---
title: Demos and architectures
description: Explore demo applications and reference architectures that use Workers KV.
image: https://developers.cloudflare.com/dev-products-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/kv/llms.txt  
> Use this file to discover all available pages before exploring further.

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# Demos and architectures

Learn how you can use KV within your existing application and architecture.

## Demo applications

Explore the following demo applications for KV.

* [Queues Web Crawler: ↗](https://github.com/cloudflare/queues-web-crawler) An example use-case for Queues, a web crawler built on Browser Run and Puppeteer. The crawler finds the number of links to Cloudflare.com on the site, and archives a screenshot to Workers KV.

## Reference architectures

Explore the following reference architectures that use KV:

[Fullstack applicationsA practical example of how these services come together in a real fullstack application architecture.](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/fullstack-application/)[Programmable PlatformsWorkers for Platforms provide secure, scalable, cost-effective infrastructure for programmable platforms with global reach.](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/programmable-platforms/)[Ingesting BigQuery Data into Workers AIYou can connect a Cloudflare Worker to get data from Google BigQuery and pass it to Workers AI, to run AI Models, powered by serverless GPUs.](https://developers.cloudflare.com/reference-architecture/diagrams/ai/bigquery-workers-ai/)[A/B-testing using WorkersCloudflare's low-latency, fully serverless compute platform, Workers offers powerful capabilities to enable A/B testing using a server-side implementation.](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/a-b-testing-using-workers/)[Serverless global APIsAn example architecture of a serverless API on Cloudflare and aims to illustrate how different compute and data products could interact with each other.](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/serverless-global-apis/)[Serverless image content managementLeverage various components of Cloudflare's ecosystem to construct a scalable image management solution](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/serverless-image-content-management/)

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