Software Alternatives, Accelerators & Startups

Fly VS rollup.js

Compare Fly VS rollup.js and see what are their differences

Fly logo Fly

Cheap Flights on your Budget

rollup.js logo rollup.js

Rollup is a module bundler for JavaScript which compiles small pieces of code into a larger piece such as application.
  • Fly Landing page
    Landing page //
    2021-10-08
  • rollup.js Landing page
    Landing page //
    2023-02-09

Fly features and specs

  • User-Friendly Interface
    Fly.com provides a clean and intuitive user interface that makes it easy for users to search and compare flights efficiently.
  • Comprehensive Flight Search
    The platform aggregates flight information from various airlines and travel agencies, providing a wide range of options for users to choose from.
  • Price Alerts
    Fly.com offers a price alert feature that notifies users when ticket prices drop, helping them secure the best deals.
  • Flexible Search Options
    Users can search for flights with flexible dates, allowing them to find flights that fit their schedules and possibly lower prices.

Possible disadvantages of Fly

  • Limited Direct Booking
    Fly.com primarily redirects users to third-party websites for booking, which can add complexity to the booking process.
  • Potential for Inconsistent Pricing
    Since the platform pulls data from multiple sources, users may encounter discrepancies in flight prices or availability.
  • Ads and Pop-Ups
    The website may feature advertisements and pop-ups, which can detract from the user experience.
  • No Loyalty Program
    Fly.com does not offer a loyalty program, which might be a downside for frequent travelers who benefit from rewards.

rollup.js features and specs

  • Tree Shaking
    Rollup.js performs treeshaking to eliminate dead code, resulting in smaller bundle sizes. It analyzes the dependency tree and includes only the parts of the code that are actually used.
  • Output Formats
    Supports multiple output formats including ES modules, CommonJS, AMD, UMD, and IIFE. This makes it versatile for different use cases.
  • Plugins
    Rollup.js has a rich ecosystem of plugins that extend its functionality, such as code transformation, minification, and support for various types of modules.
  • Code Splitting
    Supports code splitting, allowing you to break your code into smaller chunks that can be loaded on demand. This improves performance for larger projects.
  • Efficient Bundling
    Offers efficient bundling by removing duplicates and ensuring that each module gets included only once, which contributes to reduced bundle size.
  • Minimal Configuration
    Generally requires minimal configuration to get started, focusing on simplicity and ease of use.

Possible disadvantages of rollup.js

  • Learning Curve
    Although relatively simple to use, there is still a learning curve associated with understanding its configuration and the plugin system.
  • Initial Build Time
    The initial build time can be slower compared to some other bundlers, particularly for larger projects.
  • Limited Built-in Features
    Rollup.js focuses on being a minimalist tool, so it lacks some of the built-in features that other bundlers may have. Often, additional functionality needs to be added via plugins.
  • Plugin Compatibility
    Not all plugins work seamlessly with Rollup.js, and there may be occasional compatibility issues, especially with plugins originally designed for other bundlers.
  • Node.js Ecosystem
    While Rollup.js excels in bundling for browsers, it is not as commonly used for Node.js applications compared to other tools like Webpack.
  • Community Size
    The community size is smaller compared to other bundling tools like Webpack, which can sometimes make finding solutions to issues more challenging.

Analysis of rollup.js

Overall verdict

  • Rollup.js is a highly recommended choice for projects where ES6 modules are extensively used, and the goal is to produce compact and clean output. It's particularly beneficial for library authors aiming to provide their libraries in multiple formats.

Why this product is good

  • Rollup.js is good due to its efficient bundling process that helps in creating smaller and faster JavaScript files. It uses ES6 modules which enable better tree shaking and helps in removing unused code, leading to cleaner and more optimized builds. Additionally, Rollup has a simple and modular architecture that can be extended with plugins to support various build processes and features.

Recommended for

  • JavaScript library authors
  • Developers prioritizing ES6 module syntax
  • Projects that require efficient tree shaking
  • Those needing a customizable and streamlined bundling process

Fly videos

The Fly Review

More videos:

  • Review - F.L.Y. Review - Is FLY at Phantasialand any good?
  • Review - THE FLY (1986) Retrospective / Review

rollup.js videos

No rollup.js videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Fly and rollup.js)
Web And Application Servers
Web Application Bundler
0 0%
100% 100
Web Servers
100 100%
0% 0
JS Build Tools
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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 Fly and rollup.js

Fly Reviews

Third Party Airfare Booking Sites: The Power Rankings - who to trust, who to avoid
JustFly is run by the same company behind FlightHub, so my advice would be similar for both. FlightHub is marketed *much* more heavily on the web, and it's fairly rare to run across JustFly.

rollup.js Reviews

Rollup v. Webpack v. Parcel
Rollup provides much simpler configuration over webpack 4 and has a host of pre-configured plugins that are a breeze to incorporate into your project. Rollup's also the fastest of the build tools period.
Source: x-team.com

Social recommendations and mentions

Based on our record, rollup.js seems to be a lot more popular than Fly. While we know about 61 links to rollup.js, we've tracked only 1 mention of Fly. 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.

Fly mentions (1)

  • Found this old 16 foot Superboat in a shed. Does anyone know anything about these boats?
    That thing is badass. You need to learn to drive it. it's a skill, by adjusting trim and speed you can make these boats rip. BUT , if you aren't careful it will hurt you. I mean bad. Subscribe to scream&fly.com. They will help you. Source: about 3 years ago

rollup.js mentions (61)

  • ⚔️ Vite vs. Turbopack in 2025: Which One to Choose?
    Vite (pronounced veet) was created by Evan You (Vue's creator) and launched in 2020. It uses native ES modules in the browser and esbuild for lightning-fast dev servers and Rollup for optimized production builds. - Source: dev.to / 1 day ago
  • Valentine’s Day Breakup: React Dumps Create React App
    Vite is a modern frontend build tool used to develop fast and super efficient web applications. It serves files instantly and ensures that changes are updated immediately after they are implemented. It makes use of Rollup for optimized builds and has support for when you want to build a Javascript library (instead of a full app). - Source: dev.to / 2 months ago
  • Advanced Guide to Using Vite with React in 2025
    In 2025, mastering Vite for your React projects means leveraging powerful configurations, intelligent optimizations, and a robust plugin ecosystem. By understanding Vite’s modern architecture—native ES modules (ESM) during development and optimized Rollup bundling for production—you can significantly streamline your workflow, improve developer experience, and deliver fast, performant applications at scale. - Source: dev.to / 2 months ago
  • Optimizing React Development with Vite🤩.
    6. Production-Ready Code Vite uses Rollup for production builds, which optimizes the code by bundling it efficiently, performing tree shaking, and minifying JavaScript. This results in smaller, optimized production builds that are ready for deployment. - Source: dev.to / 5 months ago
  • What is Evan You doing by creating VoidZero, and what are the issues with JS toolchains?
    Meanwhile, esbulid (developed in Go language, as introduced earlier) and rollup can also be used separately as packaging tools, and many third-party JS plugins are packaged using rollup. - Source: dev.to / 6 months ago
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What are some alternatives?

When comparing Fly and rollup.js, you can also consider the following products

Haproxy - Reliable, High Performance TCP/HTTP Load Balancer

Webpack - Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.

nginx - A high performance free open source web server powering busiest sites on the Internet.

Parcel - Blazing fast, zero configuration web application bundler

Traefik - Load Balancer / Reverse Proxy

esbuild - An extremely fast JavaScript bundler and minifier