Base64 Encoding Comparison Table

Input plaintext (UTF-8):
Base64 alphabet (index → char):
Index Char Index Char Index Char Index Char
Encoded result:
Per-chunk mapping (3 bytes → 4 chars):
Chunk # Input bytes (decimal) Input bytes (hex) 24-bit binary 6-bit groups (4) Index → Char Output quartet Padding

How to Use

What this page shows

Interactive Base64 reference: alphabet table, step‑by‑step chunk mapping, and a live encoder for your sample input.

Steps

  1. Enter text above and click "Build Table".
  2. Review the alphabet and the per‑chunk 24‑bit to 6‑bit mapping.
  3. Copy the encoded result when satisfied.

Example

Notes