Binary Converter & Number Base Converter

Converting binary to text

For translating messages and sentences, the dedicated Binary to Text Converter works in both directions with full UTF-8 support and a per-character table. This converter is built for numbers, but its byte-sequence mode also shows how each byte maps to a character:

A binary translator converts binary code (sequences of 0s and 1s) into readable text or other number bases. Computers store all data as binary, so translating between binary and human-readable formats is a fundamental skill in programming, networking, and security work.

To translate binary to text with this tool, switch to byte sequence mode and enter your binary values space-separated (e.g., 01001000 01100101 01101100 01101100 01101111 → "Hello"). Each group of 8 binary digits (bits) represents one ASCII character. The tool converts all values simultaneously, showing you decimal, hex, octal, and ASCII side by side.

Common binary translation examples

Single number vs byte sequence

The two modes serve different needs:

• Single number: treats the input as one large value. FF in hex = 255 in decimal = 11111111 in binary. Useful for cryptography, ID values, large integers.
• Byte sequence: each space-separated value is a byte. 48 65 6C 6C 6F = "Hello". Useful for binary protocol debugging, ASCII analysis, hex dumps.

Quick reference

BigInt support

The single-number mode uses JavaScript BigInt, so values are not limited to 64 bits. A 1000-digit decimal number converts cleanly to its binary or hex representation. This matters for crypto keys, blockchain identifiers, and prime factor work.

Common conversion contexts

• Binary to text: CTF challenges, debugging serial protocols, exploring how strings encode.
• Hex to text: reading raw memory dumps, hex-encoded strings in PCAP files, parsing JWT signatures.
• Decimal to hex: converting RGB values, IP addresses, port numbers, color codes.
• Octal: Unix file permissions (chmod 755 means binary 111 101 101).

Related articles

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• 6 min readBinary to Decimal: Convert Binary Numbers the Right WayBinary to decimal conversion is foundational to understanding how computers store numbers. Here's the math, the algorithm, and how to convert in your head for small values.
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• 6 min readHexadecimal Explained: Why Programmers Use Hex and How to Read ItHexadecimal (base-16) is used in programming for memory addresses, color codes, binary data, and debugging. Here's why hex exists, how to read it, and how to convert it.
• 5 min readNumber Base Conversion: Binary, Octal, Decimal, and HexadecimalConvert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). Includes step-by-step conversion methods, JavaScript parseInt/toString,...
• 6 min readNumber Systems Guide: Binary, Octal, Decimal, HexadecimalComputers use binary, programmers use hexadecimal, and humans use decimal. Here's how all four number systems work, how to convert between them, and where each system is used...
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Reference pages

• Roman numerals chart and popular numbers: a page for every number people look up.