How I Built a Link Preview API on Cloudflare Workers for $0

📰 Dev.to · eatyou eatyou

Learn how to build a link preview API on Cloudflare Workers for free and improve your web app's user experience

intermediate Published 17 Mar 2026

Action Steps

Fetch the HTML of a webpage using Cloudflare Workers
Parse the HTML to extract relevant metadata such as title, description, and images
Configure a Cloudflare Worker to handle API requests and return the extracted metadata
Test the API with various URLs to ensure correct functionality
Deploy the Worker to Cloudflare's edge network for scalable and free hosting

Who Needs to Know This

Backend developers and full-stack engineers can benefit from this tutorial to enhance their web applications with link preview functionality

Key Insight

💡 Cloudflare Workers can be used to build a link preview API at no cost, leveraging their edge network for scalability

Key Takeaways

Learn how to build a link preview API on Cloudflare Workers for free and improve your web app's user experience

Adding link previews to a web app sounds simple until you actually try it. You need to: Fetch the...