base-2)

🔟 Decimal (base-10)

🔴 Octal (base-8)

🔶 Hexadecimal (base-16)

⚡ Instant conversion

🆓 Unlimited free

🔍 Most Searched Keywords

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⚙️ How It Works

We parse the input according to selected base using parseInt() with radix. Then we convert the decimal value to other bases using toString(radix).

🎯 Benefits

✅ Avoid manual calculation errors.
✅ Understand number systems.
✅ Free and private.

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❓ FAQ

❓ What is hexadecimal?
Base-16, using digits 0-9 and letters A-F.

❓ Can I convert negative numbers?
Yes, works with signed integers.

❓ Is it free?
Yes, forever.