URL Encoder/Decoder
Enter text or a URL below, then click Encode or Decode.
Frequently Asked Questions
Is my data sent to a server when using the URL Encoder/Decoder?
No. The URL Encoder/Decoder is a fully client-side utility. All data processing, calculations, and conversions are handled locally in your browser. No input text, payloads, or keys are uploaded to any external server.
What is the difference between URL encoding and escaping?
URL encoding (or Percent-encoding) converts reserved characters in a URL (like spaces to `%20`) to be safe for transfer across the internet, following RFC 3986 guidelines.
When should I use encodeURIComponent vs encodeURI?
Use `encodeURIComponent` for query parameter values to encode slashes, question marks, and ampersands. Use `encodeURI` for full URLs where delimiters must be preserved.
Which characters are never encoded in a URL?
Alphanumeric characters (`A-Z`, `a-z`, `0-9`) and safe marks (`-`, `_`, `.`, `!`, `~`, `*`, `'`, `(`, `)`) are never percent-encoded by standard encoders.
Does the URL Encoder/Decoder store history or cache my inputs?
No. The application runs entirely in browser memory. Once you refresh the tab, navigate away, or close the window, all inputted details, logs, and outputs are completely cleared.
Is the URL Encoder/Decoder compatible with mobile devices?
Yes. The interface is optimized to be fully responsive. You can perform calculations, conversions, and formats on all modern mobile, tablet, and desktop web browsers.
Does the URL Encoder/Decoder work offline?
Yes. Once loaded, all code and assets required to run the URL Encoder/Decoder reside in your browser cache, enabling offline use without an active network connection.