URL Encoder Decoder Online
Encode/decode URLs using percent-encoding (RFC 3986). Handle special characters for safe URL transmission.
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About URL Encoder & Decoder Online
Encode URLs for safe transmission — converts spaces to %20, & to %26, = to %3D. Also decodes percent-encoded URLs back to readable form.
URLs can only safely contain a limited set of ASCII characters, so anything else — spaces, ampersands, equals signs, non-English characters, or symbols — has to be percent-encoded before it can be used in a query string or path segment, or the URL will break or behave unpredictably. This matters constantly when building API requests, constructing shareable links with dynamic parameters, or debugging a URL that's silently failing because of an unencoded special character buried in it. This tool encodes and decodes text instantly, handling reserved characters, spaces, and Unicode correctly, which makes it useful for developers building query strings as well as anyone troubleshooting a broken link.
How to use
- Paste or type your input directly into the editor — output updates in real time as you work.
- Check the error/status indicator if your input is invalid; it points to the exact line or issue where relevant.
- Use the copy or download button to grab the processed output once it looks right.
- Chain into a related tool below if your workflow needs a second processing step.
- Processing happens entirely client-side in your browser — nothing you paste is uploaded to a server.
Tool details
⚡ Next step — complete your workflow
Frequently asked questions
encodeURI vs encodeURIComponent?
encodeURI preserves :,/,?,& for full URLs. encodeURIComponent encodes everything for query parameter values. We use encodeURIComponent logic.
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