URL Encoder / Decoder
Free online tool to encode or decode URL strings safely and instantly.
What is this tool?
The URL Encoder and Decoder is a free online utility designed to help developers, marketers, and standard web users safely translate text into a valid URL format, or revert encoded URLs back into readable text. URLs can only be sent over the Internet using the ASCII character set. Because URLs often contain characters outside the ASCII set, the URL has to be converted into a valid ASCII format. URL encoding replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits. Our tool uses the standard JavaScript `encodeURIComponent` and `decodeURIComponent` functions, ensuring that your strings are perfectly safe to be passed as URL query parameters or path variables. It operates entirely within your browser, guaranteeing that your data remains private and is never sent to external servers.
Common Use Cases
Prepare Data for Query Strings
Safely encode user input, special characters, and spaces before appending them to a URL query string for API requests or form submissions.
Decode Unreadable Web Links
Take a long, confusing URL filled with '%20' and other percent-encoded characters and decode it back into plain, human-readable text.
Fix Broken Image Links
Ensure that image filenames containing spaces or special characters are properly encoded so they load correctly in HTML and CSS.
Debug Affiliate & Tracking URLs
Marketers can decode complex UTM parameters and affiliate tracking links to verify that the destination data is correct.
Handle Non-ASCII Characters in Paths
Safely encode international characters, emojis, and symbols so they can be parsed correctly by modern web servers and routers.
Pass JSON Data in URLs
Encode stringified JSON objects so they can be safely transmitted via URL parameters between different applications or microservices.
Frequently Asked Questions
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