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rollup.js VS Ubi Timer

Compare rollup.js VS Ubi Timer and see what are their differences

rollup.js

Rollup is a module bundler for JavaScript which compiles small pieces of code into a larger piece such as application.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Ubi Timer

UbiTimer is a PowerPoint timer add-in that helps presenters stay on track with a clear countdown across slides. Simple and effective.

Rating
0 reviews
Pricing
$19.9 / One-off
Alternatives Is it good?
RealityMAX
RealityMAX is the full-stack, AI-powered product visualization platform, 100% online. Turn any image into 3D in seconds, enhance your visuals with AI, and download your work or share it as interactive 3D or AR in a snap, without a line of code. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, rollup.js seems to be more popular. It has been mentioned 68 times since March 2021.

social mentions
68 vs 0
Web Application Bundler popularity
100% vs 0%
alternatives listed
66 vs 1

Base details

Website, pricing, platforms and company facts side by side.

rollup.js
Ubi Timer
Website rollupjs.org ubitimer.com
Pricing
Open source
$19.9 / One-off Official pricing
Company — Startup from the United Kingdom · 1 - 9 employees · 2025
Listed in
Web Application Bundler JS Build Tools Front End Package Manager JavaScript Package Manager +1
Design Tools Presentations Powerpoint Online Timer Countdown Timer +2

About rollup.js and Ubi Timer

In their own words, as submitted to SaaSHub.

rollup.js
Ubi Timer

No description of rollup.js yet.

UbiTimer is a lightweight PowerPoint add-in that adds countdown, count-up, and radial timers directly to your slides. Perfect for teachers, presenters, and trainers, it helps keep lessons and meetings on schedule. Works on Windows and Mac, supports slideshow mode, and offers a free EDU version...

Read more about Ubi Timer

Features and specs

What each product offers, as listed by its team.

rollup.js 6 features
Ubi Timer 5 features
  • 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

  • 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.
  • Simple Interface
    Ubi Timer offers a clean, minimalistic user interface that makes it easy for users to quickly set timers without unnecessary complexity or clutter.
  • Free to Use
    The tool is accessible without cost, making it a budget-friendly option for individuals and small teams looking to manage time without financial investment.
  • No Installation Required
    As a web-based tool, Ubi Timer can be accessed directly through a browser, eliminating the need for downloads or installations on various devices.
  • Quick Setup
    Users can start a timer almost instantly upon visiting the site, which is ideal for those who need a fast solution for time management tasks like Pomodoro sessions or study breaks.
  • Cross-Platform Accessibility
    Being browser-based, it works across different operating systems and devices as long as there is internet access, offering flexibility for users on desktops, tablets, or phones.

Analysis

An editorial look at what each product does well and who it suits.

rollup.js
Ubi Timer

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

Overall verdict

  • Ubi Timer appears to be a simple, focused online timer/productivity tool that gets basic timing tasks done without unnecessary complexity, making it a decent lightweight option though not a feature-rich alternative to dedicated productivity suites.

Why this product is good

  • Clean, minimal interface that's easy to use without a learning curve
  • Free to access without requiring account creation for basic use
  • Works directly in the browser without needing to install software
  • Useful for quick, no-frills timing needs like Pomodoro sessions or countdowns

Recommended for

  • Users who want a quick, no-signup timer for short-term tasks
  • Students or remote workers using Pomodoro-style time management
  • People who prefer simple web tools over app installations
  • Casual users who don't need advanced analytics or team features

Videos

Walkthroughs and reviews on video.

rollup.js 0 videos + Add
Ubi Timer 1 video + Add

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

UbiTimer Global Timer Across Slides in PowerPoint

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
rollup.js
Ubi Timer
100% 100%
Web Application Bundler
0% 0%
0% 0%
Presentations
100% 100%
100% 100%
JS Build Tools
0% 0%
0% 0%
Design Tools
100% 100%

Questions & Answers

As answered by people managing rollup.js and Ubi Timer.

What makes your product unique?

Ubi Timer's answer:

Ubi Timer brings timing directly into PowerPoint, so presenters do not need to switch to a browser, phone, or separate desktop timer. It supports countdown and stopwatch modes, works during Slide Show, and can be used per slide or across sections of a presentation, which makes it especially useful for lessons, workshops, rehearsals, and live talks.

Why should a person choose your product over its competitors?

Ubi Timer's answer:

Choose Ubi Timer if you want a timer that feels native to PowerPoint instead of bolted on. It is designed to be quick to set up, easy to style to match your slides, usable on Windows, Mac, and PowerPoint for the web, and reliable in live presentation settings without needing to leave your deck. It also offers a free version and a free EDU option for verified schools.

How would you describe the primary audience of your product?

Ubi Timer's answer:

Ubi Timer is built for teachers, trainers, presenters, and speakers who use PowerPoint and need better control over timing. It is especially well suited for classrooms, workshops, meetings, practice sessions, and any presentation where staying on schedule matters.

What's the story behind your product?

Ubi Timer's answer:

Ubi Timer was created out of frustration with standalone timers and makeshift PowerPoint timer setups built from animated slides. The goal was to create a cleaner, easier, and more reliable way to manage time inside PowerPoint without disrupting the presentation experience.

Which are the primary technologies used for building your product?

Ubi Timer's answer:

Ubi Timer is built as a Microsoft PowerPoint add-in for Microsoft 365 and Office, designed to work directly inside PowerPoint across supported Windows, Mac, and web environments. I could not find a trustworthy public source naming the full internal stack, so this answer is safest for a public listing.

Who are some of the biggest customers of your product?

Ubi Timer's answer:

Teachers and schools Corporate trainers Workshop facilitators Public speakers and presenters Teams using PowerPoint for meetings and rehearsals

User comments

Share your experience with using rollup.js and Ubi Timer. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

rollup.js no reviews yet
Ubi Timer no reviews yet
  • Rollup v. Webpack v. Parcel
    x-team.com · May 2018

    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.

We have no reviews of Ubi Timer yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

rollup.js 68 mentions
Ubi Timer 0 mentions

View more

Tracking Ubi Timer since Oct 2025.

Alternatives to rollup.js and Ubi Timer

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

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