Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text. Paste your content and convert instantly.
How to Use
Paste your text in the input area and click Encode to convert it to Base64, or paste a Base64 string and click Decode to convert it back to plain text. Use the Copy button to copy the result to your clipboard.
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It is commonly used for embedding images in HTML/CSS, encoding email attachments (MIME), transmitting data in URLs and APIs, and storing binary data in JSON or XML. Each Base64 character represents 6 bits of data, so encoded output is approximately 33% larger than the original.