Free online Base64 encoder and decoder. Encode and decode text or files to/from Base64. Support standard and URL-safe Base64 formats. Perfect for data transmission, embedding images, API requests, and encoding binary data. All processing happens locally in browser, completely secure and private.
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Privacy & Security
All encoding and decoding operations are performed locally in your browser. No data is transmitted to any server. Your files and text never leave your device.
Important Notes
- •Base64 is encoding, not encryption - it doesn't provide security
- •Base64 increases size by ~33% compared to original data
- •Use URL-safe format when including Base64 in URLs or file names
- •Large files may take time to process in the browser