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Base64 Encoder/Decoder

Base64 Encoder/Decoder

Real-time two-way text encoding/decoding and image-to-Data-URI conversion!

Report
Plain Text (UTF-8):
Base64 Encoded:
Image to Base64
Data URI (Base64 Image):
📝
Step 1
Choose either the Text Encode/Decode tab or the Image to Base64 tab.
⚙️
Step 2
In text mode, convert both directions in real time. In image mode, upload or drag an image to get a Data URI.
✅
Step 3
Copy the result and use it directly in APIs, HTML, or CSS.
When would you use this?
Use it when you need to convert text, tokens, config values, or API responses to Base64, or convert images to Data URI for embedding in HTML/CSS.
What is the difference between Base64 and encryption?
Base64 is encoding, not encryption. Anyone with the string can decode it back, so it should not be used to protect sensitive data.
Why do I get garbled text or decode errors?
Common causes are non-standard Base64 input, extra characters in the string, or source content that is not UTF-8 text.
What are practical use cases for image to Data URI?
You can paste it directly into HTML src or CSS background-image. It is great for small icons and prototypes, but not ideal for large images.
Why does Base64 output become longer?
This is expected. Base64 uses more characters to represent the same bytes, so the output is usually about one-third larger.
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