--- updatedAt: 2025-11-05T21:11:51.000Z agentTools: projectIndex: https://developers.short.io/llms.txt --- # Creating short links from JavaScript application Another way to create short links is by using a POST HTTP request to , with JSON body. ## Prerequisites 1. [Create a public API key ](https://developers.short.io/docs/creating-an-api-key)from the **Integrations and API** menu:

2. Create an .html file and include the following code: > 📘 > > Please replace **example.xyz** and **{user.apiKey}** with the appropriate values. ```html HTML + JavaScript

Shorten your first link!

``` ## To create short links using Javascript Before testing the functionality, it is necessary to host your file on a server/domain. One simple method to demonstrate how the code works is to deploy it to the [Cloudflare Pages](https://pages.cloudflare.com/) platform: 1. From your Cloudflare Dashboard navigate to the **Workers and Pages** -> **Pages** tab:

2. In the **Use direct upload** section click on **Get started**. 3. Enter a name for your project and click on **Create project**:

4. Drag or upload the .html file that you created as .zip archive or included in a folder:

5. After the successful upload click on **Deploy site**. 6. A message including the name of your hosted page is displayed:

7. In your browser's address bar enter the above name followed by **/the-name-of-the-html-file**, *for example*: . The following website is displayed:

8. **Paste a URL to shorten** in the field and click on **Shorten**. A message with the newly created short link is displayed below:

You can review the short link from the **Short.io** Dashboard: