Convert Base64 to Text Online — Decode Base64 Strings to UTF-8

Decode Base64 strings back to readable plain text online. Supports UTF-8 strings, Basic Auth tokens, and binary encoded payloads.

✓ Decodes RFC 4648 Base64 back into original UTF-8 text

✓ Handles missing padding or URL-safe Base64 strings (- and _ characters)

✓ Instant validation with friendly error messages for corrupted input

✓ Runs 100% locally in your browser

How It Works

  1. Paste your Base64 encoded string.
  2. The decoder reconstructs binary byte values and decodes UTF-8 codepoints.
  3. Readable plaintext appears immediately in the output panel.