What is URL Encoding?
URL Encoding, also known as Percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI). Because URLs can only be sent over the Internet using the ASCII character set, characters outside this set must be converted into a valid ASCII format.
URL encoding replaces unsafe ASCII characters with a % followed by two hexadecimal digits representing the ASCII code of the character. For example, a space becomes %20.
Local Processing for Complete Privacy
When you're dealing with sensitive URLs—such as those containing authentication tokens, internal network routing structures, or PII—submitting that string to a random server online can be a major security incident waiting to happen.
This URL Encoder does all the processing locally inside your browser. We use JavaScript's native encodeURIComponent() and decodeURIComponent() functions to guarantee complete privacy.
When Should I Use This Tool?
- Query Parameters: Passing data safely across HTTP GET requests.
- API Development: Constructing API endpoints that contain dynamic user input.
- Data Extraction: Parsing messy analytics URLs or tracking links back into human-readable text.