> For the complete documentation index, see [llms.txt](https://docs.uibakery.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uibakery.io/reference/working-with-components/aws-s3-uploader.md).
# S3 file uploader
## Overview
*Upload to S3* is a button to upload files to Amazon S3. The uploader allows you to set ACL and specify file type restrictions and MIME types.
### Properties
Name
Type
Description
name
string
Component name
lastUploadedFileUrl
string
S3 URL of the last uploaded file
lastUploadedFileName
string
Name of the last uploaded file
### Triggers
Name
Description
On Upload Success
Triggered when a file is successfully uploaded
## Working with the component
If you are planning to use the S3 file uploader in UI Bakery, you first need to [connect your Amazon S3 as a data source](/reference/data-sources/amazon-s3.md) and [set up **CORS policies**](/reference/data-sources/amazon-s3.md#allowing-cors-for-s3-file-upload) for your bucket.
### To upload files to S3:
1. Add the **S3 file uploader** component to the working area.
2. Select the necessary *S3 data source* from the dropdown, specify the bucket, and set up other required settings.
3. Next, click on the component and select the necessary file to upload it.
Once it's uploaded, you will notice that the `lastUploadedFileUrl` is an S3 URL, and you can refer to it with the `{{ui.s3FileUploader.lastUploadedFileUrl}}` variable.
Also, If you need to call any action upon the file upload, you can use the **On Upload Success** trigger of the component.
---
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