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Showing content from https://cloudinary.com/documentation/flutter_image_and_video_upload below:

Flutter image and video upload

Last updated: Jul-15-2025

When using the Flutter SDK, you can use one of several options to upload files directly to Cloudinary without the need for server-side operations or authentication signatures.

If you want to use server-side operations, you can upload files to Cloudinary using the

within your Flutter app.

The upload endpoint is https://api.cloudinary.com/v1_1/<CLOUD_NAME>/upload. To use the endpoint in your application, write a function that calls the Cloudinary upload endpoint and pass:

• An unsigned upload preset with the upload method options you want to apply for all files
• The file(s) to upload
• Other unsigned upload parameters to apply to the selected files (e.g. tags, if needed).

For example:

Watch this video tutorial to see how to upload images from your Flutter app to Cloudinary using the Upload API:

The Upload widget is a ready-made, responsive user interface that enables your users to upload files from a variety of sources directly to Cloudinary. You can customize and embed this UI in a WebView Flutter widget with just a few lines of code.

Check out the following Upload Widget code explorer that you can fork to try out some sample configuration changes:

Due to CORS issues with StackBlitz, you may have errors opening the widget with the preview. Try opening the preview in a new tab to resolve this or use the GitHub link below to run locally.

This code is also available in GitHub.

• Code sample: Implement the upload widget.
• CodeSandbox: Upload multiple files using a form in pure JavaScript using the Cloudinary upload endpoint.

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