Software Alternatives, Accelerators & Startups

Excel Whisper VS Bryntum

Compare Excel Whisper VS Bryntum and see what are their differences

Excel Whisper logo Excel Whisper

AI-driven Excel analysis tool with zero privacy risks.

Bryntum logo Bryntum

High performance web components for SaaS apps - including Gantt, Scheduler, Grid, Calendar and Kanban widgets. Seamless integration with React, Vue, Angular or plain JS apps.
  • Excel Whisper
    Image date //
    2025-03-09
  • Excel Whisper
    Image date //
    2025-03-09
  • Excel Whisper
    Image date //
    2025-03-09

Excel Whisper is the ultimate Excel assistant that prioritizes user privacy by processing all data locally in the browser. This AI-powered tool allows users to clean, analyze, and visualize spreadsheets using natural language, ensuring that sensitive data never leaves their device.

  • Bryntum
    Image date //
    2024-12-28
  • Bryntum
    Image date //
    2024-12-28
  • Bryntum
    Image date //
    2024-12-28
  • Bryntum
    Image date //
    2024-12-28

Tired of building scheduling features from scratch? Bryntumโ€™s high-performance components handle the heavy lifting - no more date-time nightmares. Our JavaScript widgets (Scheduler, Data Grid, Gantt, TaskBoard, Calendar) integrate seamlessly with React, Angular, or Vue. They process massive datasets, deliver fast rendering, and adapt to your style. With robust docs, flexible APIs, and dedicated support, Bryntum helps you build top-tier apps without the late-night debugging.

Bryntum

$ Details
Free Trial $850.0 / One-off (OEM license for commercial use)
Platforms
React Angular Vue JavaScript TypeScript
Release Date
2009 September
Startup details
Country
Sweden
City
Stockholm
Founder(s)
Mats Bryntse
Employees
10 - 19

Excel Whisper features and specs

  • Natural Language Processing
    Users can ask questions and perform analyses without needing to remember complex Excel formulas.
  • Intelligent Data Cleaning
    Automatically handles missing values, duplicates, and formatting issues to maintain clean and consistent data.
  • Quick Visualization
    Generates appropriate charts based on data types, allowing users to quickly identify trends and patterns.
  • Local Processing
    All calculations are performed in the browser, providing fast responses without the need to upload data.
  • Multi-file Support
    Analyze multiple Excel and CSV files simultaneously, enabling comparison and merging of data from different sources

Bryntum features and specs

  • Drag-drop
    Drag drop and resize any task
  • RTL
    Right-to-Left support
  • Import & Export
    Export + Import from MS Project / Excel
  • WCAG 2.1
    Fully accessible
  • Travel time
    Visualize travel time for each task
  • Easy theming
    Roll your own theme or customize one of the built-in ones
  • Dark theme
    For working late
  • High performance
    Handles tens of thousands of tasks/rows
  • UX
    Excellent UX your users will love
  • AI Copilot
    In-product AI assistant letting you navigate and schedule using natural language

Excel Whisper videos

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Bryntum videos

Boost your app UX with Bryntum

More videos:

  • Demo - Flight dispatch scheduling demo with Bryntum Scheduler Pro

Category Popularity

0-100% (relative to Excel Whisper and Bryntum)
Spreadsheets
100 100%
0% 0
Project Management
3 3%
97% 97
Data Grid
14 14%
86% 86
Javascript UI Libraries
0 0%
100% 100

Questions and Answers

As answered by people managing Excel Whisper and Bryntum.

How would you describe your primary audience?

Excel Whisper's answer

Our primary audience consists of business professionals and analysts who regularly work with sensitive Excel data and seek efficiency in their daily spreadsheet tasks. This includes financial analysts, HR managers, and data professionals from enterprises who value both productivity and data privacy.

Bryntum's answer:

Bryntum primarily targets professional software teams - particularly frontend developers, architects, UX, and technical leads who need robust scheduling and project-planning functionality for their web applications. Our products (such as the Scheduler and Gantt components) are designed for organizations that want to integrate sophisticated resource management, timeline visualization, and interactive scheduling into existing or new software solutions.

In practice, these teams often work in industries and use cases where precise scheduling is critical (e.g., project management, construction, healthcare, manufacturing, and IT services). While developers are the day-to-day implementers of Bryntumโ€™s products, managers or product owners (such as PMO leads or development managers) also play a role in evaluating Bryntumโ€™s solutions to ensure they meet the organizationโ€™s technical and business requirements.

What makes your product unique?

Excel Whisper's answer

Excel Whisper stands out with its zero-privacy-risk approach where all data processing happens locally in the browser, combined with natural language processing for Excel operations. Unlike other AI Excel tools, we don't claim to understand business context, instead focusing on automating repetitive tasks while keeping sensitive data completely private.

