base64-encode-decode
Code & Data Tools
Base64 Encode & Decode
Encode text to Base64 or decode a Base64 string in your browser.
Use UTF-8 text unless the tool specifically asks for encoded data or a file. Your input stays in this page during the text conversion; some specialized pages load libraries from a CDN.
About Base64 Encode & Decode
Base64 represents bytes using a printable text alphabet. It is commonly used to move data through text-based formats, but it does not encrypt information or hide it from readers.
How to use Base64 Encode & Decode
- Choose Encode or Decode.
- Paste plain text or a Base64 value into the input box.
- Run the conversion and copy or download the result.
Helpful tips
Keep an unchanged copy of important input before making transformations. Test the output in the target application or validator, especially before using generated code, configuration, links, or converted data in production. The tool does not execute the code you paste.
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Frequently asked questions about Base64 Encode & Decode
What does Base64 Encode & Decode do?
Base64 represents bytes using a printable text alphabet. It is commonly used to move data through text-based formats, but it does not encrypt information or hide it from readers.
How do I use Base64 Encode & Decode online?
Enter your input, select any relevant settings, then run the tool. Review the result before copying or downloading it.
Is Base64 encryption?
No. Base64 is a reversible encoding scheme, not encryption. Anyone who has the encoded string can decode it.
Can this Base64 tool handle Unicode text?
The page encodes and decodes UTF-8 text, including many non-English characters and emoji when input is valid.
Why does Base64 decoding show an error?
The input may contain invalid characters, missing padding, or data that is not a Base64 string. Check the full value before decoding.
For complex code or data files, validate the output with the official parser, formatter, compiler, or application used in your workflow.