What does "percent-encoding" mean?

A method used to encode special or reserved characters in URIs and URLs by replacing them with a percent sign followed by two hexadecimal digits representing the character's byte value.

What is a synonym for "percent-encoding"?

Common synonyms include: url encoding.

Percent-encoding

noun, verb

noun, verb ·Rare ·Advanced level

Definitions

Noun

1
A method used to encode special or reserved characters in URIs and URLs by replacing them with a percent sign followed by two hexadecimal digits representing the character's byte value. Internet, uncountable, usually

Verb

1
present participle and gerund of percent-encode form-of, gerund, participle, present

Synonyms

All synonyms

url encoding

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.