Welcome to a tutorial on how to redirect with parameters in Javascript. Need to redirect the user to another page and pass some data along?
To redirect with parameters in Javascript:
var query = new URLSearchParams();
query.append("KEY", "VALUE);
location.href = "http://site.com/page?" + query.toString();
That covers the quick basics, but read on for more examples!
ⓘ I have included a zip file with all the source code at the start of this tutorial, so you don’t have to copy-paste everything… Or if you just want to dive straight in.
TLDR – QUICK SLIDES
Fullscreen Mode – Click Here
TABLE OF CONTENTS
DOWNLOAD & NOTES
Firstly, here is the download link to the example code as promised.
QUICK NOTES
If you spot a bug, feel free to comment below. I try to answer short questions too, but it is one person versus the entire world… If you need answers urgently, please check out my list of websites to get help with programming.
EXAMPLE CODE DOWNLOAD
Click here to download all the example source code, I have released it under the MIT license, so feel free to build on top of it or use it in your own project.
REDIRECT WITH PARAMETERS
All right, let us now get into more examples on how to redirect with parameters in Javascript.
1) HTML FORM ONLY
<form action="1-form-only.html">
<input type="text" name="name" required value="Jon">
<input type="email" name="email" required value="jon@doe.com">
<input type="submit" value="Go">
</form>
A quick reminder to those who may have forgotten, we don’t actually need Javascript to “redirect with parameters”. Just create an HTML form, give all the fields a name
. The browser will do the rest of the magic on submission – This will “redirect” to http://your-site.com/1-form-only.html?name=Jon&email=jon%40doe.com
.
2) URL SEARCH PARAMETERS
<!-- (A) JAVASCRIPT -->
<script>
function redirect () {
// (A1) URL SEARCH PARAMETERS
var query = new URLSearchParams();
query.append("name", "Jon");
query.append("email", "jon@doe.com");
// (A2) APPEND TO URL
location.href = "2-search-params.html?" + query.toString();
}
</script>
<!-- (B) TEST BUTTON -->
<button onclick="redirect()">Go</button>
As in the introduction above:
- We create a
var query = new URLSearchParams()
object. - Use
query.append("KEY", "VALUE")
to add parameters. - Lastly,
query.toString()
to append all the parameters behind your URL.
3) MANUAL PARAMETERS
<script>
function redirect () {
// (A1) SEARCH PARAMETERS
var params = "name=" + encodeURIComponent("Jon");
params += "&email=" + encodeURIComponent("jon@doe.com");
// (A2) URL WITH SEARCH PARAMETERS
var url = "3-manual.html?" + params;
// (A3) REDIRECT
location.href = url;
}
</script>
<!-- (B) TEST BUTTON -->
<button onclick="redirect()">Go</button>
Lastly, here is the old-school way to manually build the URL and query string.
EXTRA BITS & LINKS
That’s all for the tutorial, and here is a small section on some extras and links that may be useful to you.
WHICH IS THE BEST METHOD?
Personally, I will stick with the modern new URLSearchParams()
. This is just a lot more convenient and easier to work with. But if you have to support ancient browsers, the hidden form is not a bad idea.
LINKS & REFERENCES
- How To Build Query Strings In Javascript – Code Boxx
- URL Search Params – MDN
- Encode URI Component – MDN
INFOGRAPHIC CHEAT SHEET

THE END
Thank you for reading, and we have come to the end. I hope that it has helped you to better understand, and if you want to share anything with this guide, please feel free to comment below. Good luck and happy coding!