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Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 back to readable text.

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Encode and Decode Base64 Online

Convert plain text into Base64 or decode Base64 data back into readable UTF-8 text directly in your browser.

What is Base64?

Base64 is an encoding format that represents binary or text data using ASCII characters. It is commonly used in APIs, data URLs, configuration files and other software systems.

Base64 is not encryption

Base64 only changes how data is represented. It does not protect passwords, private information or other sensitive data from being read.

UTF-8 support

HandyKitz uses UTF-8 when converting text, so Unicode characters, accented letters and emoji can be encoded and decoded correctly.

Private browser-based processing

Encoding and decoding happen locally in your browser. The text you enter does not need to be uploaded to HandyKitz.

Practical example

Base64 represents data as text for transport or storage. Anyone who has the encoded text can decode it; encoding does not make a secret safe to share.

Encode Hello to get SGVsbG8=. Decoding that value returns Hello, with the same capital H and no extra line break.

Frequently asked questions

Why can't I decode an image into readable text?

This decoder expects decoded bytes to be valid UTF-8 text. Binary image or archive data can fail that check even when its Base64 encoding is valid.

Can I paste Base64URL text with missing padding?

The decoder normalizes - and _ and adds missing padding where possible. Remove a data-URL prefix such as data:text/plain;base64, before decoding.

Why is the encoded result longer than the source?

Base64 represents three bytes with four characters, plus possible padding. Accented text may also use several UTF-8 bytes per character.