URL Encoder & Decoder
Encode or decode URLs instantly using percent encoding. Supports full URL encoding, component encoding, bulk mode, and advanced options.
Advanced Options
What is URL Encoding?
URL encoding, also known as percent encoding, converts special characters into a format that can be safely transmitted over the internet. For example, spaces become %20 to ensure URLs remain valid and readable by browsers and servers.
When Should You Encode a URL?
URL encoding is required when passing special characters inside query parameters, creating UTM tracking links, sending API requests, or handling user-generated input in web applications.
Encode URI vs Encode URI Component
Encode URI is used for encoding entire URLs, while Encode URI Component is used for encoding specific parts such as query parameters. Choosing the correct method prevents over-encoding and formatting errors.
Related Tools
Clean formatting first with Remove Extra Spaces.
Adjust capitalization using Text Case Converter.
Remove repeated entries using Duplicate Remover.
Frequently Asked Questions
Why do spaces become %20?
Spaces are not valid in URLs, so they are replaced with %20 to maintain compatibility across browsers and servers.
Is URL encoding reversible?
Yes. Encoded URLs can be decoded back to their original readable format using a URL decoder.
Is this tool safe?
Yes. All processing happens inside your browser. No data is stored or sent to any server.