Utilyx
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Base64 Encoder & Decoder Online

Encode plain text and files into standard Base64 representation or decode Base64 data back to readable UTF-8 text.

Plain Text Input
Base64 Output
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How to Use Base64 Encoder & Decoder

1

Choose Mode

Select "Encode" (Text to Base64) or "Decode" (Base64 to Text).

2

Input Data

Paste your string or upload a file to convert.

3

Copy or Download Result

Copy the encoded/decoded result or download it directly.

Key Features & Benefits

Full UTF-8 Unicode support for multilingual text encoding

Base64 validation with error reporting on malformed input

Bidirectional live conversion switch

One-click clipboard copy and file download

Frequently Asked Questions

Does this handle special characters and non-English scripts?

Yes! Utilyx uses proper UTF-8 byte encoding to support emojis, accented letters, and non-Latin alphabets without corruption.

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