Convert ASCII characters into binary numbers.

Convert binary numbers back into ASCII characters.

Convert ASCII characters into octal values.

Convert octal values back into ASCII characters.

Convert ASCII characters into decimal code values.

Convert decimal code values back into ASCII characters.

Convert ASCII characters into hexadecimal values.

Convert hexadecimal values back into ASCII characters.

Convert ASCII characters into numbers of any base up to 36.

Convert numbers of any base back into ASCII characters.

Convert an ASCII string into raw byte values.

Convert raw byte values back into an ASCII string.

Browse the full ASCII table with codes and characters.

Look up any ASCII character's codes and properties.

Generate ASCII characters from a chosen range.

Fold accented and Unicode text down to plain ASCII.

Convert ASCII characters into Unicode escape notations.

Convert Unicode escapes back into ASCII characters.

Turn text into large ASCII-art letters.

Wrap text in a customizable ASCII box.

Generate decorative ASCII divider lines.

Build aligned ASCII tables from your data.

Encode and decode HTML entities.

Percent-encode and decode URL text.

Escape and unescape strings for many languages.

Encode and decode Base64 data.

Convert text between letter cases.

Encode and decode Base32 with several variants.

Encode and decode Base45 data.

Encode and decode Base58 with Base58Check support.

Encode and decode Base85 / Ascii85 variants.

Produce and parse canonical hex dumps.

Encode and decode Quoted-Printable text.

Encode and decode Punycode / IDN labels.

Generate random ASCII strings and passwords.

Encrypt and decrypt with the Caesar shift cipher.

Convert letters to their alphabet positions.

Translate between text and Morse code.

Encrypt and decrypt with the Vigenere cipher.

Encrypt with the zig-zag rail fence cipher.

Apply the self-inverse Atbash substitution.

Apply ROT13 and related rotation ciphers.

Encrypt and decrypt with the affine cipher.

Hide messages with Bacon's biliteral cipher.

Encode text into Polybius square coordinates.

Encode and decode prison tap code.

Encrypt with the fractionating Bifid cipher.

Encrypt with the Playfair digraph cipher.

Encrypt with the four-square cipher.

Encrypt with a keyed columnar transposition.

Encrypt with the ancient scytale cipher.

Count characters, words and lines in text.

Validate and clean text against ASCII ranges.

Compare two texts character by character.

Analyze character frequency in text.