Instantly encode and decode text using Base64 format. Our tool shows you exactly how your input transforms through the encoding process, with real examples and explanations suitable for developers, students, and security researchers.
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Open Text Encoder/Decoder →Base64 encoding converts binary data to ASCII text using 64 printable characters. It is widely used in email attachments (MIME), data URIs, and API authentication (Basic Auth). Base64 increases data size by approximately 33% but guarantees safe transmission through text-only channels. Our tool handles both standard and URL-safe Base64 variants.
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