URL Encoder & Decoder
Encode and decode URLs and URI query parameters with instant structural parameter breakdown table.
Client-side calculations and instant parameter controls are initializing. All processing occurs securely in your browser.
How to Use the URL Encoder & Decoder
- 1 Paste your raw URL, query parameter, or percent-encoded string.
- 2 Select Encode or Decode mode.
- 3 View the converted string and extracted query parameter key-value table.
Mathematical Formula & Principle
Percent Encoding: Reserved characters ➔ %HEX equivalent (e.g. Space ➔ %20, & ➔ %26)
Calculations are performed with IEEE floating point mathematical precision directly in your device memory.
Worked Examples
Query String Encoding
Safely encodes reserved URL delimiters into standard percent-encoded tokens.
Frequently Asked Questions
- What is the difference between encodeURI and encodeURIComponent?
- encodeURI preserves protocol and path delimiters (: / ? & =), whereas encodeURIComponent encodes all special characters for query param values.
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