Free online tools
Find the right converter
Binary, hex, octal, text and data size tools. Everything runs in your browser and nothing is uploaded.
Binary
- Binary translatorBinary code to text and back
- Text to binaryEncode any text as binary
- Binary to decimalBase 2 to base 10, with steps
- Decimal to binaryBase 10 to base 2, with steps
- Binary to hexGroup bits into hex digits
- Hex to binaryEach hex digit as 4 bits
- Binary to ASCII8-bit groups to ASCII characters
- ASCII to binaryCharacters to 8-bit ASCII codes
- Binary to octalBase 2 to base 8
- Octal to binaryBase 8 to base 2
- Image to binaryPictures to 0s and 1s and back
- IP to binaryIPv4 addresses in binary
- Gray codeBinary to Gray code and back
- BCD converterBinary-coded decimal
Hex
- Hex to decimalBase 16 to base 10, with steps
- Decimal to hexBase 10 to base 16, with steps
- Hex to textDecode hex bytes as ASCII or UTF-8
- Text to hexText and ASCII to hex bytes
- RGB to hexColor values to hex codes
- Hex to RGBHex color codes to RGB values
- Hex editorView and edit file bytes
- Hex dumpText or files to a hex dump
Octal and base
- Base converterAny base from 2 to 36
- Octal to decimalBase 8 to base 10
- Decimal to octalBase 10 to base 8
- Hex to octalBase 16 to base 8
- Text to octalCharacters to base 8 codes
Text and encoding
- ASCII to textCharacter codes back to words
- Text to ASCIIWords to character codes
- Letters to numbersA1Z26 and other alphabets
- Numbers to lettersDecode A1Z26 and ASCII numbers
- Unicode code point converterCode points, UTF-8, UTF-16 and escapes
- Base64 decodeBase64 to text and back
- Base64 to hexBase64 to hex bytes and back
- Base64 to imagePreview and save Base64 images
- Base64 to PDFPreview and save Base64 PDFs
- Decimal to ASCIINumber codes to text
Calculators
- Binary calculatorAdd, subtract, multiply, divide, AND, OR, XOR
- Hex calculatorHex math with the working shown
- XOR calculatorXOR, AND, OR and more on any values
- Two's complementSigned binary in 4 to 64 bits
- IEEE 754 converterDecimal to float bits and back
- One's complementFlip bits, signed values and checksums
Data size
- Byte converterBits, bytes, KB, MB, GB, TB and PB
- KB to MBKilobytes to megabytes
- MB to KBMegabytes to kilobytes
- MB to GBMegabytes to gigabytes
- KB to GBKilobytes to gigabytes
- Bytes to MBBytes to megabytes
- GB to TBGigabytes to terabytes
- GB to MBGigabytes to megabytes
- TB to GBTerabytes to gigabytes
- Bytes to KBBytes to kilobytes
- Bits to bytesBits to bytes and back
- GiB to GBGibibytes to gigabytes
- Mbps to GbpsData rates and speeds
- Download timeHow long a file takes
Reference
- ASCII tableAll 128 codes in dec, hex and binary
- Binary numbers0 to 1023 in binary
- Hexadecimal tableHex, decimal, binary and octal
- Binary alphabetLetters A to Z in binary
- Binary clockLive time in binary
- Binary worksheetsPrintable PDFs with answer keys