HEX to Base64 Converter
Convert hexadecimal strings to Base64 encoding instantly. Perfect for cryptographic applications and data transmission.
What is HEX to Base64 Converter?
The HEX to Base64 Converter transforms hexadecimal strings into Base64 encoded output. You paste a hex string (0-9, A-F), and the tool converts each pair of hex characters to a byte, then encodes the bytes as Base64. It handles spaces and dashes in the input automatically. All processing happens in the browser.
This tool parses the hex input into bytes (two hex characters per byte), then encodes those bytes to Base64 using the browser's btoa function. The input is case-insensitive and accepts optional spaces or dashes between hex pairs.
Key Features
- Instant hex to Base64 conversion
- Handles spaces and dashes in input
- Case-insensitive hex input
- Input validation with error messages
- Copy Base64 string to clipboard
- Quick example presets
- Runs in the browser with no uploads
- Lossless conversion
Common Use Cases
Converting SHA hash outputs
Convert a SHA-256 hash from hex to Base64 for use in an API that expects Base64 encoded digests.
Handling certificate data
Convert hex-encoded certificate fingerprints or key material to Base64 format.
Migrating between encoding formats
Translate data stored as hex into Base64 for a system that uses a different encoding.
Debugging binary data
Convert a hex dump segment to Base64 for comparison with Base64 encoded payloads.
How to Use This Tool
Paste the hex string
Enter the hexadecimal string in the input field. Spaces and dashes are tolerated.
Convert
Click Convert. The tool parses the hex and outputs the Base64 string.
Copy the result
Copy the Base64 output for use in your code or analysis.
Pro Tips
- 1
Hex strings use 0-9 and A-F (case-insensitive).
- 2
Each pair of hex characters represents one byte.
- 3
The Base64 output is shorter than the hex input for the same data.
- 4
For SHA-256, the input is 64 hex characters and the output is 44 Base64 characters.
Frequently Asked Questions
What is the difference between hex and Base64?
Hex uses 16 characters and represents each byte as 2 characters. Base64 uses 64 characters and represents 3 bytes as 4 characters. Base64 is more compact for the same data.
Can I convert SHA-256 hashes?
Yes. Paste a 64-character hex SHA-256 hash and get the 44-character Base64 equivalent.
Is the conversion lossless?
Yes. Both hex and Base64 represent the same binary data. Converting between them is lossless.
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is transmitted.
What if my hex string has an odd length?
The tool validates the input and shows an error if the hex string has an odd number of characters, since each byte requires two hex digits.