Base64 Encoder/Decoder
Encode text to Base64 and decode Base64 back to readable text. Works with standard Base64 and URL-safe variants. Quick way to embed data in URLs or decode API responses.
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How to Use This Tool
- Select 'Encode' to convert text to Base64, or 'Decode' to convert Base64 back to text.
- Paste your text or Base64 string into the input field.
- View the converted result instantly in the output panel.
- Copy the result to your clipboard with one click.
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Frequently Asked Questions
What is Base64 encoding?
Base64 is a method of encoding binary data into ASCII text characters. It's commonly used to embed images in HTML/CSS, encode email attachments, and safely transmit binary data over text-based protocols like HTTP and JSON.
How do I decode a Base64 string?
Simply select the 'Decode' mode, paste your Base64 string into the input field, and the decoded text will appear instantly in the output panel. The tool handles multi-line Base64 strings automatically.
Is there a limit to how much text I can encode?
There is no practical limit. You can encode or decode text of any length directly in your browser. Processing speed depends on your device's capabilities.
Is my data secure when using this tool?
Yes. All encoding and decoding happens locally in your browser. No data is sent to any server, ensuring your information remains private.
What is Base64 encoding used for?
Base64 encoding converts binary data into ASCII text format. It is commonly used in data URLs, email attachments (MIME), encoding images in CSS/HTML, and safely transmitting binary data in text-based protocols.