Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings — free, instant, no signup.
ℹ️ About this tool
Base64 Encoder / Decoder converts text to and from Base64 encoding — widely used in email attachments, data URLs, JWTs and API authentication headers. All encoding and decoding is performed locally in your browser — your data is never transmitted to any server, so sensitive strings remain completely private.