Bryntum's answer:

What Makes Bryntum Unique?

Bryntum stands out because of its laser focus on high-performance, enterprise-grade JavaScript componentsโ€”particularly around scheduling and project planning. Here are a few reasons why Bryntum is unique:

  1. Advanced Scheduling Expertise
    Bryntumโ€™s Scheduler and Gantt products are widely recognized for their sophisticated scheduling capabilities. Their tools handle complex resource allocations, dependencies, drag-and-drop reordering, and timeline visualizationsโ€”making them a go-to choice for project and resource management in large-scale applications.

  2. Pure JavaScript (Framework Agnostic)
    All Bryntum components are developed using modern, pure JavaScript. This means they can easily integrate into any tech stack or framework (React, Angular, Vue, etc.) without sacrificing functionality or performance. If you switch frameworks in the future, you can keep using Bryntumโ€™s components with minimal refactoring.

  3. Performance & Scalability
    Bryntum components are designed for high-volume data rendering. Whether itโ€™s thousands of tasks in a Gantt chart or a scheduler loaded with numerous resources, Bryntumโ€™s products can handle heavy data loads smoothly and maintain snappy interactions.

  4. Robust Feature Set
    From critical-path analysis in Gantt charts to resource histograms and timeline overviews, Bryntum packs advanced features that meet enterprise project-planning requirements. This feature depth is one reason many organizations choose Bryntum over more general-purpose grid libraries.

  5. Extensive Documentation & Demos
    Bryntum provides thorough documentation, live examples, and demo apps that showcase how to integrate its components into a variety of environments. This makes it easier for developers to learn the product and quickly build prototypes.

  6. Dedicated Support & Development
    A hallmark of Bryntum is its attentive support. Their engineering and support teams are responsive and highly knowledgeable about both front-end development and project-planning logic, which speeds up troubleshooting and feature requests.

By focusing on scheduling and project-planning tools with high performance, great flexibility, and deep functionality, Bryntum has carved out a niche that sets it apart from other libraries and component vendors.

Why should a person choose your product over its competitors?

Bryntum's answer:

Performance, UX and abundance of features.

Which are the primary technologies used for building your product?

Bryntum's answer:

JavaScript, TypeScript and CSS

What's the story behind your product?

Bryntum's answer:

Bryntum was founded by Mats Bryntse, a software developer from Stockholm, Sweden, who had a deep interest in creating advanced scheduling solutions for web applications. Originally, Bryntum began as a consulting and component-development company centered around Sencha Ext JS, one of the leading JavaScript frameworks in the late 2000s.

Early Days (Ext Scheduler & Gantt)

Mats Bryntse developed the first version of Ext Scheduler, a scheduling component based on Ext JS, in response to a growing demand for an interactive resource-scheduling tool in web applications. Building on the success of Ext Scheduler, Bryntum introduced a Gantt component, allowing developers to visualize and manage project tasks, dependencies, and timelines directly in the browser. Transition to Pure JavaScript

Over time, the JavaScript ecosystem expanded to include many popular frameworks (React, Angular, Vue, etc.). Instead of maintaining separate builds for each, Bryntum decided to make its components framework agnostic, rebuilding them as pure JavaScript libraries. This shift allowed Bryntumโ€™s tools to be integrated into virtually any front-end stack while delivering the same level of performance and scheduling sophistication.

Who are some of the biggest customers of your product?

Excel Whisper's answer

Excel Whisper is trusted by professionals from leading organizations including Goldman Sachs, Deloitte, Microsoft, and PwC, particularly in departments handling sensitive financial, HR, and analytical data. These users rely on our tool for its combination of powerful Excel automation and strict privacy protection.

Bryntum's answer:

  • Apple
  • Netflix
  • SpaceX
  • Intel
  • Disney
  • US Navy
  • Airbus
  • American Airlines
  • AstraZeneca
  • Coca-Cola

Over 5,000 customers in 80 countries: https://bryntum.com/company/customers/

User comments

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What are some alternatives?

When comparing Excel Whisper and Bryntum, you can also consider the following products

Jspreadsheet - JavaScript Data Grid Plugin with Advanced Spreadsheet-like Controls

Mobiscroll - UI controls for great web & mobile developers. Use it for progressive web and hybrid apps with plain JS, jQuery, Angular, React and KO.

jExcel - jExcel official website, the javascript spreadsheet. Create amazing tables with jExcel.

DHTMLX - JavaScript Library for cross-platform web and mobile app development with HTML5 JavaScript widgets. Easy integration with popular JavaScript Frameworks.

Google Sheets - Synchronizing, online-based word processor, part of Google Drive.

Schedule-X.dev - Modern JavaScript Event calendar for React, Angular, Vue and plain JS. Modern alternative to Fullcalendar. Drag & drop, dark mode, event resizing and more.