Choose encode or decode and paste your text.
Formula
Base64 turns every 3 bytes into 4 printable characters
Worked example
“Hello AllCalculs!” encodes to SGVsbG8gQWxsQ2FsY3VscyE=.
Frequently asked questions
Is Base64 encryption?
No. Anyone can decode it; it only makes binary data safe to transport as text.
Why does the output end with =?
Padding fills the last group of 4 characters.
Does it support accents?
Yes, text is encoded as UTF-8 first.
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Results are estimates for information only. Check important figures with a professional.