Developer Tools

URL Encoder & Decoder

Percent-encode and decode URL strings safely. Handle special characters, query parameters, and path segments according to RFC 3986.

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URL Encoder / Decoder

What is URL Encoder & Decoder?

URL Encoder & Decoder is a web developer utility that converts between standard text and URL-encoded percent-encoded format as defined by RFC 3986. URL encoding replaces unsafe ASCII characters with a percent sign followed by two hexadecimal digits spaces become %20 ampersands become %26 plus signs become %2B and so on. This encoding is essential when constructing URLs with query strings containing special characters passing data through REST API endpoints embedding Chinese or Unicode characters in URLs or decoding path parameters received from client requests. The tool also supports URL component encoding versus full URL encoding modes plus application/x-www-form-urlencoded format handling for POST request body data. Process thousands of URLs at scale with confidence knowing all encoding is performed locally in your browser.

When to Use URL Encoder & Decoder

Use when constructing URLs with special characters in query parameters, encoding form data for HTTP requests, decoding received URL parameters, or handling international domain names.

How to Use URL Encoder & Decoder

Select encode or decode mode. Paste your URL or text string. Choose between standard URL encoding or form encoding. Results update instantly and can be copied to clipboard.