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Base64 Encoder/Decoder
Advanced encoding/decoding with file support & batch processing
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Drop files here or click to upload
Support: TXT, JSON, CSV, XML, PDF, DOC (Max 10MB)
Drop image here or click to upload
Support: JPG, PNG, GIF, SVG, WebP
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🕐 Recent Conversions
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📚 What is Base64?
Base64 encoding converts binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). Used in emails, data URLs, and APIs.
💡 Use Cases
Embed images in HTML/CSS, encode email attachments, store binary data in JSON/XML, basic authentication headers.
⚠️ Note on Size
Base64 increases size by ~33%. Example: 100KB → ~133KB. Not recommended for large files.
🔒 Security
Base64 is NOT encryption - it's encoding! Anyone can decode it. Use encryption for sensitive data.