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Encoding Comparison Tool

Compare how data looks across Base16, Base32, Base58, Base64, Ascii85, and URL encoding simultaneously. See output sizes, expansion ratios, and copy any encoding. Runs entirely in your browser — your data never leaves your machine.

encoding base64 base32 base58 hex comparison

Published May 31, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Enter any text and instantly see it encoded in six different formats side by side. Compare output sizes and expansion ratios to choose the best encoding for your use case.

Features

  • 6 encodings: Base16 (hex), Base32, Base58, Base64, Ascii85, URL encoding
  • Size comparison: shows character count and expansion ratio for each encoding
  • Visual size bars: proportional bars to compare encoding efficiency
  • Click-to-copy: copy any individual encoding result
  • 5 examples: ASCII text, Unicode, JSON, binary-like data, URLs
  • Private: runs entirely in the browser — your data never leaves your machine

Use Cases

  • Choosing the most space-efficient encoding for data storage
  • Understanding encoding overhead for API payloads
  • Comparing encodings for URL-safe data transmission
  • Educational tool for learning about different encoding schemes