---
title: Demos and architectures · Cloudflare R2 docs
description: Learn how you can use R2 within your existing application and architecture.
lastUpdated: 2025-04-09T22:46:56.000Z
source_url:
  html: https://a74404c8.preview.developers.cloudflare.com/r2/demos/index.md
  md: https://a74404c8.preview.developers.cloudflare.com/r2/demos/
---

Learn how you can use R2 within your existing application and architecture.

## Demos

Explore the following demo applications for R2.

* [Jobs At Conf:](https://github.com/harshil1712/jobs-at-conf-demo) A job lisiting website to add jobs you find at in-person conferences. Built with Cloudflare Pages, R2, D1, Queues, and Workers AI.
* [Upload Image to R2 starter:](https://github.com/harshil1712/nextjs-r2-demo) Upload images to Cloudflare R2 from a Next.js application.
* [DMARC Email Worker:](https://github.com/cloudflare/dmarc-email-worker) A Cloudflare worker script to process incoming DMARC reports, store them, and produce analytics.

## Reference architectures

Explore the following reference architectures that use R2:

* [Composable AI architecture](https://developers.cloudflare.com/reference-architecture/diagrams/ai/ai-composable/): The architecture diagram illustrates how AI applications can be built end-to-end on Cloudflare, or single services can be integrated with external infrastructure and services.
* [Automatic captioning for video uploads](https://developers.cloudflare.com/reference-architecture/diagrams/ai/ai-video-caption/): By integrating automatic speech recognition technology into video platforms, content creators, publishers, and distributors can reach a broader audience, including individuals with hearing impairments or those who prefer to consume content in different languages.
* [Ingesting BigQuery Data into Workers AI](https://developers.cloudflare.com/reference-architecture/diagrams/ai/bigquery-workers-ai/)
* [Optimizing image delivery with Cloudflare image resizing and R2](https://developers.cloudflare.com/reference-architecture/diagrams/content-delivery/optimizing-image-delivery-with-cloudflare-image-resizing-and-r2/)
* [Optimizing and securing connected transportation systems](https://developers.cloudflare.com/reference-architecture/diagrams/iot/optimizing-and-securing-connected-transportation-systems/)
* [Fullstack applications](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/fullstack-application/)
* [Serverless ETL pipelines](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/serverless-etl/)
* [Serverless image content management](https://developers.cloudflare.com/reference-architecture/diagrams/serverless/serverless-image-content-management/)
* [Egress-free object storage in multi-cloud setups](https://developers.cloudflare.com/reference-architecture/diagrams/storage/egress-free-storage-multi-cloud/)
* [Event notifications for storage](https://developers.cloudflare.com/reference-architecture/diagrams/storage/event-notifications-for-storage/)
* [On-demand Object Storage Data Migration](https://developers.cloudflare.com/reference-architecture/diagrams/storage/on-demand-object-storage-migration/)
* [Storing user generated content](https://developers.cloudflare.com/reference-architecture/diagrams/storage/storing-user-generated-content/)
