Need to process web-safe strings or handle query parameters? Our free online URL encoder/decoder instantly converts special characters into percent-encoded format and back, ensuring seamless data transmission across web browsers and servers.
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Tip
Use encodeURIComponent for query string values to handle symbols like & and = correctly.
Did You Know?
URL encoding replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits.
URL encoding, also known as percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI). Characters that are not allowed in a URL must be replaced with a percent sign (%) followed by two hexadecimal digits representing the character's ASCII value. This process ensures that the URL remains valid and can be correctly interpreted by all web browsers and servers, regardless of the characters included in the data.
Best Practice
Always decode URL parameters before using them in database queries to prevent processing errors.
encodeURIComponent when building dynamic search queries.Q: What is the difference between encodeURI and encodeURIComponent? A: encodeURI is intended for a complete URL, while encodeURIComponent is used for individual components like query parameter values.
Q: Why are spaces encoded as %20? A: In the URI specification, a space is a reserved character that must be represented by its hexadecimal ASCII value, which is 20.
Q: Does this tool support special symbols like emojis? A: Yes, it converts emojis into their UTF-8 byte sequences and then percent-encodes each byte for full URL compatibility.
Tip
Double-encoding a URL can lead to broken links and 404 errors; ensure you only encode once.