URL Encode/Decode

What URL Encode/Decode does

URL Encode/Decode prepares text for safe use inside query parameters, path segments, redirect values, callback URLs, and fragments. Reserved characters such as spaces, ampersands, equal signs, percent symbols, and Unicode characters can change the meaning of a URL unless they are percent-encoded. This tool uses the browser functions encodeURIComponent and decodeURIComponent so results match normal JavaScript application behavior.

This page is designed for everyday developer work: quick checks while debugging, preparing small examples for documentation, and cleaning up data before pasting it into an editor, terminal, issue, or test fixture. The interface keeps the input, controls, output, and status message close together so the result is easy to verify before you copy it.

Private browser-based workflow

All processing happens with in-browser JavaScript. The tool does not upload your text, tokens, URLs, snippets, or generated values to a server, and it does not require an account. That privacy model is important because small utilities often receive real API responses, configuration samples, logs, authentication data, or customer-shaped examples during troubleshooting. Keeping the work local reduces risk and also makes the tool feel instant because there is no network round trip.

Practical tips

Use this for URL components rather than whole URLs. For example, encode a single query value before appending it to a query string. When decoding, the tool also treats plus signs as spaces because form-encoded query strings often use that convention. Malformed percent escapes produce an error so you do not accidentally trust broken input.

Always review transformed output before relying on it in production. Browser utilities are excellent for inspection and preparation, but they cannot understand every project convention or security requirement. If the result will be committed, shared publicly, or used in an authentication flow, double-check that it contains no secrets and that it matches the format expected by your application.