Free Online Tool - 100% Client-Side Processing
Encode text to Base64 or decode Base64 strings back to plain text instantly. Essential for web developers, API developers, and anyone working with data encoding, email attachments, or data URLs. Base64 encoding is widely used for transmitting binary data over text-based protocols.
Our tool handles text encoding, file data, and supports both standard Base64 and URL-safe Base64 encoding. Whether you're embedding images in HTML, working with JWT tokens, encoding API credentials, or debugging Base64-encoded data, this tool provides instant and accurate results.
Perfect for web developers, backend engineers, security professionals, and anyone working with APIs, authentication systems, or data transmission protocols that require Base64 encoding.
Base64 encoding converts binary data into ASCII text format using 64 printable characters. It's commonly used for transmitting data over text-based protocols, embedding images in HTML/CSS, and encoding credentials in HTTP headers.
1. Paste your text or Base64 string into the input field
2. Click "Encode to Base64" or "Decode from Base64"
3. Copy the result from the output field
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