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AboutPrivacySupport

Base64 text

Encode and decode Base64 for text. Unicode-safe and entirely local.

Examples

Plain text

Base64

About Base64

Base64 represents binary data as printable ASCII so it can travel safely through text channels (HTTP headers, JSON, email). This tool is Unicode-safe and runs entirely in your browser.

  • Base64 is text, not encryption.
  • Output is roughly 33% larger than input.
  • Use URL-safe variant for query strings.
  • Padding (=) makes length a multiple of 4.