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Base64 Encoder/Decoder
Encode and decode Base64 strings online for free. Convert text, images, or files to Base64 format instantly in your browser.
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ℹ️ About Base64
Encode text to Base64 or decode Base64 to text. Base64 encoding is commonly used for embedding data in HTML, sending data via URLs, and storing binary data as text.
💡 Use Cases
Encoding images for HTML embedding
Decoding Base64 data from APIs
Creating data URLs
Encoding credentials for authentication
Storing binary data in JSON
📋 How to Use
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Paste text to encode or Base64 to decode
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Select Encode or Decode mode
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View the result instantly
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Copy the result to clipboard
💎 Pro Tips
- Use Base64 for embedding small images directly in HTML
- Remember that Base64 increases data size by about 33%
- For file uploads, use the file input option
❓ Frequently Asked Questions
Base64 converts binary data to ASCII text using 64 printable characters. It's commonly used for transmitting data safely.
Base64 uses 4 characters to represent 3 bytes, resulting in about 33% size increase.
No, Base64 is encoding, not encryption. It's easily reversible and provides no security.