# Blur Placeholder > Generate WebP, BlurHash, or ThumbHash placeholders for Umbraco Image media and deliver one frontend-ready string. ## Docs - [Overview](https://blur-placeholder.vercel.app/overview): Compare WebP, BlurHash, and ThumbHash output using measured examples, then choose the representation that fits your frontend. - [Quickstart](https://blur-placeholder.vercel.app/quickstart): Install and verify the extension in an Umbraco CMS 17 project. - [Delivery API](https://blur-placeholder.vercel.app/delivery-api): Request the placeholder explicitly without changing core media conversion. - [Operations](https://blur-placeholder.vercel.app/operations): Backfill and retry behavior. - [License](https://blur-placeholder.vercel.app/license): License and third-party attribution.