Convert Text to Base64 Online — Instant UTF-8 Base64 Encoder

Encode plain text or UTF-8 strings into Base64 format online. Perfect for Basic Auth headers, URL query parameters, and data transmission.

✓ Encodes any string with full international UTF-8 character support (including emojis)

✓ Generates standard RFC 4648 Base64 strings with proper padding (=)

✓ Live real-time encoding with 1-click clipboard copy

✓ Ideal for HTTP Basic Authorization headers (user:password)

How It Works

  1. Type or paste text into the input field.
  2. Text is converted to UTF-8 binary bytes and mapped to the 64-character ASCII alphabet.
  3. Copy the encoded string.