encoding

Encode a real uploaded file to Base64 or hex text, or decode text back into a downloadable file.

Encode every character of your text as a real, standard hexadecimal HTML/XML character reference.

Decode hexadecimal HTML/XML character references (&#xHHHH;) back to their original characters.

Decode a Base64 string back into pretty-printed JSON.

Parse application/x-www-form-urlencoded text, including bracket-path field names, into nested JSON.

Escape JSON text into a quote-free fragment for embedding in another string.

Wrap JSON text as a single quoted, escaped string literal.

Base64-encode a JSON document's raw UTF-8 bytes.

Encode JSON as a data:application/json;base64,... URI you can embed directly in HTML, CSS, or a link.

Flatten a JSON object into application/x-www-form-urlencoded text with bracket-path keys.

Reverse JSON escaping to recover the original text from an escaped fragment.

Decode a quoted JSON string literal back into its original text.

Decode a percent-encoded JSON value back into pretty-printed JSON.

Percent-encode JSON so it's safe to use as a URL query parameter.

Decode space-separated ASCII codes back into text.

Turn a Base64 string back into readable text.

Convert text into Base64, the ASCII-safe binary-to-text encoding.

Decode space-separated binary code points back into text.

Decode space-separated UTF-8 byte values back into text.

Decode space-separated decimal Unicode code points back into text.

Decode space-separated hexadecimal code points back into text.

Convert HTML entities back into their literal characters.

Escape HTML-significant characters so text renders literally.

Shift every letter backward by N positions in the alphabet, wrapping a to z.

Shift every letter forward by N positions in the alphabet, wrapping z to a.

Decode International Morse code back into text.

Translate text to International Morse code.

Decode a length-prefixed netstring back to plain text.

Wrap text as a length-prefixed netstring.

Decode space-separated octal code points back into text.

Wrap text in double quotes, escaping any quotes or control characters inside.

Shift printable ASCII characters by 47 places, a self-inverse cipher.

Backslash-escape quotes, backslashes, and newlines, C-style.

Resolve backslash escape sequences back to their literal characters.

Convert ASCII-only text to space-separated decimal ASCII codes.

Convert text to space-separated 8-bit binary code points.

Convert text to its actual UTF-8 byte values, space-separated.

Convert text to space-separated decimal Unicode code points.

Convert text to space-separated 2-digit hexadecimal code points.

Convert text to space-separated 3-digit octal code points.

Remove a matching pair of surrounding quotes and unescape the contents.

Turn percent-encoded text back into readable characters.

Percent-encode a string so it's safe to use in a URL.

Generate a real, scannable QR code from text, or decode one from an uploaded image.

Generate a real, scannable 1D barcode (CODE128, EAN-13, UPC, ITF-14, and more) from text.

Validate XML, then Base64-encode its raw bytes.

Decode Base64 back to UTF-8 text and pretty-print it as XML.

Validate XML, then percent-encode it for safe use in a URL.

Percent-decode a URL-encoded value, then pretty-print it as XML.

Wrap an XML document as a data: URI you can embed directly in HTML, CSS, or a config value.

Decode a data:application/xml;base64,... URI (or a bare Base64 string) back into readable XML.

Convert XML into Bencode, the encoding BitTorrent .torrent files use.

Decode Bencode (the BitTorrent encoding) into readable, well-formed XML.

Encode XML as this site's own compact binary tree format, shown as hex.

Decode this site's compact binary XML (hex) format back into readable, well-formed XML.

Convert XML into BSON, the binary document format MongoDB uses, shown as hex.

Decode hex-encoded BSON (MongoDB's binary document format) into readable XML.

Decode a Base64 string back into readable YAML.

Base64-encode a YAML document for embedding in configs or env vars.

Decode a percent-encoded string back into readable YAML.

Percent-encode a YAML document for safe use in a URL.

Generate random bytes and base64-encode them with the browser's real btoa() — both input and output shown.

Generate random text (including spaces, symbols, and unicode) and URL-encode it with the real encodeURIComponent().

Generate random UTF-16 text including surrogate-pair emoji, with a code-unit breakdown.

Generate random text and see its UTF-32 code-point breakdown, one 32-bit value per character.

Generate random multi-byte UTF-8 text and see its per-character byte breakdown.

Convert a list of integers into this site's own compact Base64 encoding scheme.

Convert a list of integers (Unicode code points) into percent-encoded URL characters.

Decode each Base64 item in a list independently, with per-item error reporting.

Base64-encode each item in a list independently, preserving the item count.

URL-decode each item in a list independently, with per-item error reporting.

URL-encode each item in a list independently using encodeURIComponent.