Convert text or files to Base64 and back, instantly. Everything runs in your browser — nothing is uploaded.
Input: 0 B
Output: 0 B
Input: 0 B
Output: 0 B
Conversion happens instantly as you type, entirely on your device. Files and text are never uploaded anywhere.
This is the most common misunderstanding about Base64: it's an encoding, not a security measure. Anyone can decode Base64 instantly — it's not scrambled data, it's just text represented in a different character set (so binary data like images can be safely embedded in text formats like JSON or HTML). If you need to protect data, Base64 encoding it does nothing for security. It's used for compatibility, not confidentiality.
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