About Base64
Base64 rewrites any data using 64 safe characters (A–Z, a–z, 0–9, + and /) so it can travel through systems that only expect text — for example inside data URIs, JSON, or email. It is an encoding, not encryption: anyone can decode it, so never use it to hide secrets.
Text is handled as UTF-8, so emoji and accented or non-Latin characters round-trip correctly. Turn on URL-safe when the result must sit inside a URL or filename.
All conversion happens on this page — nothing is uploaded and nothing is tracked. Your last input is remembered only in this browser.