Tool Hub

Encoding Detector

Auto-detect and decode Hex/Base64/URL/HTML/Unicode

Try a sample

BASE64

Confidence: 100%

Hello world!

See also: HTML Entity Encoder

How to use

  1. Paste encoded text into the input area, or click one of the sample buttons to load a pre-built example.
  2. The tool automatically detects Base64, Hex, URL percent-encoding, HTML entities, and Unicode escape sequences.
  3. Each detected encoding is shown with a confidence badge (green ≥ 80%, yellow ≥ 50%, grey below).
  4. Click Copy next to any detection result to copy the decoded text.

Examples

  • Pasting "SGVsbG8gV29ybGQ=" detects Base64 with high confidence and decodes it to "Hello World".
  • Pasting "caf%C3%A9" detects URL-encoding and decodes it to "café".

Verify outputs before using in production. No warranty — see Terms.