Base64 Encoder / Decoder
Encode plain text to Base64, or decode Base64 back to readable text. Runs entirely in your browser.
Plain text
Base64 output
What is Base64?
Base64 is a way of encoding binary or text data into a set of 64 printable characters (A–Z, a–z, 0–9, +, /). It's commonly used to embed data in places that only support text, like email attachments, URLs, or JSON payloads. Base64 is not encryption — it's reversible by anyone, so it shouldn't be used to hide sensitive information.