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HomeToolsBase64 Encoder / Decoder

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to plain text. Supports UTF-8 and URL-safe mode.

Plain Text
41 characters
Base64 Output
Output will appear here

Common Uses

  • Encoding credentials in HTTP Basic Auth headers
  • Embedding images in HTML/CSS (data: URIs)
  • Encoding binary data in JSON/XML payloads
  • JWT token payloads are Base64url encoded

URL-safe vs Standard

  • Standard: uses + and / with = padding
  • URL-safe: replaces with - and _, no padding
  • JWT tokens use URL-safe Base64 (Base64url)