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Preact.js VS Devise

Compare Preact.js VS Devise and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Preact.js logo Preact.js

Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.

Devise logo Devise

Flexible authentication solution for Rails with Warden.
  • Preact.js Landing page
    Landing page //
    2023-05-11
  • Devise Landing page
    Landing page //
    2022-11-04

Preact.js features and specs

  • Size
    Preact is very small in size (about 3KB gzipped), which makes it easy to load and faster to execute, resulting in improved performance and quicker load times.
  • Compatibility
    Preact is largely compatible with React, allowing developers to switch to Preact with minimal code changes. This makes it easier to adopt for projects already using React.
  • Performance
    Due to its small size and efficient design, Preact offers excellent performance, especially on low-powered devices and in applications with heavy user interactions.
  • Ecosystem
    Preact can work with many tools and libraries that are designed for React, giving developers access to a rich ecosystem of resources.
  • Community
    Preact has an active and growing community that provides support, plugins, and third-party tools, making it easier for developers to find solutions and share knowledge.

Possible disadvantages of Preact.js

  • Feature Set
    While Preact covers most of the core React features, it lacks some of the advanced functionality present in React, which may require additional workarounds or third-party libraries.
  • Learning Curve
    For developers coming from a non-React background, learning Preact might involve a learning curve, particularly because of its similarities and subtle differences with React.
  • Tooling Compatibility
    Although many tools designed for React can work with Preact, some might not be directly compatible, requiring additional configuration or patches.
  • Community Size
    While Preact has a supportive community, it is smaller compared to the massive React community, which can result in fewer available resources and third-party packages.
  • Maturity
    Preact, being newer and less widely adopted than React, might not have the same level of battle-tested reliability for all use cases, especially for large scale applications.

Devise features and specs

  • Comprehensive Functionality
    Devise provides a broad range of authentication features out-of-the-box, including registration, login, password recovery, and session management.
  • Modular and Extensible
    Devise is built with a modular approach, allowing developers to pick and choose the modules they need. It also offers hooks and callbacks for further customization.
  • Community Support
    As one of the most popular authentication solutions for Rails, Devise has extensive community support, abundant documentation, and numerous tutorials, making it easier to get help and find resources.
  • Security
    Devise follows industry-standard security practices, offering features like encryption, configurable secret keys, and other mechanisms to protect against common vulnerabilities.
  • Integration with Rails
    Devise is specifically designed to integrate seamlessly with Ruby on Rails, ensuring a smoother development experience and better compatibility with other Rails components.

Possible disadvantages of Devise

  • Complex Configurations
    For developers new to Devise or those requiring highly custom authentication systems, the configuration can be complicated and may have a steep learning curve.
  • Opinionated Defaults
    Devise comes with many pre-set defaults that may not align with every projectโ€™s requirements. Customizing these defaults can sometimes be cumbersome.
  • Dependency Management
    Devise is a large library with several dependencies. Keeping these dependencies up to date and compatible with the rest of the application can sometimes be challenging.
  • Performance Overhead
    Due to its comprehensive feature set, Devise can introduce performance overhead compared to more lightweight authentication solutions.
  • Ease of Customization
    While Devise offers many customization options, very specific or unconventional authentication workflows can be difficult to implement, requiring significant overrides or extensions.

Analysis of Preact.js

Overall verdict

  • Preact.js is a strong option for projects where performance and load time are critical, or where a light footprint is necessary. Its compatibility with React makes it a flexible and efficient alternative in scenarios where React may be overkill due to its larger size.

Why this product is good

  • Preact.js is known for its small size and high performance, making it an excellent choice for developers who need a lightweight alternative to React without sacrificing functionality. It offers a familiar API for React developers, ensuring an easy transition, and is highly efficient in terms of rendering performance. Preact also offers excellent compatibility with existing React tools and ecosystems, meaning many React packages work seamlessly with Preact.

Recommended for

    Preact.js is recommended for developers building applications with stringent performance requirements, those needing to optimize for fast loading times in environments with limited bandwidth or resources, or those looking to integrate React-like architecture in smaller projects without introducing the full weight of the React library.

Analysis of Devise

Overall verdict

  • Devise is considered a robust and reliable option for authentication in Rails applications. Its ease of use combined with flexibility and wide adoption makes it a good choice for many developers.

Why this product is good

  • Devise is a flexible authentication solution for Rails based on Warden. It is highly popular due to its comprehensive range of features, which include modules for database authentication, registration, password recovery, email confirmation, social integration, and more. Its modularity allows developers to include only the features they need, making the application lighter and faster. Moreover, it has a strong community support offering extensive documentation and resources.

Recommended for

    Devise is recommended for Ruby on Rails developers looking for a well-established and comprehensive authentication library. It's suitable for projects of various sizes, from startups to enterprise-level applications, particularly when rapid development with standard authentication features is desired.

