Decision instrument
Base64 Encoder/Decoder
Encode and decode Base64
Your inputs
Adjust the fields and review the result in this workbench.
Interpretation
How Base64 Encoding and Decoding works
The Base64 Encoder/Decoder converts data between its original form and Base64 representation. Base64 encoding transforms binary data into ASCII text using a 64-character alphabet, making it safe for transmission through text-based protocols like email, JSON, and HTML.
Example
Key features
A realistic example to show how this tool can support an actual decision.
Formula
Encoded size = 4 * ceil(input bytes / 3) \u2014 approximately 133% of original size
- Encode text or files to Base64 format instantly
- Decode Base64 strings back to their original content
- Support for UTF-8 text and binary file encoding
- One-click copy for quick integration into code or APIs
Avoid mistakes
Common mistakes
A few things that can lead to misleading results or poor decisions.
Base64 encoding increases data size by approximately 33%. Use it for embedding small images in CSS or HTML, but for larger files, consider direct file hosting instead.
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