Base64 vs Hex Encoding: Which Should You Use?
1 min read
When handling binary data, developers often choose between Base64 and Hex encoding. Both are widely used — but they serve different purposes.
🔢 What is Hex Encoding?
Hex encoding represents data as a series of hexadecimal characters (0–9, A–F). Each byte becomes two hex characters. Example:
Text: Hi
Hex: 4869🔤 What is Base64 Encoding?
Base64 maps binary data into 64 characters, resulting in shorter strings compared to Hex. Example:
Text: Hi
Base64: SGk=📊 Base64 vs Hex: Comparison Table
| Feature | Base64 | Hex |
|---|---|---|
| Output Size | ~33% larger than raw | 2x larger than raw |
| Readability | Less human-readable | Very readable |
| Speed | Efficient | Simple, but larger data |
| Use Cases | Email, JWT, APIs | Debugging, low-level dev |
✅ Which One Should You Use?
- Use Base64 when transmitting binary data over text protocols (email, JSON, JWT).
- Use Hex when debugging or displaying binary in a human-friendly way.
🚀 Try Encoding
Convert strings instantly with our Base64 Encoder / Decoder. For hash outputs, check our SHA Generator which outputs in Hex.
🔗 Related Tools
Both encodings have their place. Choosing the right one depends on whether you prioritize size, readability, or compatibility.