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Base64 Encoder & Decoder

Convert plain text to base64, base64 back to text, or encode files to Data URIs locally.

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Enter text or load sample data to see dynamic Base64 conversion.

Plain Text
Base64 Encoded

Understanding Base64 Encoding & Decoding

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. By translating values into 64 safe printable characters (A-Z, a-z, 0-9, +, /, and = padding), it allows binary information such as images, files, or key pairs to be embedded inside HTML scripts, CSS styles, XML sheets, or JSON payloads without causing parsing conflicts.

Developers frequently use Base64 to inline assets (like icons) directly inside templates to reduce HTTP request roundtrips, or to safely serialize keys. Our client-side Base64 converter offers safe processing with no servers in the loop, guaranteeing that private keys or sensitive payloads are never exposed.