---
page_title: urlencode function reference
description: The `urlencode` function applies URL encoding to a given string.
---

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> [!IMPORTANT]  
> **Documentation Update:** Product documentation previously located in `/website` has moved to the [`hashicorp/web-unified-docs`](https://github.com/hashicorp/web-unified-docs) repository, where all product documentation is now centralized. Please make contributions directly to `web-unified-docs`, since changes to `/website` in this repository will not appear on developer.hashicorp.com.
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# `urlencode` Function

`urlencode` applies URL encoding to a given string.

This function identifies characters in the given string that would have a
special meaning when included as a query string argument in a URL and
escapes them using
[RFC 3986 "percent encoding"](https://tools.ietf.org/html/rfc3986#section-2.1).

The exact set of characters escaped may change over time, but the result
is guaranteed to be interpolatable into a query string argument without
inadvertently introducing additional delimiters.

If the given string contains non-ASCII characters, these are first encoded as
UTF-8 and then percent encoding is applied separately to each UTF-8 byte.

## Examples

```shell-session
> urlencode("Hello World")
Hello%20World
> urlencode("☃")
%E2%98%83
> "http://example.com/search?q=${urlencode("packer urlencode")}"
http://example.com/search?q=packer%20urlencode
```