Free Developer Tool

URL Encoder / Decoder

Encode special characters in URLs or decode percent-encoded URLs back to readable text.

Input
Output

Why Encode or Decode URLs?

Web addresses require incredibly strict formatting architectures. Translate unsafe characters seamlessly for safety.

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Link Safety

URLs can only contain certain ASCII characters. Spaces and symbols must be replaced with safe percent encodings.

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Readability

Is a broken URL completely unreadable (e.g. `%20` or `%40`)? Instantly decode these sequences back to standard languages.

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API Routing

Send complex programmatic payloads through web addresses smoothly by encoding the variable parameter queries.

Frequently Asked Questions

What does URL Encoding actually do?

URL Encoding takes illegal website characters (like spaces, tabs, ampersands, and quotes) and translates them into an internet-safe format. This is commonly known as Percent-Encoding because it uses percentage signs followed by hex digits (e.g., a space becomes `%20`).

Why does decoding fail sometimes?

If attempting to strictly decode a string that doesn't actually contain valid percent-encoded signatures or utf-8 structures, browsers can throw a Malformed URI error. Our tool automatically displays an alert instead of permanently breaking if an invalid configuration occurs.

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