URL Encoder / Decoder
Safely encode and decode parameters for web URLs offline.
How to Use the Free URL Encoder
Our URL Encoder and Decoder is a crucial utility for web developers configuring REST API parameters or handling complex form submissions. Enter raw text with spaces or special characters into the left pane to securely encode it into a standard URL-safe format (`%20`), or paste an encoded URL on the right to revert it into legible strings.
Key Features
- Bi-directional Engine: Flawlessly encode standard text to URL components, or reverse the process without switching contexts.
- RFC 3986 Compliant: Safely processes characters according to strict URI formatting rules avoiding broken hyperlink executions.
- Privacy First: The execution happens directly within your local browser's Javascript engine. Private API endpoint variables are never intercepted.
Frequently Asked Questions
Why do URLs need encoding?
Uniform Resource Locators (URLs) can only be sent over the Internet using the US-ASCII character set. Spaces and special characters must be translated to valid formats natively supported by browsers (such as `%20` for spaces) to prevent 404 transmission errors.
What characters are safe in a URL?
Alphanumeric characters (A-Z, a-z, 0-9), hyphens, underscores, tildes, and periods are standard safe characters. Everything else, including ampersands, hashes, and angle brackets, requires percent-encoding.