Encode plain text to Base64 or decode Base64 back to text. All done in your browser — nothing sent to server.
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How to Use the Base64 Encoder/Decoder
Paste your text into the input box.
Click Encode to convert to Base64, or Decode to convert Base64 back to plain text.
Copy the result.
Frequently Asked Questions
Base64 is used to encode binary data (like images or files) as plain text for safe transmission over systems that handle text only, such as email or HTTP headers.
No. Base64 is encoding, not encryption. Anyone can decode it instantly. Do not use it to protect sensitive information.
This tool encodes text input. For converting image files to Base64 strings, use a dedicated image-to-Base64 converter.