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Base64 to Hexadecimal

Paste a Base64 string and convert it to hexadecimal — each decoded byte shown as a 2-digit hex value.

Last updated: May 29, 2026

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What is Base64 to Hexadecimal?

Base64 to Hexadecimal decodes a Base64-encoded string to its underlying bytes and then represents each byte as a 2-digit hexadecimal value (e.g., 48 65 6C 6C 6F). This is a common operation in debugging, cryptography, and network analysis when you need to inspect the raw bytes behind an encoded value.

How to Use Base64 to Hexadecimal

1

Paste your Base64 string into the input box.

2

Click "Convert to Hex".

3

Toggle uppercase or lowercase as needed.

4

Copy the hex output.

Common Use Cases

  • Inspecting Base64-encoded cryptographic hashes or keys in hex format.
  • Debugging encoded network payloads at the byte level.
  • Comparing Base64-encoded values against known hex signatures.

Example Input and Output

Decoding "Hello" (Base64: SGVsbG8=) to hex.

Base64
SGVsbG8=
Hex bytes
48 65 6C 6C 6F

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Frequently Asked Questions

What is the difference between Base64 and hex?

Both encode binary data as text. Hex uses 2 characters per byte (16 symbols: 0-9, A-F). Base64 uses ~1.33 characters per byte (64 symbols), making it ~25% more compact.

Can I get the output without spaces?

Currently the output uses space-separated values for readability. Copy the result and remove spaces with a text editor or the Remove Whitespace tool if you need a contiguous hex string.

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