Online URL Encoder/Decoder

Note: This tool does not send any data to the server. All processing is done at the client side only.

All in one tool for URL Encode and Decode

JSONbeautify is offering completely free and effective URL encoder and decoder. You can use the tool in real-time. Copy and paste the URL and get your desired output.

What is URL Encoder?

URL encoding is a method used to convert characters, particularly reserved or non-ASCII characters, into a format that is universally accepted and safe for transmission within a URL. This process ensures that the URL remains readable and functional across various browsers and servers.

The need for URL encoding arises due to the limitations in the characters that can be used directly within a URL. URLs have specific rules regarding the characters they can contain, restricting certain symbols, spaces, and non-ASCII characters. URL encoding resolves this issue by translating these characters into a format that can be safely transmitted over the internet without causing conflicts or errors.

For instance, spaces are not allowed in URLs. URL encoding replaces spaces with ‘%20’ to represent them safely in a URL. Similarly, characters like “&”, “?”, or non-ASCII characters are encoded to prevent misinterpretation or breakage of URLs during transmission. URL encoding ensures the reliability, security, and consistency of URLs by converting characters into a standardized format that adheres to URL specifications. It enables seamless web interactions and preventing issues arising from incompatible characters.

URL Encoding character classification

Here is a list of characters that cannot be placed directly inside URLs

Safe Characters

Alphabets (A-Z, a-z), digits (0-9), along with specific symbols like hyphen (-), underscore (_), tilde (~), and dot (.). These characters do not require encoding and can be used directly in URLs.

ASCII Control Characters

Characters in the range 0-31 and 127 in the ASCII character set are control character. For example, the control characters include backspace, carriage return, line feed, vertical tab, and horizontal tab. These characters are unprintable and necessitate encoding before inclusion in URLs.

Reserved Characters

Certain characters like “?”, “:”, “/”, “#”, “&”, etc., possess special meanings within URLs. To prevent misinterpretation, these reserved characters need to be encoded before being used directly in URLs.

Unsafe Characters

Characters like space, “<“, “>”, “{“, “}”, “|”, “`”, “^”, “”, etc., are considered unsafe and must be encoded to avoid confusion or errors in URLs.

Non-ASCII Characters

Characters outside the US-ASCII set, including accented letters, symbols, or characters from other languages are included in the list.

When you need to use URL Encoder?

  • The encoder ensures proper representation of spaces, symbols, and non-ASCII characters in URLs.
  • You can shield reserved characters from misinterpretation, preserving URL structure and preventing syntax errors.
  • Guards against potential attacks by encoding unsafe characters to prevent malicious code injection.
  • Enables accurate transmission of non-English characters, maintaining data accuracy across systems.
  • Provides a standardized format for characters, ensuring consistency across various browsers.
  • Essential for accurately handling and processing form data submitted via HTML forms.

Use free URL encoders and decoders online to protect your data. URL encode your data or decode it into human-readable form.


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