URL encoder and decoder

Encode a URL component or decode percent escapes.

Privacy: runs in your browser

This tool processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Favorites store only tool names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. When a button sends your result to another tool, it waits in this tab until that tool opens it, for up to a minute, and is then deleted.

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English

Your text

Direction

Encode as

Decode + as a space (form values)

Your result

A component and a whole URL are different jobs

Component mode escapes reserved punctuation, including an ampersand inside a value. Whole URL mode keeps URL separators such as slashes and question marks. Encode runs only when you choose it, so an existing percent sign is never changed silently.

Next: HTML entity encoder and decoder

Worked example

octopus arms & ink becomes octopus%20arms%20%26%20ink in component mode. A literal plus stays a plus when decoding unless you choose form-style plus-as-space.

Next: Base64 encoder and decoder

Before you rely on the result

An incomplete percent escape or invalid UTF-8 byte sequence cannot be decoded as text. Encoding a whole URL does not decide which ampersands belong inside a query value.

Cite this page

Citation style

ToolOctopus. “URL encoder and decoder.” Updated 2026-10-11. https://tooloctopus.com/url-encoder-decoder.

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