URL Encoder / Decoder

Free URL encoder and decoder: Percent-encode or decode URLs and query parameters. Choose UTF-8, Windows-1252, ISO-8859, and more. Toggle component vs full-URI encoding.

Input
Output
Percent-encoded as UTF-8 (URI component)

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Frequently Asked Questions

What is URL encoding?

URL encoding (percent-encoding) replaces unsafe characters with %HH sequences so they can travel in a URL. Spaces become %20, for example.

Which character encodings are supported?

Popular options include UTF-8, ASCII, ISO-8859-1, ISO-8859-2, ISO-8859-6, ISO-8859-15, and Windows-1252. Others include Big5, CP850, GBK, Shift_JIS, and UTF-16. The encoding is used to turn text into bytes before percent-encoding (and back again when decoding).

When should I use component mode?

Use Encode URI component for query values, path segments, or form fields. Turn it off to encode a full URL while keeping : / ? & structure.

Is this the same as JavaScript encodeURIComponent?

Yes, when Character encoding is UTF-8 (the default). Component mode uses encodeURIComponent and decodeURIComponent. Full-URI mode uses encodeURI and decodeURI. Other encodings percent-encode that charset’s bytes instead.