FormatCalc library
Text & encoding
without the noise.
Encode, decode, count, clean, and reshape text for development or publishing work. Encoding changes representation rather than secrecy, so Base64, binary, and hexadecimal output should never be treated as encryption. Choose a tool below to get started—no account required.
Text to Base64
Encode plain text to Base64 locally.
Base64 to Text
Decode Base64 safely in your browser.
Text to Base32
Encode UTF-8 text as portable RFC 4648 Base32 locally.
Base32 to Text
Decode RFC 4648 Base32 into UTF-8 text in your browser.
Text to Base64URL
Encode UTF-8 text using URL-safe, unpadded Base64.
Base64URL to Text
Decode URL-safe Base64 into UTF-8 text.
Base64 to Hex
Convert Base64-encoded bytes into hexadecimal.
Hex to Base64
Convert hexadecimal bytes into Base64.
Base64 to Binary
Convert Base64-encoded bytes into eight-bit binary groups.
Binary to Base64
Convert eight-bit binary bytes into Base64.
File to Base64
Convert a small local file to Base64 without uploading it.
Base64 to File
Turn a Base64 string into a downloadable file locally.
URL Encoder
Encode text for a URL query parameter.
URL Decoder
Decode URL-encoded text with one click.
HTML Entity Encoder
Encode special characters for safe HTML display.
HTML Entity Decoder
Decode HTML entities back to regular text.
Unicode Escape Encoder
Convert text characters to JavaScript-style \uXXXX escapes.
Unicode Escape Decoder
Decode \uXXXX and \u{...} sequences back to text.
Text to ASCII Codes
Convert ASCII text into space-separated decimal character codes.
ASCII to Text
Convert decimal ASCII character codes back to text.
Text to Binary
Encode text as UTF-8 binary bytes.
Binary to Text
Decode 8-bit UTF-8 binary bytes back to text.
Text to Hex
Encode text as space-separated UTF-8 hexadecimal bytes.
Hex to Text
Decode UTF-8 hexadecimal bytes back to text.
Decimal to Binary
Convert a whole decimal number to binary.
Binary to Decimal
Convert a binary whole number to decimal.
Hex to Decimal
Convert a hexadecimal whole number to decimal.
Decimal to Hex
Convert a whole decimal number to hexadecimal.
Octal to Decimal
Convert an octal whole number to decimal.
Decimal to Octal
Convert a whole decimal number to octal.
ROT13 Encoder / Decoder
Apply the ROT13 substitution cipher to text.
Text to Morse Code
Translate letters and numbers into International Morse code.
Morse Code to Text
Decode International Morse code into readable text.
Slug Generator
Create a clean, lowercase URL slug from any title.
Title Case Converter
Convert text into readable title case.
Snake Case Converter
Convert text into developer-friendly snake_case.
Camel Case Converter
Convert text into lower camelCase.
Kebab Case Converter
Convert text into URL-friendly kebab-case.
Pascal Case Converter
Convert text into UpperCamelCase.
Word Counter
Count words, characters, sentences, and reading time.
Character Counter
Count characters with and without spaces.
Duplicate Line Remover
Keep only the first instance of each line.
Whitespace Remover
Remove extra spaces, tabs, and blank lines from text.
Line Sorter
Sort pasted lines alphabetically and remove the clutter.
Text Case Converter
Convert text to upper, lower, title, or sentence case.