Base64 to Hex Converter

Convert between Base64 and hexadecimal representations. Supports both directions with instant conversion.

Last Updated: September 2026
100% Client-Side — Your data never leaves your device

Why this tool is safe

Your data never leaves your device — everything runs in your browser.

No server uploads. Other tools send your files to their servers. Ours don't.
Zero tracking of content. We never see, store, or log anything you convert.
Works offline. Once loaded, the tool works without an internet connection.
No account required. Instantly use all tools completely free without signing up.

Base64 to Hex in Code

Convert between Base64 and hexadecimal in your language.

Python
import base64
import binascii

# Base64 → Hex
b64 = "SGVsbG8="
raw = base64.b64decode(b64)
hex_str = binascii.hexlify(raw).decode()
print(hex_str)  # 48656c6c6f

# Hex → Base64
hex_str = "48656c6c6f"
raw = bytes.fromhex(hex_str)
b64 = base64.b64encode(raw).decode()
print(b64)  # SGVsbG8=

# One-liners
b64_to_hex = lambda s: base64.b64decode(s).hex()
hex_to_b64 = lambda s: base64.b64encode(bytes.fromhex(s)).decode()

print(b64_to_hex("SGVsbG8="))  # 48656c6c6f

Frequently Asked Questions

Search below or browse through our most commonly asked questions.

Hexadecimal (Hex) uses 16 characters (0-9 and A-F) to represent binary data. It's heavily used in cryptography and computer networking.
Base64 is much more space-efficient. Hex increases data size by 100%, whereas Base64 only increases it by 33%.

Related Tools

Base64 Converter

Encode text to Base64 or decode Base64 to text — all in one tool

Base64 to Binary

Convert Base64 to 8-bit binary representation and binary back to Base64

Base64 to ASCII

Decode Base64 to text with character-by-character ASCII breakdown

Base64 Validator

Validate Base64 strings with detailed character set, padding, and length analysis