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URL Encoder/Decoder.

Encode strings to URL-safe percentage format or decode percentage-encoded URLs back to readable text in real-time.

Input URL/Text

Conversion Settings

URL Encoded Output
Original Length: 0 characters
Result Length: 0

About URL Encoder/Decoder

URL Encoder/Decoder is a high-performance web utility built to encode strings to URL-safe percentage format or decode percentage-encoded URLs back to readable text in real-time instantly and securely. Because it is designed with a local-first architecture, all processing occurs directly in your browser's memory using client-side JavaScript. This ensures that your files, code, or private text inputs are never uploaded to any external server or tracked by third-party analytics.

Whether you are formatting source code, cleaning text files, converting file structures, or running diagnostics, running these processes locally in your browser memory sandbox eliminates network latency and protects your data privacy.

Frequently Asked Questions (FAQs)

How do I URL encode text online?

Paste your URL or query parameters into our tool, select 'Encode', and special characters will be converted to safe percent-encoded format.

How do I decode percent-encoded URLs?

Paste your percent-encoded URL (e.g. replacing %20 with spaces) into the input, select 'Decode', and read the plain text instantly.

What is URL encoding or percent-encoding?

It is a mechanism to convert special characters in a URI into safe ASCII characters using percent signs followed by hex codes, ensuring compatibility.

Why do I need to encode URL query parameters?

URL query parameters often contain characters (like spaces, &, or ?) that have special meanings in URLs. Encoding them prevents request parsing errors.

Is there a free online URL encoder?

Yes, our URL Encoder/Decoder is completely free, secure, and runs client-side inside your browser.

What does %20 mean in a URL?

In URL percent-encoding, '%20' represents a standard space character. URLs cannot contain literal spaces, so they are encoded.

Is my URL text data private when using this tool?

Yes, all encoding and decoding calculations occur locally on your machine. Your URLs are never sent to external servers.

Does this tool support encoding full URLs or only parameters?

You can choose between 'encodeURIComponent' for query parameters and 'encodeURI' for full URL path formatting.

Can I decode URL strings on a mobile phone?

Yes, our web application is fully responsive and optimized for mobile screens, tablets, and desktops.

Why are some characters like slashes not encoded?

Standard URL encoding formats (like encodeURI) leave characters like '/', ':', and '?' unencoded to preserve URL paths and routing.

Does this tool support decoding of plus symbols (+) to spaces?

Yes, our decoder handles application/x-www-form-urlencoded format, which translates plus signs (+) back to spaces.

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