URL Encoder / Decoder
Encode and decode URLs and query parameters. Handle percent-encoding for safe URL transmission.
How to Use URL Encoder / Decoder
- 1Paste or type your input in the left panel.
- 2Click Process or use the keyboard shortcut ⌘↵.
- 3View the result in the output panel. Use Copy to copy to clipboard or Download to save as a file.
This tool processes data locally in your browser. Nothing is sent to external servers.
Examples
# Example for URL Encoder / Decoder
# Paste your content in the input panel above to get started.Frequently Asked Questions
What is URL encoding?
URL encoding (percent-encoding) converts special characters to %XX format so they can be safely included in URLs.
When do I need URL encoding?
When passing special characters in query parameters, form data, or API endpoints.
What characters get encoded?
Characters outside the ASCII range and special URL characters like spaces, &, =, and ? get encoded.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes full URLs while encodeURIComponent encodes individual components like query values.
Is this tool free?
Yes, completely free and runs in your browser.
Related Tools
Related Guides
URL Encoding vs URI Encoding: What Developers Mean
The terminology gets fuzzy fast. This post keeps the distinction practical instead of turning it into an abstract standards debate.
How Double Encoding Creates Hidden Bugs
Encoding is meant to preserve meaning, but applying it twice often does the opposite. This post shows how those bugs hide in plain sight.
How to Safely Share Example URLs Without Breaking Encoded Parameters
Copied links often look fine until one encoded character changes and the whole example stops behaving the same way.