Convert text to Base64 and back instantly. UTF-8 safe — handles emoji and accents. Runs entirely in your browser.
Base64 is encoding, not encryption — it offers no secrecy.
What is a Base64 encoder? A Base64 tool converts data into a text-safe string of 64 printable characters, or converts that string back into the original text. This one works in both directions and supports any Unicode characters.
Base64 is a way of representing binary or text data using only 64 printable ASCII characters (A–Z, a–z, 0–9, + and /). It is commonly used to embed data in URLs, emails, JSON, and data URIs where only text-safe characters are allowed.
Paste your text and choose Encode to turn it into Base64, or paste Base64 and choose Decode to turn it back into readable text. This tool runs entirely in your browser and uses btoa and atob with UTF-8 handling so the result is correct for any characters.
No. Base64 is encoding, not encryption. Anyone can decode Base64 back to the original data with no key, so it provides no security or secrecy. Use it only for safe transport of data, never to protect sensitive information.
Yes. It is UTF-8 safe. It encodes via btoa(unescape(encodeURIComponent(text))) and decodes via decodeURIComponent(escape(atob(text))), so emoji, accents, and other non-ASCII characters convert correctly without corruption.