URL Encoder (Component)
Encode query string parameters using encodeURIComponent standard.
UTM Campaign Parameter Builder
About URL Encoder (Component)
The Standards-Compliant URL Component & Query String Encoder converts special characters, spaces, punctuation, and Unicode text into RFC 3986 percent-encoded escape sequences (`%20`, `%26`, `%3F`) for secure query parameters and REST API paths.
How to Use URL Encoder (Component)
Step 1
Type or paste text into the URL encoder.
Step 2
Select encoding mode (`encodeURIComponent` for query values, `encodeURI` for full links).
Step 3
Review the percent-encoded output string.
Step 4
Click "Copy Encoded URL".
Practical Use Cases for URL Encoder (Component)
Escaping REST API Query Parameters & Search Strings
Encode search keywords containing ampersands (e.g. `AT&T` $\rightarrow$ `AT%26T`) to prevent API parameter parsing breaks.
Building Safe Webhook & Redirect Destination URLs
Encode return URL parameters (`?redirect_to=https%3A%2F%2F...`) inside OAuth and authentication callback links.
Input & Output Examples
Encoding Query Parameter String
Text: "hello world & foo=bar/baz?"
`encodeURIComponent`: "hello%20world%20%26%20foo%3Dbar%2Fbaz%3F" | `encodeURI`: "hello%20world%20&%20foo=bar/baz?"
Key Features & Performance
- ✓Encodes via RFC 3986 `encodeURIComponent()` (full query param) and `encodeURI()` (full URL).
- ✓Supports UTF-8 multi-byte percent encoding for non-Latin and emoji characters.
- ✓Batch mode: encode multi-line URL parameter lists simultaneously.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy encoded URL.
Key Terminology & Definitions
Percent-Encoding (URL Encoding)
A mechanism for encoding arbitrary octet bytes in a URI using character triplets consisting of a percent sign (`%`) followed by two hexadecimal digits (e.g. `%20` for space).
RFC 3986 Reserved Characters
Characters with reserved syntactic meaning in URIs: `:`, `/`, `?`, `#`, `[`, `]`, `@`, `!`, `$`, `&`, `'`, `(`, `)`, `*`, `+`, `,`, `;`, `=`.