Development guide
JSON vs Base64 vs URL Encoding
JSON, Base64, and URL encoding are often used together, but they solve completely different problems. Understanding the difference is key to debugging APIs, logs, and data pipelines effectively.
Quick comparison
| Concept | What it is | Purpose | Reversible |
|---|---|---|---|
| JSON | Data format | Structure and transport | Yes |
| Base64 | Encoding | Text-safe representation | Yes |
| URL Encoding | Encoding | Safe URLs | Yes |
1. JSON
JSON is a structured data format used to represent objects and arrays. It is human-readable and widely used in APIs.
2. Base64
Base64 is an encoding method used to convert data into a text-safe format. It is commonly used inside JSON or APIs.
3. URL Encoding
URL encoding ensures that special characters can safely be included in URLs without breaking them.
How they work together (real example)
A common pattern is: JSON → Base64 → URL Encoding.
- JSON structures the data
- Base64 encodes it safely
- URL encoding makes it safe for transport in URLs
Which one should you use?
- Use JSON → for structured data
- Use Base64 → for safe transport
- Use URL encoding → for URLs