Quick Answer
What is Base64 encoding?
// Answer
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 used to safely embed data in URLs, emails, JSON, and HTML. Encoding converts text to Base64; decoding reverses it.
Why use this tool
Encode anything, safely
Base64 is everywhere — data URIs, JWT tokens, API payloads, email attachments. This tool handles full Unicode correctly (many naive encoders break on emoji or accents) and works entirely on your device, so sensitive strings stay private.
FAQ
Frequently asked questions
Encoding binary or text data into a safe ASCII string for use in URLs, JSON, email, and embedding images as data URIs.
Yes. This tool encodes and decodes full UTF-8, so emoji and accented characters work correctly.
No. Base64 is encoding, not encryption — it is easily reversible and provides no security. Use it for transport, not secrecy.
Yes, all encoding and decoding happens in your browser.
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