Preact.js videos

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JS frameworks are replaceable

Devise videos

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Devise Fingerboard Review

More videos:

  • Review - Figure 8 Devise Review
  • Review - Devise TV on your phone Tzumi Magic TV Best Review

Category Popularity

0-100% (relative to Preact.js and Devise)

Preact.js

Devise

Javascript UI Libraries
100 100%
Javascript UI Libraries
0% 0
Identity And Access Management
0 0%
Identity And Access Management
100% 100
JavaScript Framework
100 100%
JavaScript Framework
0% 0
Identity Provider
0 0%
Identity Provider
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Preact.js and Devise

Preact.js Reviews

Top JavaScript Frameworks in 2025
PreactJS is a JavaScript library that is said to be the fast 3Kb alternative to ReactJS using the same modern API. It implements the fastest virtual DOM compared to other frameworks in the market. Moreover, it is one of the smallest libraries in terms of size.
Source: solguruz.com
20 Next.js Alternatives Worth Considering
Preact is like Reactโ€™s little sibling, smaller in size but with the same familiar moves. Itโ€™s cutting down the fluff and zipping through tasks with less overhead. When performance budgets are tight, Preact wiggles in perfectly.
Source: tms-outsource.com
20 Best JavaScript Frameworks For 2023
Preact is built with the same core principle of React โ€“ A component-based approach with Virtual DOM while completely compatible with React. It can even use React packages without compromising on speed, performance, and leaner size. In instances where the full potential of React isnโ€™t necessary, most developers even use React during development and switch to Preact for...
Source: www.lambdatest.com
Top 15 jQuery Alternatives To Know
ReactJS is a powerful JavaScript library to create user interfaces. Developers can design easy views at each stage in the application and there is regular update and rendering for the actual components whenever there is any data alteration. It is component-driven and creates encapsulated components that manage their own state.
Source: www.spec-india.com
Top 5 JavaScript Frameworks To Learn in 2021
But according to the graph above, we can notice a decrease in interest in Preact. This might result from having many similar frameworks with the same specs, like react-lite, Inferno, etc. However, knowing a framework like Preact will be useful for your development journey.
Source: enlear.academy

Devise Reviews

We have no reviews of Devise yet.
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Social recommendations and mentions

Based on our record, Preact.js should be more popular than Devise. It has been mentiond 97 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Preact.js mentions (97)

  • How to Convert Supplier CSVs to Shopify/Amazon/WooCommerce Without Uploading to a Server
    eBay: 30+ fields (item specifics, variations, shipping) Each schema is a JSON file defining field names, data types, and validation rules. The mapper walks source โ†’ target assignments and applies type coercion (string โ†’ number, date formatting, etc.) before export. The entire app stays under 200 KB gzipped by avoiding heavy UI libraries. It's built with Preact + htm (no JSX build step) and styled with Tailwind CSS... - Source: dev.to / about 2 months ago
  • Can Claude Code migrate VanillaJS/HTML/CSS to Preact/Tailwind?
    First of all, I was concerned that React would add a lot of overhead for a Chrome Extension, which should be pretty light and quick. So I decided to use Preact, which, as its homepage states, is a "fast 3kB alternative to React with the same modern API.". - Source: dev.to / 3 months ago
  • Shopify App: October 2025 Updates
    And because of this change Shopify have also moved to Preact as the main framework for building UI extensions. Preact if you haven't heard of it is a smaller and faster alternative to React but is compatible with React. - Source: dev.to / 10 months ago
  • Spin up Bun + Preact full-stack app in minutes ๐Ÿš€
    Bun makes full-stack TypeScript feel almost too easy - a fast runtime, a dev server with HMR, and a bundler. In this post weโ€™ll spin up a minimal app that serves an HTML page, mounts a Preact component, and exposes a tiny API. - Source: dev.to / 10 months ago
  • Progressive frustration
    How do I retro-fit nextjs instructions on the Flagsmith website to fit Deno's fresh over preact? - Source: dev.to / over 1 year ago
View more

Devise mentions (47)

  • What I learned while building ActiveRubyist
    ActiveRubyist is now a Progressive Web App (PWA) with Hotwire-based interactivity. For authentication, I use devise, and for real-time notifications, noticed. Where possible, I lean into default Rails features: for background jobs, I use Solid Queue instead of Sidekiq, keeping everything aligned with the Rails way. - Source: dev.to / about 1 year ago
  • Ruby on Rails Flash notifications with Hotwire and ViewComponents
    Assume we use devise for authentication. We need to subscribe user for personal notifications channel. Add this line to app/views/layouts/application/_flash_container.html.erb. - Source: dev.to / over 2 years ago
  • SpendWise - Budget management app (Ruby on Rails + React) - Part 3
    If you like to know how to implement Devise for user authentication, here's the link- Devise. - Source: dev.to / almost 2 years ago
  • Rails and Keycloak, Authentication Authorization, part one
    Use devise gem, which is probably the most famous rails authentication system. - Source: dev.to / almost 2 years ago
  • Should I Use jwts For Authentication Tokens?
    IMHO the stateful opaque token approach is simple enough that it can (and often does) get baked into whatever language/framework youโ€™re using to write your app. In addition, the very nature of session tokens is such that the logic for what the token actually means/represents lives in your app, on the server. So, that may be why we donโ€™t see more โ€œopaque session tokenโ€ standards/libraries out there as an... - Source: Hacker News / about 2 years ago
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What are some alternatives?

When comparing Preact.js and Devise, you can also consider the following products

Svelte - Cybernetically enhanced web apps

Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.

React - A JavaScript library for building user interfaces

Okta - Enterprise-grade identity management for all your apps, users & devices

Vue.js - Reactive Components for Modern Web Interfaces

OneLogin - On-demand SSO, directory integration, user provisioning and more

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