Base64 Encoder & Decoder — UTF-8 Safe Text Converter

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Base64 Encoder

Encode UTF-8 strings and binary text safely into Base64

100% Client-Side Only

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OVERVIEW

UTF-8 Safe Base64 Encoding & Decoding

Encoding to Base64

Type or paste any text or UTF-8 string into the input box. The tool converts the raw bytes into a standard Base64 representation with proper padding.

Decoding from Base64

Paste a valid Base64 string to restore the original human-readable text. If the input contains invalid characters, a clear error message is displayed.

FAQ

Base64 Questions & Answers

What is Base64 encoding?

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, +, /). It is widely used in email, data URIs, and authentication tokens.

Does this tool handle emojis and Unicode characters?

Yes. Traditional browser btoa() functions fail on non-ASCII characters. Our tool uses UTF-8 byte array processing with the Web TextEncoder and TextDecoder APIs, ensuring symbols, accented characters, and emojis encode and decode accurately.