> Catberry.js is an isomorphic JavaScript framework. Learn how GDPR applies to universal apps built with it and what remains the developer's responsibility.
>
> Canonical: https://www.flowconsent.com/en/services/framework/catberry-js

Frameworks

# Catberry.js

Unclassified · [Official website](https://catberry.github.io/)

Catberry.js is an open-source isomorphic JavaScript framework for building universal web applications that run both on the server and in the browser using the same codebase. It supports server-side rendering and single-page application patterns. As a framework, it has no built-in data collection, and GDPR compliance depends entirely on the application built with it.

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At a glance

- Category

  [Frameworks](https://www.flowconsent.com/en/services/framework)

- Consent

  Unclassified

- Prior consent

  Not required

- Documented cookies

  1

- Third-party domains

  2

- Servers

  Self-hosted (deployer infrastructure)

Overview

## What does Catberry.js do?

## **What is Catberry.js?**

Catberry.js is an open-source isomorphic JavaScript framework for building universal web applications. It supports a component-based architecture where the same code runs on both Node.js (for server-side rendering) and in the browser. It provides built-in routing, data fetching, and state management with no built-in data collection.

## **GDPR and Catberry.js**

Catberry.js has no GDPR implications as a framework. GDPR obligations depend on the application and services integrated. Apply GDPR at the application level, including consent management, data subject rights handling, and DPAs with backend services.

## **Practical compliance steps**

No GDPR actions are required for Catberry.js itself. Apply compliance at the application level. Install via npm. No privacy policy entry, DPA, or cookie notice is needed for the framework.

Compliance

## Catberry.js and the GDPR

- Legal basis

  Catberry.js is a framework with no data processing. GDPR obligations arise from the application built with it.

- Risk level

  low

- Applicable regulations

  GDPR compliance is the responsibility of the application developer

### Impact assessment (DPIA)

A DPIA is not required for Catberry.js. It may be required for applications built with it that process large-scale personal data or perform automated decision-making.

### Sample text for your banner

> This application is built with Catberry.js. Data collection and processing within this application is described in our privacy policy.

Cookies and trackers

## What Catberry.js sets and contacts

- Tracking method

  Open-source isomorphic JavaScript framework, no tracking by default

- Server location

  Self-hosted (deployer infrastructure)

- Cookieless mode available

  Yes

### Cookies set (1)

| Name           | Type    | Duration | Purpose                                                                                        |
| -------------- | ------- | -------- | ---------------------------------------------------------------------------------------------- |
| catberry\_none | session | Session  | Catberry.js sets no cookies by default: application cookies depend on developer implementation |

### Third-party domains contacted (2)

- `catberry.io`
- `npmjs.com`

Questions

## Frequently asked questions about Catberry.js

Can't find your question? Write to us, we answer fast.

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### Is Catberry.js subject to GDPR?

No. Catberry.js is an isomorphic JavaScript framework. GDPR applies to the application built with it.

### Does Catberry.js set cookies?

Catberry.js itself does not. Session and authentication cookies are set by the application built with it.

### Do I need a DPIA for Catberry.js?

No. A DPIA may be needed for specific application features.

### Does Catberry.js transfer data outside the EU?

No. It is a self-hosted framework. Transfers depend on backend services the application uses.

### Does Catberry.js need to appear in my privacy policy?

No. Describe the data your application collects, not the framework.

### Is Catberry.js still actively maintained?

Catberry.js has limited active development. Consider actively maintained alternatives like Next.js or Nuxt.js for new projects.

### How do I include Catberry.js in my project?

Install via npm and follow the Catberry.js documentation for application structure.

### What GDPR compliance is needed for a Catberry.js application?

Apply GDPR at the application level: consent management, data minimisation, DPAs with backend services, and data subject rights implementation.

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