URL Decoder
Decode URL-encoded strings into readable text.
What this tool does
Decode percent-encoded URL strings back into readable text so you can inspect query parameters, redirect values, and logged request data.
Tool interface
Input
Output
Example input
name%3DJohn%20Doe%26city%3DNew%20York
Example output
name=John Doe&city=New York
Step-by-step instructions
- Paste URL-encoded text.
- Click Transform to decode encoded characters.
- Copy the decoded output for debugging or cleanup.
Common use cases
- Debugging request payloads and encoded values quickly.
- Generating development data and identifiers.
- Validating text, URLs, timestamps, and structured content.
Makes encoded query strings and callback parameters readable during debugging and incident investigation.
Common mistakes to avoid
- Decoding malformed strings with partial percent sequences.
- Assuming decoded output is safe to execute without validation.
- Decoding already plain text and expecting changes.
Frequently Asked Questions
What if decoding fails?
Input may contain malformed percent-encoding.
Does this decode full URLs?
Yes, encoded URL strings and query values are supported.
Should I parse after decoding?
Yes. URL Parser helps inspect host, path, and query fields after decoding.
What input format does URL Decoder expect?
Use the format shown in the example input on this page.
What does URL Decoder output?
It returns transformed output that you can copy directly from the result panel.
Why might URL Decoder return an error?
A common issue is: Decoding malformed strings with partial percent sequences.
Does URL Decoder run in the browser?
Yes. Transformations are designed for in-browser usage so you can test and iterate quickly.
Can I copy or download results from URL Decoder?
Yes. You can copy transformed output directly from the tool.
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