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SpreadJS - Fintech Applications

JavaScript Spreadsheets to Create Fintech and Financial Applications

With SpreadJS’ expansive API and deep feature set, you’ll effortlessly create cloud-based custom accounting, risk analysis, and other financial reporting solutions.

  • Create spreadsheet applications for Budgeting and Forecasting, Auditing, Taxation, Financial Planning and Analysis, and more
  • Leverage the comprehensive API to automate repetitive accounting processes and better control risks
  • Write custom functions and algorithms to create "What if?" models and scenarios
  • Calculate risk-adjusted costs, income, and other financial calculations with the high-speed calculation engine
  • Create spreadsheet applications for Budgeting and Forecasting, Auditing, Taxation, Financial Planning and Analysis, and more
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Complete Toolbox

A Complete Financial Toolbox in One Spreadsheet Control

Use the extensive JavaScript spreadsheet API to collect and manage data and create custom analytics, dashboards, scientific, and financial applications.

Built-in Functions

Full Excel Compatibility and Powerful Calculation Engine With 500+ Functions

With full support for Excel import/export and more built-in functions than other JavaScript and custom spreadsheets, your computing power is optimized for big data and complex calculations.

JavaScript Spreadsheet Designer

Code-Free Extensibility and Customization With the Spread Designer Apps

Instantly add spreadsheets, charts, shapes, and tables to your financial dashboard with the SpreadJS Designer for desktop and web.

Browser and Platform Independent

Browser and Platform-Independent

This client-side component works in Windows, Linux, Mac, Android, and iOS and is tested for all modern browsers.

Data Visualization

Visual Insight With Sparklines, Charts, and Shapes

Your financial apps and dashboards have never been this personalized. Show trends with sparklines, dig into details with charts, and draw data flows with our 60+ built-in shapes—it’s up to you.

Pure JavaScript Support

Pure JavaScript With TypeScript and Angular Support

With no external libraries or frameworks, like jQuery, your JavaScript spreadsheets are light, customizable, and straightforward in VSCode—and include support for Angular, React, and Vue.

JavaScript Pivot Tables

Create JavaScript PivotTables

SpreadJS includes full support for Pivot Tables, including the import and export of Excel pivot tables. This optional deployment add-on is a powerful data analysis tool used to group, calculate, summarize, and present large amounts of data.

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Design JS Spreadsheets

Design JS Spreadsheets

Instantly design JavaScript Spreadsheets with an Excel-like Spreadsheet Designer. Developers can use the Desktop Designer App to create their spreadsheets or offer the same ribbon bar and UI functionality by embedding Spread’s optional Designer Component Add-on.

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Create Interactive JavaScript Dashboards

Create Interactive Dashboards

Easily create dashboards that quickly provide a snapshot of your business data.

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JavaScript Financial Reports and Statements

Financial Reports and Statements

Create JavaScript Spreadsheets for financial, budgeting/forecasting, scientific, engineering, healthcare, insurance, and many other similar business applications.

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Grid-Based Input Forms

Grid-Based Input Forms

Easily create complex data input and other similar structured forms that users can complete online.

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JavaScript Sparklines

Visualize Data with Sparklines

Embed Sparklines into any cell to quickly visualize trends in data, such as increases and decreases, minimum and maximum values, stock levels, costs, and more.

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JavaScript Custom Shapes

Custom Shapes

Use custom and data driven shapes to create interactive applications, such as a car insurance claim.

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JavaScript Business Dashboard

Business Dashboards

Create business dashboards for your JavaScript applications, such as presenting a retail metric summary.

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JavaScript Business Report

Business Report

Create business reports for your JavaScript applications, such as an account receivable report.

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JavaScript Healthcare Medical Dashboard

Healthcare Medical Dashboard

Create dashboards for your JavaScript applications, such as a medical or healthcare summary.

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Build Your JavaScript Financial App With a Broad Feature Set

Advanced Calculations

SpreadJS includes a comprehensive Calculation Engine that supports 500+ built-in functions, custom functions, arrays, dynamic arrays, formula textbox, localized languages function names, and more⁠—helping to create any financial formula.



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SpreadJS provides support for 11 chart groups, 30+ chart types, trendlines, and combo charts. Set chart layouts, customize elements, and combine chart types to evaluate financial information, perform stock analysis, present sales revenues, and much more.



