Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to readable UTF-8 text – directly in ToolkitOne, without external transmission.

Processing happens directly in ToolkitOne. Your input is not transmitted to external services.

Understanding and using Base64

What is Base64?

Base64 is an encoding scheme that represents text and binary data as an ASCII string.

Is Base64 encryption?

No. Base64 is encoding, not encryption. Content can be reversed without a password.

What is Base64 used for?

Typical uses include APIs, config files, email content, technical logs and transporting short text data.

How does encoding work?

Text is interpreted as UTF-8 bytes and then converted into Base64 characters.

How does decoding work?

Base64 characters are converted back into bytes and then into UTF-8 text.

Are umlauts and emojis supported?

Yes. The tool uses UTF-8 and supports umlauts, emojis and non-Latin scripts.

Can Base64 protect sensitive data?

No. Sensitive data should not be protected by Base64 alone.

Is input stored?

No. Processing happens locally in your browser and content is not sent to external services.

Related tools

Frequently asked questions about Base64

Is Base64 safe for passwords?

No. Base64 does not protect against unauthorized reading.

Does the tool support line breaks in Base64?

Yes. Line breaks and spaces are ignored when decoding.

What is Base64URL?

Base64URL uses - and _ instead of + and / and may omit padding.

Can I encode spaces?

Yes. Spaces and line breaks are preserved when encoding.

What happens with invalid Base64?

The tool shows a clear error message and keeps your input.