Base64 Image/Text Converter
Encode plain UTF-8 text or image files into Base64 strings and Data URIs for inline HTML/CSS embedding, or decode existing Base64 payloads back into readable text and downloadable images.
How to Use Base64 Image/Text Converter
- 1Choose between 'Text Base64' mode and 'Image to Base64' mode.
- 2In Text mode, paste plain text to encode into Base64 or paste a Base64 string to decode back into UTF-8 text.
- 3In Image mode, drop any image file to generate both a raw Base64 string and a ready-to-use HTML <img> or CSS url() Data URI.
- 4Copy the output string to your clipboard with one click.
Frequently Asked Questions
Does Base64 encoding encrypt or secure my data?
No. Base64 is a binary-to-text encoding scheme, not encryption. Anyone can decode a Base64 string back to its original content without a key.
Why does Base64 increase file size by about 33%?
Base64 represents every 3 bytes (24 bits) of binary data using 4 ASCII characters (32 bits), adding roughly 33% overhead to the payload size.
When should I inline an image as a Base64 Data URI?
Base64 Data URIs work best for tiny icons, placeholders, or single-file HTML emails under 4 KB where eliminating an extra HTTP request outweighs the 33% size increase.
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