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Encode, decode, and parse URL components.
Encode text to Base64 and Base64URL, and decode Base64 back to readable text with a hex view of the raw bytes — both directions, in your browser.
Base64, base64url, hex, percent-encoding, and HTML entities in one pass.
Convert hexadecimal to readable UTF-8 text and text to hex, tolerant of spaces and colons — both directions in your browser.
Escape text to HTML entities or decode entities back, to reason about XSS and safe output encoding.
Percent-encode text for safe use in URLs and query strings, and decode percent-encoded values back to plain text — including a second pass that exposes double-encoding.
Encode and decode Base64 text and files.