What is this tool?
Encode text strings into percent-encoded URL formats or decode percent-encoded strings back into standard human-readable text.
When to use it?
Format query parameter values containing spaces or symbols for HTTP GET requests, decode API tracking parameters, or clean URLs for web routing.
How does it work?
Uses browser-native encodeURIComponent and decodeURIComponent functions compliant with RFC 3986 Uniform Resource Identifier specifications.
Example Conversions
Sample Input:
query=user name & role=admin
Sample Output:
query%3Duser%20name%20%26%20role%3Dadmin
Standards & Technical References
Frequently Asked Questions
URLs can only safely transmit unreserved ASCII characters. Reserved characters like spaces, &, =, and ? have structural meanings in URIs and must be percent-encoded to avoid ambiguous parsing.