Encode and decode URLs

Encode a parameter value or a complete URL with the right separators preserved. Choose a mode, inspect the result, then copy or download TXT.

Enter text to encode or decode

Ready to process special characters

Parameter value

Choose Component to encode & and = inside one value.

Assembled URL

Choose Full URL to keep separators such as /, ?, & and =.

How to encode or decode a URL

01

Choose what you need to process

Use Component for one parameter value and Full URL for an assembled link. Then choose Encode or Decode.

Choose the mode for your task

Encode individual values before assembling a URL. If a link already contains separators, use Full URL to preserve its structure.

TaskChooseCheck the result
One value contains a&b Component → Encode a%26b keeps & inside one value.
URL already has ?q= and & Full URL → Encode The /, ?, & and = separators remain in place.
Form value uses + for spaces Component → Decode; turn on “Treat + as space” hello+world → hello world

If the result is unexpected

Separators turned into %XX
You may have encoded an entire link in Component mode. Choose Full URL; encode a parameter value containing & separately before assembling the link.
Decoding shows an error
Check that each % has two hexadecimal digits and that the %XX sequences form valid UTF-8.
+ stayed as a plus sign
Turn on “Treat + as space” only when decoding a form value in Component mode. A + in Full URL mode is not changed automatically.
Special characters remain in the URL
Full URL mode preserves syntax separators. If the character belongs to a parameter value, encode that value with Component first.

Data and limits

This tool processes your input with JavaScript in your browser. Percent encoding changes how characters are represented; recipients can decode them. Do not put passwords or secret tokens in a URL just because the text has been encoded.

Comments & feedback

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