How to Use the Base64 Encoder & Decoder
Switch to Encode and type any text to see its Base64 representation, or switch to Decode and paste Base64 text to recover the original — both directions update instantly, and switching modes carries your current result over as the new input, so you can immediately verify a round-trip conversion.
This tool handles both directions of the conversion using your browser's own built-in encoding functions.
Encoding text for a text-only context
As covered in the why-Base64-exists guide, this is most useful when you need to embed content inside a system that only reliably handles plain text, like a JSON field or certain configuration files.
Remembering what Base64 doesn't do
As covered in the not-encryption guide, treat anything encoded here as fully recoverable by anyone with access to it — never use this (or any Base64 tool) as a way to actually hide or protect sensitive information.