Base64 Codec

What is Base64 Encoding?

Base64 converts binary data into a text-safe format using 64 ASCII characters. This tool encodes plain text to Base64 and decodes Base64 back to text, with full Unicode support. Useful whenever you need to embed binary data in text-only formats like JSON, XML, or HTTP headers.

Common Use Cases

• Encoding credentials for HTTP Basic Auth headers
• Decoding Base64-encoded API responses or webhook payloads
• Embedding small files or images in JSON or data URIs
• Manually inspecting Base64 parts of a JWT token

How to Use

1. Choose Encode or Decode mode
2. Paste your text or Base64 string into the input
3. Copy the result or use Swap to reverse the operation