Base64 Encoder / Decoder
Encode to or decode from Base64 format online.
On-Device
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About Base64 Encoder / Decoder
The Base64 Encoder / Decoder is a fast, offline-capable utility that securely converts text to and from Base64 encoding. Built for developers, it supports full Unicode characters and emojis.
How to use Base64 Encoder / Decoder
- Select your desired mode: 'Encode' or 'Decode'.
- Enter your plain text or Base64 string into the input area.
- The output is generated instantly in real-time.
- Use the swap button to quickly reverse the operation.
Use cases for Base64 Encoder / Decoder
- Encoding credentials for Basic Authentication headers.
- Embedding small images or assets directly into CSS/HTML.
- Decoding Base64 payloads from JWT tokens or API responses.