Code & Developer
100% Client-Side Private
Instant Result
URL Encoder
Percent-encode URLs and query string parameters to ensure RFC 3986 compliance.
Initializing URL Encoder...
How to Use the URL Encoder
1. Enter a URL or parameter string.
2. Select Encode mode.
3. Copy the sanitized percent-encoded output.
2. Select Encode mode.
3. Copy the sanitized percent-encoded output.
Algorithm & Formula Details
Percent-encoding replaces unsafe ASCII characters with % followed by hex digits.
All mathematical calculations, text transformations, and cryptographic hashes are executed strictly in memory inside your browser using modern Web APIs.
Frequently Asked Questions
encodeURIComponent encodes special characters like & = ? : / which is essential for query string parameter values.