SO SimonOS
Converters Live tool

URL Encoder / Decoder

Encode and decode percent-escaped URL text for query strings, route parameters, links, and copied payload fragments.

Tool Flow

01 Input 02 Process 03 Output

Tool Guide

About the URL Encoder / Decoder

Use the URL Encoder / Decoder when copied links, query strings, route parameters, webhook values, or form-style payloads need to be made safe for URLs or turned back into readable text. It handles percent-encoding locally and can treat plus signs as spaces for common query-string decoding.

Common uses

  • Encode query parameter values before adding them to a URL.
  • Decode percent-escaped text copied from logs, requests, or browser address bars.
  • Inspect form-style values where plus signs represent spaces.
  • Prepare route parameters, callback URLs, and API examples without opening a heavier tool.

Browser workflow

  1. 01 Choose encode or decode mode.
  2. 02 Paste the URL text, query fragment, or encoded value.
  3. 03 Copy the converted output or swap direction to verify the reverse conversion.