URL Encoder / Decoder

About the URL Encoder / Decoder Tool

The URL Encoder and Decoder on QuickToolSpark converts any text into a form that can travel safely inside a URL, and back again. Characters like spaces, slashes, ampersands, and question marks have special meaning in web addresses, so when they appear inside a link or a query parameter they must be encoded as percent-escape sequences, such as %20 for a space. Paste your text in, choose encode or decode, and the tool does the conversion instantly, including handling every reserved character correctly.

Most people meet encoding by accident. You share a link, and the address bar suddenly shows a long string of % signs, or a web form breaks because it cannot read a value you submitted. Understanding what is happening and having a reliable tool to do it for you turns a confusing error into a two-second fix. Developers hit this constantly when building query strings, handling search terms, or processing form data on the server.

How Percent Encoding Works

In a URL, a specific set of reserved characters separates the address into parts: the scheme, the domain, the path, and the query string. Characters like /, ?, &, =, and # are reserved for that structural role, and the % sign plus space are unsafe in their raw form. Percent encoding solves this by replacing any reserved or unsafe character with a percent sign followed by its two-digit hexadecimal byte value. A space becomes %20, an ampersand becomes %26, and a question mark becomes %3F.

The encoding works in both directions. When you decode, %20 turns back into a space and %2C into a comma, restoring the original text exactly. The standard used across the web is UTF-8 percent encoding, which is why characters from other alphabets, like accented letters, Chinese characters, or emojis, expand into longer %-encoded sequences. Decoding those strings is precisely what this tool is for.

How to Encode and Decode URLs

To encode, paste the text or partial URL you want to fix into the box and click Encode. Every character that needs escaping is converted, and the safe result is copied out. To decode, paste an encoded string like this%20is%20encoded into the decoder and the original text, this is encoded, reappears instantly. The direction is fully reversible, so you can flip between the two views any number of times.

Use the encoder when building a link that contains a search query with spaces or special characters, when you are passing a URL inside another URL as a parameter, or when a web app rejects a value you typed in a form field. Use the decoder when you receive a mangled-looking link and want to see what it actually points to, or when you need to extract clean text from an analytics or log export that stored everything encoded.

• Encode user input before placing it in a URL, because a raw space or ampersand can break the query string or change its meaning.
• When nesting a URL inside another URL's parameters, encode the inner URL first so its own ? and & characters stay intact.
• Decode log files and exported share links to read what users actually searched for, instead of scanning %-codes.
• Use the encoder to prepare links for messaging apps and emails, which sometimes mangle raw special characters.