Transforms & generators
URL encode and decode
Spaces become %20 (or + on decode). Safe for query values, not always for full URLs.
Processed in your browser — nothing is uploaded
Uses encodeURIComponent / decodeURIComponent. Decode also treats + as space.
Last reviewed 2026-09-10.
FAQ
Questions, answered
Full URLs?
Encoding a full URL will encode : / ? too. Encode the query value, not the whole address, unless you mean to.
Invalid sequences?
Decode errors are shown instead of throwing away the paste.
Does my text leave the browser?
No. The URL encoder runs in JavaScript on this page. Your paste is not uploaded.
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