Base64 Encoder / Decoder

Why use Base64?

Base64 encodes binary or text data into a safe ASCII string. Common uses include embedding images in HTML/CSS, transmitting data in JSON APIs, storing simple data in URL parameters, and handling email attachments.

Quick tips

• Use Encode to turn plain text into a Base64 string.
• Use Decode to read a Base64 string back to plain text.
• Choose UTF-8 for Unicode text (recommended), or Latin-1 for legacy encoding.
• Paste a whole data URL like data:image/png;base64,... to decode the Base64 part.

Is my data private?

Yes. Base64 encoding and decoding happens entirely in your browser. TinyToolbox does not transmit, store, or log the content you paste.