Dev
Base64 Encoder / Decoder
Input
Enter plain text to convert into Base64.
All conversions happen locally in your browser.
Result
Output appears here after encoding or decoding.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text-converter encoding scheme that converts binary data into a sequence of printable ASCII characters. It is widely used to embed images in HTML/CSS, include binary attachments in JSON, and transfer data through text-only channels like email.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption. It only changes how data is represented — anyone can decode Base64-encoded data instantly without a key. Never use Base64 to protect sensitive information.
Why does Base64 output end with = signs?
Base64 encodes data in 3-byte groups. When the input length is not a multiple of 3, one or two padding characters (=) are appended to align the output to a 4-character boundary.