Base64 Encoder / Decoder

Unicode-safe Base64 in both directions — emojis, Urdu, Chinese all handled correctly.

Quick answer: Free Base64 encoder and decoder with full UTF-8 (Unicode/emoji) support. Encode text to Base64 or decode Base64 back — private, instant.

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Output

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About this tool

Base64 encodes binary data as text using 64 safe characters — used in data URLs, email attachments, JWTs and API payloads. Naive btoa() breaks on non-Latin text; this tool encodes through UTF-8 first, so Urdu, emoji and CJK all round-trip perfectly. Padding and whitespace are tolerated on decode.

FAQ

Why does atob fail on my Base64?

Usually invalid padding or URL-safe characters (- and _). This decoder accepts whitespace; replace -/_ if needed.

Is Base64 encryption?

No — it is encoding, not encryption. Anyone can decode it. Never 'hide' secrets in Base64.

Does it support emojis and Urdu?

Yes — full UTF-8 round-trip encoding.

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The complete base64 encoder decoder guide

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Base64 Encoder / Decoder

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The complete base64 encoder decoder guide