URL Encoder / Decoder

Encode and decode URL parameters and query strings safely in your browser. Supports encodeURI and encodeURIComponent standards with zero tracking.

Input
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Output
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Common URL Encoded Characters

[Space]%20
!%21
"%22
#%23
$%24
%%25
&%26
'%27
(%28
)%29
*%2A
+%2B
,%2C
/%2F
:%3A
;%3B
=%3D
?%3F
@%40
[%5B
]%5D

Continue With

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Pure Client-Side Local Memory Processing · Zero Data Upload

Usage Guide

  • 1. Paste a complete URL or a query parameter string into the input panel.
  • 2. Toggle between encoding components or full URI structures.
  • 3. Copy the escaped percent-encoded result directly into your code or API client.

Security & Privacy Guarantee

  • 1. Full RFC 3986 compliance for accurate percent-encoding.
  • 2. private: URLs containing API keys and user credentials are never logged or transmitted.
  • 3. Built-in reference table for quick character code lookup.

Frequently Asked Questions

Q: What is the difference between encodeURI and encodeURIComponent?
A: encodeURI is meant for full URLs and preserves protocol delimiters (like '://', '?', '&'), whereas encodeURIComponent encodes all non-standard characters so strings can be safely embedded as parameter values.
Q: Can I decode corrupted URL parameters?
A: Yes, our decoder handles complex nested encodings and multi-byte UTF-8 sequences cleanly.