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ProWebTools v2.0
Free Online Developer Utilities
Standard

Online Base64 Encoder & Decoder

Encode strings into RFC 4648 Base64 representation or decode Base64 payloads back to readable UTF-8 text.

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Understanding Base64 Encoding in Web Engineering

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using 64 printable characters (A-Z, a-z, 0-9, +, /).

Commonly used for HTTP Basic Authentication credentials, embedding inline images (Data URIs), and transmitting binary attachments over email.

Frequently Asked Questions

Does this handle UTF-8 characters and emojis correctly?

Yes. Our converter uses UTF-8 byte encoding before Base64 transformation, preventing character corruption with emojis and non-Latin alphabets.

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