Encode plain text to Base64, or decode a Base64 string back to text, instantly.
Useful when you need to embed content in JSON, build data URIs, inspect an Authorization header, or decode a value you found in a log or configuration file.
Encoding and decoding happen in your browser, so tokens, headers, and credentials you paste here are never transmitted.
Frequently Asked Questions
What is Base64?
A way to represent text or binary data using 64 printable characters, so it can be carried through systems that only accept plain text.
Is Base64 encryption?
No. It is encoding, not security — anyone can reverse it. Never treat Base64 as a way to hide a secret.
Do you store what I paste?
No. Conversion is entirely client-side.