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Base64 Encode / Decode

Convert text to and from Base64 with full UTF-8 support — safe for emoji and accents.

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How to use

  1. Choose Encode or Decode.
  2. Type or paste your input.
  3. Copy the converted result instantly.
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Frequently asked questions

Does it handle emoji and accents?

Yes. It uses TextEncoder/TextDecoder for correct UTF-8, so multi-byte characters convert safely.

What is Base64 used for?

Encoding binary or text data into ASCII, often for data URLs, email attachments, and APIs.

Is my input private?

Completely. Conversion happens in your browser; nothing is uploaded.

About this tool

Base64 Encode / Decode is a free, browser-based tool from Tools Platform. It runs entirely on your device — your data is never uploaded to a server, so it stays completely private. There are no accounts, no watermarks, and no limits. Convert text to and from Base64 with full UTF-8 support — safe for emoji and accents.