TASK

Convert hexadecimal string to Base64 and back

Translate between hex dumps and Base64 representations of the same binary data without losing bytes or introducing padding errors.

1

Hex and Base64 are two text representations of the same bytes. Hex uses two characters per byte (0-9a-f); Base64 packs 6 bits per character. Converting between them is a two-step decode-then-encode through the raw bytes.
2

Hex Decoder →
Paste the hex string (e.g. '48656c6c6f') to recover the raw bytes.
3

Base64 Encoder →
Feed the decoded bytes into Base64 encode to get the Base64 form ('SGVsbG8=').
4

hex-encode → hex-decode
View recipe Open in Toolchain

Use the verify chain to confirm that hex → bytes → hex round-trips losslessly, catching any byte-order or case-sensitivity mistakes.

Frequently asked questions

Does uppercase vs lowercase hex matter?: Both 0xAB and 0xab represent the same byte. The decoder accepts either, but the encoder outputs lowercase by convention. Round-tripping preserves the value regardless of case.
Why is my Base64 output longer than the hex input?: Base64 is more compact: it uses 1.33 characters per byte versus hex's 2 characters per byte. So the Base64 form should be shorter, not longer — if it is longer, you likely encoded the hex string as text rather than decoding it to bytes first.

Workflows that solve this

Convert Ascii85 to Base64

Decode Ascii85 and re-encode as Base64 for wider compatibility.

Convert Base16 to Base32

Decode hex and re-encode as Base32 for DNS-safe representation.

Convert Base2048 to Base64

Decode Base2048 (emoji) and re-encode as Base64 for standard transport.

Convert Base32 to Base64

Decode a Base32-encoded string into raw bytes and re-encode as Base64 for more compact representation.

Convert Base32 to Hex

Decode Base32 and re-encode as hex for debugging.

Convert Base58 to Base64

Decode Base58 and re-encode as Base64 for standard compatibility.

Base64 encode then decode round-trip

Encode text to Base64 and decode it back to verify the round-trip preserves the original data.

Convert Base64 to Hex

Decode a Base64 string into raw bytes and re-encode it as hexadecimal for inspection or interop.

Convert Binary to Hex

Decode a binary (base-2) string into its byte value and re-encode as hexadecimal.

Blowfish Encrypt then Base64

Blowfish encrypt then Base64-encode for text-safe transport.

ChaCha20 Encrypt then Hex

ChaCha20 encrypt then hex-encode the ciphertext.

DES Encrypt then Base64

DES encrypt then Base64-encode for legacy compatibility.

Encode a JSON payload for URL transport

Prepare a JSON document for a URL parameter: pretty-print, Base64-encode, then percent-encode — the exact inverse of the nested-parameter decode chain.

AES encrypt then Base64 encode

Encrypt plaintext with AES and encode the ciphertext as Base64 for text-safe transport.

Hash content and encode as Base64

Compute a hash of the input and encode the hash digest as Base64 for compact transport.

Hex encode then decode round-trip

Encode text to hexadecimal and decode it back to verify the round-trip preserves the original data.

Hex-encode text and analyze

Convert text to its hexadecimal representation then compute character statistics on the hex output.

Convert Hex to Base32

Decode hex and re-encode as Base32 for DNS-safe use.

Convert Hex to Base64

Decode a hexadecimal string into raw bytes and re-encode it as Base64 for compact transport.

HMAC Sign then Base64 Encode

Generate HMAC signature then Base64-encode for API auth headers.

Morse Encode and Base64 Transport

Encode text as Morse code then Base64-encode for digital transport.

Convert Multibase to Hex

Decode multibase and re-encode as plain hex.

Convert Octal to Hex

Decode octal and re-encode as hex for compact representation.

RC4 Encrypt then Base64

RC4 encrypt then Base64-encode for transport.

Reverse text and show hex encoding

Reverse a string then inspect its hexadecimal representation — useful for debugging byte-order issues and encoding puzzles.

RIPEMD-160 Hash then Base64

Compute RIPEMD-160 hash then Base64-encode for transport.

SHA-512 Hash then Hex Encode

Compute SHA-512 hash then encode as hex for readability.

Shuffle Text and Base64 Encode

Shuffle text characters then Base64-encode the result.

Unicode Escape and Base64 Encode

Unicode-escape text then Base64-encode for ASCII-safe transport.

Decode URL and show hex bytes

Percent-decode a URL-encoded string then view its hexadecimal byte representation for low-level analysis.

URL Encode then Base64 Double Encode

URL-encode then Base64-encode for double encoding in API payloads.

Encode a text payload for URL transport

Percent-encode text then show its hex representation for safe URL parameter transport.

UUencode then Base64

UUencode text then Base64-encode the result for double encoding.

Generate UUID and Base64 Encode

Generate a UUID then Base64-encode it for compact storage.

XXencode then Hex

XXencode text then hex-encode the result.

Learn more

Want to understand why?

How to Convert Hex to Binary

Convert hexadecimal strings to binary representation and understand the relationship between the two.

How to Implement DNSSEC

Deploy DNS Security Extensions (DNSSEC) to authenticate DNS responses with cryptographic signatures, preventing DNS spoofing and cache poisoning.

Base16 is hexadecimal encoding: every 4 bits map to one hexadecimal character (0-9, A-F), making it the simplest member of the Base family defined by RFC 4648.

Hexadecimal (hex) is the base-16 numeral system, using 0-9 and A-F for 0-15; it is one of the most common radix notations in computing.

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