Base64 Encode
Encode text or data to Base64 instantly, right in your browser.
Convert plain text into Base64 — the text-safe encoding used in data URLs, email attachments (MIME), HTTP basic-auth headers, and many API tokens. Base64 packs any content into a compact string of letters, digits, and a couple of symbols that can travel safely through systems built only for plain text. Full Unicode is supported here, so emoji, accents, and non-Latin scripts encode correctly via UTF-8.
How to use the Base64 Encode
- Type or paste the text you want to encode.
- The Base64 output appears instantly below.
- Copy the encoded string with the Copy button.
Frequently asked questions
What is Base64 used for?
It packs binary or text data into a plain-ASCII string that survives systems which only handle text, such as URLs, JSON and email.
Does it handle emoji and accents?
Yes. Input is UTF-8 encoded first, so any Unicode character is preserved.
Is Base64 the same as encryption?
No. Base64 is reversible encoding, not encryption — anyone can decode it, so never rely on it to hide secrets.
Why is the output longer than my input?
Base64 represents every 3 bytes as 4 characters, so encoded text is about a third larger. That is expected.