URL Encoder / Decoder

Encode strings to RFC 3986 URL format.

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About this tool

URL Percent-Encoding (also referred to as URL Parameter escaping) is a standardized mechanism to convert characters containing specific reserved syntactic configurations into clean, browser-compliant structures (defined inside RFC 3986 guidelines).

Percent-Encoding Architecture

Any byte values that do not map directly to safe ASCII parameters are translated into a percent sign followed by their corresponding two-digit hexadecimal representation:

%XX

Where:

  • XX represents the unique hexadecimal value of the character's internal character code.

This prevents the browser's parameter analyzer from incorrectly interpreting spaces, ampersands (&), and question marks (?) as active parameter separation nodes.

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