This tool percent encodes a single value so it can be dropped safely into a URL query string, and it can decode an encoded value back to plain text. It uses encodeURIComponent and decodeURIComponent under the hood, which escape characters that have special meaning in a URL such as the ampersand, equals sign, question mark, hash and space. That matters because an unescaped value can break a link or be misread as the start of a new parameter. Unlike whole URL encoders, this focuses on one field at a time, which is exactly what you want when hand building an API call or a tracking parameter. Paste your text, choose encode or decode, and copy the result. All processing is local to your browser, so nothing you type is ever transmitted or stored.
It applies encodeURIComponent style percent encoding, which is the correct choice for a single value inside a query string.
Those characters have special meaning in a query string, so encoding them keeps a single value from being read as multiple parameters.
Yes, paste a percent encoded value and the tool decodes it back to the original readable text.
This tool percent encodes a single value so it can be dropped safely into a URL query string, and it can decode an encoded value back to plain text. It uses encodeURIComponent and decodeURIComponent under the hood, which escape characters that have special meaning in a URL such as the ampersand, equals sign, question mark, hash and space.
Yes. URL Query Value Encoder is completely free, with no sign-up and no usage limits.
Yes. URL Query Value Encoder runs in any modern web browser. There is nothing to download or install.
Yes. URL Query Value Encoder runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/url-query-encoder)