Best Online URL Encoder / Decoder

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URL Encoder / Decoder

Enter the text that you wish to encode or decode:

About URL Encoder / Decoder


Don't you hate it when you can't read a URL because it's been encoded? Or when you try to encode a URL, that doesn't work? Well, never fear! The URL Encoder / Decoder is here to help. With just a few clicks, you can encode or decode any URL.



URL encoding, also known as percent encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI) under certain circumstances. Although it is known as URL encoding, it is used more generally within the main Uniform Resource Identifier (URI) set, which includes both Uniform Resource Locator (URL) and Uniform Resource Name (URN). As such, it is also used in preparing data of the application/x-www-form-urlencoded media type, as is often used in submitting HTML form data in HTTP requests.


What is URL encoding?

URL encoding translates unprintable characters or characters with special meaning within URLs to a replacement character, typically a percent sign followed by two hexadecimal digits. The two hexadecimal digits of the percent-encoded nature specify the byte value of the original character. For example, when encoded space is replaced with %20.

Some characters are reserved in URLs and cannot be used as part of a URL (for example, the question mark, colon, slash, and sign). If these characters are used in a URL, they must be encoded. For example, the plus sign is encoded as %2B.

URL encoding is sometimes also referred to as percent encoding.


Why is URL encoding necessary?

URL encoding is essential because it ensures that all web browsers and servers can correctly interpret and display special characters. URL encoding replaces certain characters with %, followed by a two-digit hexadecimal code. For example, the character "#" is replaced with "%23". This allows for accurate communication between browsers and servers and ensures that special characters are displayed correctly.


How does URL encoding work?

When you type a URL into your browser, certain characters are encoded so that the server will adequately interpret the URL. Specifically, characters that are not letters, numbers, or the characters '_', '.''. '', or '/' are encoded. For example, the character '#' would be encoded as '%23'.

URL encoding is used for two main reasons:

1. Ensure that the server correctly interprets all characters in a URL. This includes both reserved and non-reserved characters.

2. Ensure the browser correctly interprets any special characters in a URL. This includes reserved and non-reserved characters.


What are the benefits of using a URL encoder/decoder?

There are a few benefits of using a URL encoder/decoder. First, it can help you to ensure that your URL is formatted correctly and does not contain any illegal characters. Additionally, it can help you to avoid potential problems caused by incorrect character encoding. Finally, it can help you to optimize your URL for search engine optimization (SEO) purposes.


How can I use a URL encoder / decoder?

A URL encoder/decoder can be helpful when you need to encode or decode a string of text for use in a URL. You might need to do this when you are developing a web application and you want to ensure that all characters in your URL are correctly encoded. You can also use a URL encoder/decoder when you want to decode a URL that has been encoded by someone else.

To use a URL encoder/decoder, enter the text string you want to encode or decode into the input field and click the "Encode" or "Decode" button. The encoded or translated line of text will then be displayed in the output field.


What are some common URL encoding mistakes?

As with any encoding scheme, there are bound to be some common mistakes when URL encoding. Below are some of the most common mistakes:

-Not encoding reserved characters: Characters such as &, /, ?, #, and = have special meanings in a URL and must be encoded if they are part of the query string.
-Not encoding non-ASCII characters: Non-ASCII characters such as å, ñ, and é must be encoded if they are part of the query string.
-Encoding spaces as +: Spaces should be encoded as %20, not as +. While + is technically a valid character to encode, browsers and servers often misinterpret it.
-Using uppercase letters: While some browsers will correctly interpret uppercase letters in a URL query string, many will not. It is best always to use lowercase letters when encoding.



URL encoding is a way of ensuring that all characters in a URL are correctly represented. It is often used when submitting form data or generating links to ensure that all special characters are correctly encoded.

Decoding a URL is the reverse process of encoding it. This can be useful if you need to generate a link based on user input or if you want to check that a URL has been correctly encoded.