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Base64 Encode / Decode

Text to Base64 and back — UTF-8 safe, so any language and emoji survive the round trip.

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What is Base64, and why UTF-8 safety matters

Base64 turns any data into plain ASCII characters so it can travel safely through systems built for text — email attachments, JSON payloads, data URLs, HTTP basic auth. Many online encoders silently corrupt non-English characters because they use the browser's legacy Latin-1 functions; this tool encodes through UTF-8 properly, so Bangla, Arabic, Chinese and emoji all decode back exactly as they went in. The URL-safe variant swaps + / for - _ — required by JWT and many APIs.

FAQ

Is Base64 encryption?
No — it's encoding, not encryption. Anyone can decode it. Never use Base64 alone to protect secrets; it just makes data text-safe.
Why does my decode fail?
The input isn't valid Base64 — check for missing characters, wrong padding (=), or accidental line breaks. If it uses - and _, switch on the URL-safe option.
Does it work with emoji and Bangla text?
Yes — encoding goes through UTF-8, so every Unicode character round-trips perfectly.

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