編碼檢測器

使用方法

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。

範例

• 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"。