simpleparallax.com

What Is It

simpleParallax.js is a lightweight image parallax animation library for React and JavaScript. Its core goal is to let developers add scroll-based parallax effects to any image with very little code. Unlike some plugins that require complex layouts or background-image-based approaches, it works directly on image tags and explicitly mentions support for the next/image component, which makes it relatively low-cost to retrofit into existing image content.

Core Features

It can be installed via npm or yarn. In React, you initialize it by wrapping an image with the SimpleParallax component; a Vanilla JavaScript version is also still available. Configuration options include parallax direction (orientation), scale, whether to allow overflow, delay after scrolling stops, the CSS transition curve, and maxTransition, the maximum movement percentage. Directions include up, down, left, right, and diagonal combinations, making it suitable for simple scroll animations with added visual depth. The Vanilla version also provides options such as src, customContainer, and customWrapper, which can handle custom scroll containers or wrapper-layer scenarios, along with methods to refresh or destroy an instance.

Pricing and Open Source

The main page does not mention commercial pricing, subscriptions, or paid licensing. It only provides npm/yarn installation methods and encourages users to support the project by starring it on GitHub. Since the page includes a GitHub link, it appears to be an open-source frontend library. Payment methods, enterprise support, and SLA are not mentioned.

Pros and Cons

The strengths are its clear positioning, simple integration, well-documented parameters, and examples covering React, Next.js, and Vanilla JS. For projects that only want to add parallax effects to images, it is lighter than bringing in a large animation framework. The drawbacks are that its scope is fairly narrow, and the page does not provide information on package size, performance data, browser compatibility, accessibility impact, or maintenance frequency. Some capabilities also differ between the React and Vanilla versions.

Who It’s For and Access from China

It is suitable for frontend developers building official websites, portfolios, marketing pages, content sites, and other projects that need lightweight visual motion effects, especially React/Next.js projects. It is less suitable for teams that need complex timeline animations, scroll-triggered choreography, or large-scale interactive systems. The page does not state how accessible it is from China. npm and GitHub may be affected by network instability in mainland China. Alternatives include GSAP ScrollTrigger, Rellax, Locomotive Scroll, and React Scroll Parallax.