URL string conversion
URL Encoder Decoder
Encode URLs, query parameters, and search terms, or decode percent-encoded strings.
Your input is not stored on our server
How to use URL Encoder
Turn Korean text, spaces, and special characters into URL-safe strings, or decode them back for checking.
Recommended workflow
- 1.Paste a URL or parameter value.
- 2.Choose the encode/decode mode.
- 3.Convert and copy the result.
URL Encoder output checks
- Do not include passwords, API keys, or other secrets.
- Run or validate the output in a test environment.
- Confirm the encoding and formatting options match the destination.
Processing method
A full URL and an individual query value preserve different delimiter characters, so choose the encoding mode that matches the intended use.
How files and inputs are handled
This tool processes files and inputs in the current browser. OneClickTool does not receive or store the original content on its own server.
Frequently Asked Questions
What is the difference between full URL and parameter encoding?
Full URL encoding keeps structure characters such as :/?&=, while parameter encoding is stricter for values such as search terms.
When should I use plus signs for spaces?
Use it when a form or query string expects spaces as + instead of %20.
What happens if decoding fails?
Broken percent-encoded input shows an error and clears the result so you do not copy an invalid string.
Supported Scope
Code formatting, JSON validation, Base64, URL encoding, and UTM URL building are supported.
External API calls, server log analysis, and security scanning are not currently supported.
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