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Base64 Codec

Base64 encode/decode with UTF-8 and binary-safe support.

  • UTF-8 support
  • One-click encode/decode
  • Auto validation
  • URL-safe variant

How to use Base64 Codec

  1. Enter text：Paste raw text or a Base64 string
  2. Convert：Click encode or decode for instant output
  3. Copy result：Copy into code or API debugging tools

FAQ

Will non-English text garble?
UTF-8 based, CJK and Emoji never garble; decode failures point at the error instead of silently swallowing it.
Will data be uploaded?
No, encoding runs fully local — safe for tokens, keys and other sensitive strings.
URL-safe Base64 supported?
Yes, standard Base64 plus URL-safe variant (-_/ swap) with auto-padding for missing = characters.