Tool category
Encoding & Conversion
Byte-level converters — Base64, URL encoding, hex, and other data-encoding transforms.
Tools
Encoding & Conversion
Featured guides in this category — tools with a deeper how-to-use writeup
ASCII to Unicode converter Encoding & Conversion Open Atbash cipher converter Encoding & Conversion Open Barcode reader (from image) Encoding & Conversion Open Base32 encoder/decoder Encoding & Conversion Open Base58 encoder/decoder (Bitcoin-style) Encoding & Conversion Open Base64 Encoder/Decoder Encode/decode Base64 Open Baudot code converter Encoding & Conversion Open BCD (binary-coded decimal) converter Encoding & Conversion Open Beaufort cipher tool Encoding & Conversion Open Byte order (endian) converter Encoding & Conversion Open Credit card number generator (test/fake) Encoding & Conversion Open Data URI generator Encoding & Conversion Open EAN/UPC barcode validator Encoding & Conversion Open EBCDIC to ASCII converter Encoding & Conversion Open Emoji to text descriptor Encoding & Conversion Open Excess-3 code converter Encoding & Conversion Open File extension lookup Encoding & Conversion Open File hash calculator (drag & drop) Encoding & Conversion Open File size converter (human readable) Encoding & Conversion Open Gray code converter Encoding & Conversion Open Hash identifier (MD5 vs SHA1 vs SHA256) Encoding & Conversion Open Hex string to bytes viewer Encoding & Conversion Open HTML color code to name converter Encoding & Conversion Open IBAN validator Encoding & Conversion Open IEEE 754 float viewer Encoding & Conversion Open IPA (phonetic) character picker Encoding & Conversion Open ISBN validator/checksum Encoding & Conversion Open ISBN-10 to ISBN-13 converter Encoding & Conversion Open Luhn algorithm step-by-step explainer Encoding & Conversion Open MIME type identifier Encoding & Conversion Open Morse code audio player Encoding & Conversion Open Number to words converter Encoding & Conversion Open Octal to decimal converter Encoding & Conversion Open One-time pad generator Encoding & Conversion Open Phonetic alphabet to text decoder Encoding & Conversion Open Pigpen cipher encoder Encoding & Conversion Open Playfair cipher encoder Encoding & Conversion Open Punycode encoder/decoder (IDN domains) Encoding & Conversion Open QR code decoder (from image) Encoding & Conversion Open Rail fence cipher tool Encoding & Conversion Open Roman numeral validator Encoding & Conversion Open Semaphore flag translator Encoding & Conversion Open Shorthand/abbreviation expander Encoding & Conversion Open Speech to text (browser API) Encoding & Conversion Pro Steganography text hider (in image) Encoding & Conversion Open Tally mark counter Encoding & Conversion Open Tap code translator Encoding & Conversion Open Text to emoji replacer Encoding & Conversion Open Text to speech (browser API) Encoding & Conversion Open Two's complement converter Encoding & Conversion Open Unicode escape converter (\uXXXX) Encoding & Conversion Open URL Encoder/Decoder Encode/decode URLs Open URL shortener format explainer Encoding & Conversion Pro UTF-8 encoder/decoder Encoding & Conversion Open Vigenère cipher tool Encoding & Conversion Open Words to number converter Encoding & Conversion Open