---
title: "Backblaze B2"
description: "Backblaze B2 is a built-in integration for Home Assistant. It has 579 installs sharing analytics and needs the vendor's cloud."
canonical: "https://vulpo.app/integrations/core/backblaze-b2"
url: "https://vulpo.app/integrations/core/backblaze-b2.md"
last-updated: "2026-10-22"
version: "1.4"
---

# Backblaze B2

> Backblaze B2 is a built-in integration for Home Assistant. It has 579 installs sharing analytics and needs the vendor's cloud.

Backblaze B2 is a built-in integration that connects Home Assistant to a Backblaze B2 cloud storage bucket. It uses a key ID, an application key and the name of an existing bucket that the credentials can write to. An optional folder prefix sets the directory path where backup files are stored, and leaving it empty keeps them in the bucket root. Setup is done in the UI, and the connection settings can be changed later without removing the integration. Repair notices appear under Settings, Repairs when bucket access is restricted or the bucket cannot be found. A diagnostics file can be downloaded to attach to a bug report.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=backblaze_b2)

## Supports

- **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Change settings later**: Its connection settings can change without removing it.
- **Bronze quality**: Home Assistant's own rating of its code and setup experience.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

It is added under Settings, Devices and services, with Add integration.

### Connect

- **Application key**
- **Bucket name**: Bucket must already exist and be writable by the provided credentials.
- **Key ID**
- **Folder prefix (optional)**: Directory path to store backup files in. Leave empty to store in the root.

Also asked when changing the connection.

### Sign in again

- **Application key**
- **Key ID**

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Troubleshooting

- **Diagnostics**: Downloads a diagnostics file to attach to a bug report.
- **Repair notices**: Notices it can show in Settings, Repairs:
  Bucket access restricted, Bucket not found

## At a glance

- Kind: Built-in integration
- Category: [Productivity and information](https://vulpo.app/integrations/category/productivity-and-information.md), Documents and photos
- Number: 579 installs sharing analytics
- Connection: Needs the vendor's cloud
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Quality scale: Bronze quality scale
- Domain: `backblaze_b2`
- Source: <https://www.home-assistant.io/integrations/backblaze_b2/>

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/backblaze-b2

---

- HTML version of this page: https://vulpo.app/integrations/core/backblaze-b2
- Site index for agents: https://vulpo.app/llms.txt
- Everything in one document: https://vulpo.app/llms-full.txt
- All pages: https://vulpo.app/sitemap.xml