Base64 Converter
How to use this Base64 converter
- Choose "Encode" or "Decode".
- Paste your text into the input box.
- The result updates instantly on the right.
What is Base64?
Base64 is a way of representing binary data using only 64 printable characters. It is commonly used to embed images in CSS/HTML, send binary data over text-based protocols like email (MIME), and store data in JSON or XML safely.
Is this safe to use for sensitive data?
Base64 is encoding, not encryption. Anyone can decode it instantly, so never use it to protect passwords or secrets. This tool runs entirely in your browser; nothing you type is sent to any server.
Why does Base64 text look longer than the original?
Base64 adds about 33% overhead compared to raw binary, since it encodes every 3 bytes of input as 4 text characters.
Can this encode emojis and non-English text?
Yes, this tool handles full Unicode text correctly, including emojis and accented characters, not just basic ASCII.