Base64 Encoder & Decoder
Encode and decode text or files to and from Base64 format with full UTF-8 support.
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Frequently Asked Questions
Does this Base64 tool properly support emojis and foreign languages? ↓
Yes. Our converter uses full UTF-8 byte encoding and decoding, preventing character corruption with emojis, symbols, and non-ASCII character sets.
Can I convert images and binary files to Base64 data URIs? ↓
Yes! You can convert any file into a standard Base64 string or an HTML/CSS ready Data URI (e.g. data:image/png;base64,...), or convert a Base64 string back into a downloadable file.
Is my text or file sent to a backend server? ↓
Never. All encoding and decoding runs 100% inside your browser using client-side JavaScript. Your text and documents remain completely private.
Is there any limit on string length? ↓
There are no server limits or caps. It is bounded only by your browser memory.