Base64 Encoder & Decoder
Encode plain text strings to Base64 format and decode back.
About This Tool
Base64 is a way of representing binary or text data using only 64 printable characters, commonly used to embed data in JSON, URLs, or email attachments. This tool converts plain text to Base64 or decodes a Base64 string back to its original text, instantly and locally.
How to Use Base64 Encoder & Decoder
- Paste plain text and click "Encode Base64", or paste a Base64 string and click "Decode Base64".
- The result appears in the output box below.
- Copy the output with one click.
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption — anyone can decode it instantly. Never use it to hide sensitive data.
What happens if I paste invalid Base64 to decode?
The tool shows an error message instead of garbled output, so you know the input wasn't valid Base64.