URL Decoder

Turn a percent-encoded URL or query value back into human-readable text. The decoder resolves %XX escapes as UTF-8, so international characters and emoji reappear correctly, and it optionally treats + as a space for form-encoded input. Everything runs in your browser with clear errors for malformed sequences.

• Decode %XX escapes back to their original characters as UTF-8
• Optional 'treat + as space' mode for form-encoded query strings
• Handles emoji and multi-byte international text correctly
• Clear inline errors for malformed or incomplete escape sequences
• Live decoding as you type, with one-click copy of the result
• Works on a single value or a full encoded URL

1. 1

   Paste the encoded string

   Drop in a percent-encoded value or a full URL containing %XX sequences from a browser bar, log, or API response.

2. 2

   Toggle + handling if needed

   If the input came from a form or query string, enable 'treat + as space' so form-encoded spaces decode correctly.

3. 3

   Copy the decoded text

   The readable text appears instantly. Copy it to reuse elsewhere, or to confirm what a URL actually contained.

• Reading query parameters captured in server or analytics logs
• Inspecting an OAuth redirect_uri or state parameter
• Turning an encoded search term back into readable text
• Debugging why a URL behaves differently than expected
• Recovering the original value of a form-encoded field