What is Hex vs Base64?

Hex (Base16) uses 16 symbols (0-9, A-F) and takes 2 characters per byte. Base64 uses 64 symbols (A-Z, a-z, 0-9, +, /) and is approx. 33% more compact than Hex.

Why is my Hex input invalid?

Hex strings must only contain 0-9, A-F. They must also have an EVEN length (e.g., 'A1' is 1 byte, but 'A' is incomplete half-byte).

Can I convert images?

Yes! If you have the Hex dump of an image file (e.g. from a hex editor), converting it to Base64 allows you to use it in a Data URI.

Absolutely. It runs locally in your web browser. We never see, store, or transmit your input data.

Does it handle '0x' prefix?

Yes, just click the 'Clean' button to automatically strip '0x' prefixes, spaces, and colons from your input.

What happens with invalid characters?

The tool will show a red error alerts if it detects non-hex characters (like 'G' or 'Z') in Hex mode.

Hex to Base64

Hex to Base64 Overview

Convert Hex to Base64 & Vice Versa

Hex to Base64 Converter is a professional-grade developer utility designed to translate binary data between Hexadecimal (Base16) and Base64 representations. Hex strings are commonly used to represent binary keys, hashes, and colors, while Base64 is the standard for encoding binary data in text-based protocols like email and JSON. Developers often need to switch between these formats when debugging cryptographic signatures, decoding API tokens, or analyzing binary exploits. This tool offers instant, bi-directional conversion with built-in data cleaning. It automatically removes common delimiters like spaces, colons (:), and '0x' prefixes, ensuring your copy-pasted data works immediately. It runs entirely in your browser using JavaScript's native TypedArrays, guaranteeing that your sensitive API keys, private keys, and binary dumps remain 100% private and are never sent to any server.

How to Use Hex to Base64

Choose 'Hex to Base64' or 'Base64 to Hex' mode.
Paste your string (e.g., '48 65 6c 6c 6f').
Click 'Clean' to remove spaces or '0x' prefixes if needed.
The result appears instantly in the output box.
Click 'COPY RESULT' to save it to your clipboard.

Frequently Asked Questions

What is Hex vs Base64?: Hex (Base16) uses 16 symbols (0-9, A-F) and takes 2 characters per byte. Base64 uses 64 symbols (A-Z, a-z, 0-9, +, /) and is approx. 33% more compact than Hex.
Why is my Hex input invalid?: Hex strings must only contain 0-9, A-F. They must also have an EVEN length (e.g., 'A1' is 1 byte, but 'A' is incomplete half-byte).
Can I convert images?: Yes! If you have the Hex dump of an image file (e.g. from a hex editor), converting it to Base64 allows you to use it in a Data URI.
Is this tool secure?: Absolutely. It runs locally in your web browser. We never see, store, or transmit your input data.
Does it handle '0x' prefix?: Yes, just click the 'Clean' button to automatically strip '0x' prefixes, spaces, and colons from your input.
What happens with invalid characters?: The tool will show a red error alerts if it detects non-hex characters (like 'G' or 'Z') in Hex mode.

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