Leaderboard Ad
Advertisement — Top Banner (728×90)
→ Replace with Google AdSense <ins> tag
Free Binary Converter Online – Convert Binary, Decimal, Hex & Octal
Convert between binary, decimal, hexadecimal, and octal online for free. All formats update simultaneously. Text to binary included. No signup. Try now!
✅ 100% Free⚡ Instant Results🔒 No Signup📱 Mobile Friendly🔐 No Data Stored
Number Base Converter
Digits 0–9
Digits 0–1
Digits 0–7
Digits 0–9, A–F
Text ↔ Binary
Binary output here...
Text output here...
🏷️
Sponsored
Looking for more advanced Free Binary Converter features? Try Pro Tool →
→ Replace with real affiliate link. Disclose per FTC guidelines.
Responsive Ad Unit
Advertisement — In-Content
→ Replace with Google AdSense <ins> tag
Common Use Cases
💻
Computer Science Study
Convert between number bases for coursework, assignments, and exam preparation.
🌐
Networking
Convert IP addresses and subnet masks between decimal and binary for subnetting calculations.
🎨
Color Codes
Convert hex color codes to decimal RGB and binary for graphics programming and shader work.
🔐
Permissions
Convert Unix permission values between octal, binary, and decimal for chmod and access control.
🔌
Embedded Systems
Convert between binary, hex, and decimal for microcontrollers and memory addresses.
📚
Education
Teach and learn binary arithmetic, two's complement, and bit shifting fundamentals.
Frequently Asked Questions
What is binary?
Base-2 number system using only 0 and 1 — the fundamental language of computers and digital systems.
What is hexadecimal used for?
Hex is used in programming, HTML color codes (#FF5733), memory addresses, and network protocols.
Can it convert text to binary?
Yes — use the ASCII text section to convert any text string into binary representation.
What is octal used for?
Octal (base-8) is used in Unix file permissions (chmod 755) and some low-level programming contexts.
Is the converter free?
Yes — completely free with no account required.