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URL Encoder / Decoder

Encode or decode text, pull a full URL apart into its components, or build a clean query string from key/value pairs. Everything runs in your browser — nothing is uploaded.

Result appears here.
URL components appear here.
?key=value pairs appear here as you type.

About this tool

Three small utilities in one page. Encoding and decoding use the browser's own encodeURIComponent/decodeURIComponent, the dissector uses the standards-compliant URL parser (query parameters are shown already decoded), and the builder produces a correctly percent-encoded query string via URLSearchParams — so the output is exactly what browsers and servers expect.

Your URLs and text never leave the page — there is no server, no upload, and no tracking of tool inputs.

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Found this useful? 113 free, browser-only tools by Yuvrajsinh Jadav — an engineer who ships production AI systems. No account, nothing sent anywhere.
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