Base64 Encode & Decode
Convert strings or raw files to Base64 format and vice versa instantly.
Input String / File
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Base64 Render Output
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What is a Base64?
A Base64 Encoder/Decoder converts text strings to and from Base64 encoding — a binary-to-text format that represents binary data as printable ASCII characters. It is commonly used for embedding images in HTML/CSS, encoding API authentication credentials, transmitting binary data in JSON, and email attachments (MIME).
How to Use This Tool
- Type or paste your plain text to encode it to Base64.
- Or paste a Base64 string to decode it back to plain text.
- The conversion happens in real time as you type.
- Click Copy to copy the encoded/decoded result.
- Supports full UTF-8 character encoding.
Key Features
- Real-time Base64 encoding and decoding
- Full UTF-8 and Unicode support
- One-click copy to clipboard
- Clean, distraction-free interface
- No file size limits — processes in-browser
- Instant error feedback for invalid Base64 input