binary

Convert each ASCII character's decimal code to three BCD nibbles, this site's documented convention.

Decode this site's 3-nibble hyphenated BCD segments back into ASCII text.

Decode a Binary-Coded Decimal (BCD) binary string back into its hexadecimal value.

Convert a binary value into its uppercase hexadecimal representation.

Encode a decimal float as its raw IEEE-754 bit pattern in hex (32-bit or 64-bit).

Decode a binary Gray code string back into its original hexadecimal value.

Convert a hexadecimal value into Binary-Coded Decimal (BCD), one 4-bit nibble per decimal digit.

Convert a hexadecimal value into binary, preserving each digit's exact 4-bit pattern.

Decode a raw IEEE-754 hex bit pattern (8 or 16 hex digits) back into its decimal float value.

Convert a hexadecimal value into its binary reflected Gray code representation.

Turn a hex byte dump of an image file into a live preview and downloadable file.

Interpret a hex bit pattern as a fixed-width signed or unsigned integer.

Encode a decimal integer as the exact fixed-width hex bit pattern it would have in memory.

Decode Bencode text (the format BitTorrent .torrent files use) into JSON.

Decode hex-encoded BSON bytes back into a readable JSON document.

Encode a JSON value as Bencode, the encoding BitTorrent .torrent files use.

Encode a JSON object as BSON, the binary format MongoDB uses on the wire.

Encode JSON as hex-dumped MessagePack using the smallest fixed-size encoding for every value.

Encode JSON as protobuf wire-format bytes without a .proto schema, with a field-number legend.

Encode a JSON value as UBJSON (Universal Binary JSON), shown as a hex dump.

Decode hex-encoded MessagePack bytes back into readable JSON.

Decode hex-encoded protobuf bytes into JSON with generic field1, field2 labels, no schema needed.

Decode hex-encoded UBJSON (Universal Binary JSON) bytes back into JSON.

Generate a random integer shown in base-2, with a configurable bit length.

Generate a string of N random bits, each independently 0 or 1.

Convert a list of sign-magnitude binary strings back into ordinary integers.

Convert a list of integers into sign-magnitude binary strings.

Decode a list of space-separated binary bytes back into UTF-8 text, item by item.

Convert every item in a list to its UTF-8 binary representation, byte by byte.

Decode space-separated 4-bit BCD nibbles back into a plain decimal number.

Decode space-separated 4-bit BCD nibbles back into an octal value.

Arrange binary digits around a circular ring outline within a text grid.

Upload any file and see every byte rendered as 8-bit binary, grouped hexdump-style.

See exactly how AND, OR, and XOR combine two binary numbers, one column at a time.

Trace an outward spiral curve through a grid, plotting your binary digits along the way.

Compare two binary strings bit by bit and see exactly which positions differ.

Convert a binary number to any target base from 2 to 36 using exact BigInt arithmetic.

Decode 8-bit binary bytes back into text using the IBM EBCDIC (CP037) code page.

Decode a 32-bit IEEE 754 single-precision binary string back into its decimal value.

Convert a binary string directly to its reflected binary Gray code equivalent.

Turn a string of 0s and 1s into a downloadable black-and-white pixel image.

Convert 32 bits of binary back into a readable IPv4 dotted-quad address.

Reconstruct an IPv6 address from 128 bits (8 groups of 16).

Convert an ordinary binary number to negabinary (base -2) using exact BigInt arithmetic.

Convert binary numbers to octal, precisely, even for arbitrarily long values.

Convert a binary number to a standard Roman numeral (values 1-3999 only).

Convert a binary (base 2) number to ternary (base 3) using exact BigInt arithmetic.

Decode space-separated 8-bit binary octets as a UTF-8 byte sequence back into text.

Turn binary digits into an actual, downloadable monochrome .bmp file with correct BMP headers.

Arrange a binary string's digits into a zigzag pattern across multiple lines.

Upload an image and reduce every pixel to a single bit, concatenated into one binary string.

Group a raw bit string into space-separated 8-bit bytes, padding the final byte if needed.

Validate space-separated 8-bit bytes and concatenate them into one continuous bit string.

Encode each digit of a decimal number as its own 4-bit BCD nibble.

Convert a decimal integer to its Gray code (reflected binary code) representation.

Convert printable ASCII text into its IBM EBCDIC (CP037) binary byte representation.

Convert a decimal number into its exact IEEE 754 single-precision (32-bit) binary layout.

Decode a reflected binary Gray code string back to ordinary binary.

Convert a Gray code (reflected binary) value back to its decimal integer equivalent.

Decode a Gray code value (in binary digits) back to its octal equivalent.

Convert an IPv4 dotted-quad address into its 32-bit binary representation.

Convert a full IPv6 address, including :: zero-compression, into its 128-bit binary form.

Decode a two's-complement binary string to its signed decimal value.

Encode a signed decimal integer into two's-complement binary at a bit width you choose.

Convert an octal value to Binary-Coded Decimal, one 4-bit nibble per decimal digit.

Convert octal numbers to binary, precisely, even for arbitrarily long values.

Convert an octal number to its Gray code equivalent, expressed as binary digits.

Convert a standard Roman numeral to its binary representation.

Convert a ternary (base 3) number to binary (base 2) using exact BigInt arithmetic.

Encode text as its real UTF-8 byte sequence, shown as 8-bit binary octets.