Use this decoder when the input is known to use the named encoding or classical cipher and you need to recover its bytes, symbols, numbers, or text deterministically.

codes

Non-negative zigzag codes.

Decode zigzag (Protobuf varint signed) codes back to integers. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

values

Signed decoded integers.

n_neg

Number of negative values.

• Decoding cannot reliably identify an unknown format or repair arbitrary corruption. Alphabet variants, padding, whitespace, character encodings, byte order, framing, cipher keys, and malformed-input policies must match the producer.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Confirm the format from metadata or a specification, preserve the original input, and validate decoded length or checksums where available. Treat decoded untrusted content as data rather than executable markup or code.

• Gray Code Decoder

  Decode a reflected binary Gray code back to its integer value.

• Unsigned Varint Decoder

  Decode one unsigned LEB128 varint from a hexadecimal byte string, returning the exact integer as decimal text. Rejects trailing bytes and encodings beyond 64 bits.

• Bacon Cipher Decoder

  Decode five-symbol Bacon cipher groups back into letters A–Z.