Hex to Base64 Converter
Convert hex-encoded bytes to Base64, or Base64 back to hex.
Every conversion runs locally in your browser. Nothing you enter here is sent to a server.
For informational and educational purposes only — not professional or technical advice, and not a substitute for consulting a qualified professional about your specific situation. TrueMeasureKit is not liable for decisions made based on these results. See our Terms of Service.
Two text encodings for the same bytes
Hex and Base64 both exist to represent arbitrary binary data as printable text, just at different densities. Hex uses 2 characters per byte (16 possible values per digit), while Base64 packs 3 bytes into 4 characters (64 possible values per digit) — about 33% more compact, which is why Base64 is the more common choice for embedding binary data in JSON, URLs, or emails, while hex remains popular for hashes, color codes, and anywhere byte-for-byte readability matters more than size.
Frequently asked questions
When would I need to convert between hex and Base64?
Common in cryptography and networking contexts — a hash or key is often generated as hex, but Base64 is more compact and common in contexts like JWTs, API tokens, or embedding binary data in text formats like JSON.