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Transform and optimize images in Svelte (video tutorial)
Last updated: Nov-24-2025
Overview
This video tutorial teaches you how to optimize and transform the images you deliver in a Svelte app by using the CldImage component of the Svelte community-developed library.
On this page:
Video tutorial
This video is brought to you by Cloudinary's video player - embed your own!
Use the controls to set the playback speed, navigate to chapters of interest and select subtitles in your preferred language.
View the code
You can find the code from this tutorial in GitHub.Tutorial contents
This tutorial presents the following topics. Click a timestamp to jump to that part of the video.
Introduction
| Jump to this spot in the video 0:00 | You can display Cloudinary-hosted images on your website using HTML, or you can use the CldImage component from the Svelte community-developed library for simplified access to Cloudinary's transformation and optimization features. |
Deliver an image using an the Cloudinary CldImage component
| Jump to this spot in the video 0:31 | Once Svelte Cloudinary is installed, import the CldImage component into your project and replace your existing image tag with CldImage. In addition, instead of referencing the entire delivery URL, just specify the public ID. |
Automatically optimize your images
| Jump to this spot in the video 0:59 | When using the CldImage component, your images are delivered with f_auto and q_auto by default. This means they're automatically delivered in the best format for the requesting browser and compressed for optimal performance while maintaining visual quality. |
Format your image as a square
| Jump to this spot in the video 1:17 | You can crop an image to a height and width of 600 pixels with the fill crop mode, to format your image as a square. |
Automatically focus on the most important part of the image
| Jump to this spot in the video 1:34 | Use the AI-based gravity="auto" property to ensure that all cropped images center on the essential area, avoiding any unwanted cuts. |
Apply any transformation using the CldImage component
| Jump to this spot in the video 1:41 | The CldImage component provides access to all Cloudinary transformations, such as special effects, text and image overlays, and more. |
Keep learning
Related topics
- Visit the Svelte community-developed library documentation to learn more about the Svelte-Cloudinary components, including their configuration, usage and examples.
- Check out the Transformation reference for a listing of all Cloudinary transformations, including syntax details and examples.
- Discover all the community-developed libraries that Cloudinary has to offer.
- Watch more Dev Hints videos on the Cloudinary YouTube channel.
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