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No-Code Design with Spread Designers

Take full control over your spreadsheet's design with the SpreadJS Designer. Create workbooks from scratch or import your own Excel .xlsx files. Edit in an Excel-like WYSIWYG interface to help you create financial apps in no time. Embed the designer's ribbon tool bar in a JS app using SpreadJS's Designer Component Add-on



Tables make it easier to manage and analyze related spreadsheet data. SpreadJS supports AutoExpand, conditional formatting, data validation, context menus, fixed headers, table resizing, navigation, a total summary row, and more.


Import and Export Excel Files

Complete support for importing and exporting your Excel files. Load your most complex Excel (.xlsx) files, make changes, and export back to an Excel file or save to a database.



Sparklines provide a graphical representation of your data embed. These small sparkline charts enable any cell to quickly show trends in your data, such as increases and decreases, minimum and maximum values, stock levels, costs, and more.

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Use the built-in Excel-like filter dialog to allow users to automatically filter data. Take advantage of creating custom filters to show and hide relevant data based on your application's needs.


Cell Types

SpreadJS includes various cell types that you can apply to any cell. Define the type of information that can be entered and displayed in any cell or use predefined dropdowns to make it easier for users to select and enter valid data.

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Conditional Formatting

Use conditional formatting to highlight important information automatically or spot trends in your data using specific values. SpreadJS supports the importing and exporting of many of Excels' rules.



Similar to filters, Excel-like slicers offer an intuitive, visual way to filter spreadsheet data. Available slicers include table, item, chart, aggregation, and custom slicers such as those used on consumer websites.


Dynamic and Spilled Arrays

Dynamic array support is used to replace the array formula. Formulas with the potential to return multiple results refer to a dynamic array formula. Formulas returning numerous results are referred to as spilled array formulas. Use these to seamlessly build financial models within your spreadsheets.


Formula Auditing

SpreadJS provides extensive support for formula auditing. This allows users to display relationships between formulas and cells by tracing the precedent and dependent cells in the worksheet.


SpreadJS Designers


SpreadJS Desktop Designer

Desktop Spreadsheet Designer Application

Easily design JavaScript spreadsheets with SpreadJS’s Desktop Spreadsheet Designer App, a WYSIWYG spreadsheet designer, included with the purchase of SpreadJS. Quickly design complex spreadsheet layouts using a familiar UI. Users can load existing Excel .xlsx template files and start being productive immediately. Supports creating templates that can populate data at run-time. Export your finished spreadsheet to .ssjson, .sjs, or .xlsx to load into a SpreadJS application.

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Spreadsheet Designer Component

Spreadsheet Designer Component Add-on

The SpreadJS Designer Component is a separate optional deployment add-on package that allows JavaScript Developers to embed the same UI components and capabilities of the Desktop Spreadsheet Designer in their applications. Providing their end-users the ability to easily customize spreadsheets using a familiar UI ribbon, formula bar, status bar, side panels, and context menus directly from their app’s interface. The designer component includes AngularReact, or Vue wrappers, which provide the ability to embed the designer into your framework app easily.

The SpreadJS Designer Component is fully customizable, so developers can easily add, remove, and re-arrange buttons, tabs, and designer sections by adding, removing, or moving corresponding entries in the configuration file.

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Award-Winning Products and First-Class Support

Five Star Rating

"I have been using a various form of Spread back to the COM days. Spread is the most reliable spreadsheet that retrieves and stores data, whether interacting with a database or simply an Excel file. Try it out, and you will not go back to any other control"


Five Star Rating

"Great support through evaluation process, Spread is my favorite development add-in, adds great, high value capabilities to applications!"


Five Star Rating

"Excellent Products. I have been using their products for around 15 years. Always there to help."


ComponentSource Award 2023 Top 10 Product ComponentSource Award 2024 Top 50 Product

MESCIUS Spread is Trusted by the World's Leading Companies

MESCIUS Customers

"Thanks for providing the best [JavaScript] spreadsheet widget in the world, we're very happy customers. Your product has saved us a TON of time relative to other solutions we used in the past."

Jan Domanski, Labstep

"We have been using Spread in our desk and web products (PerpetualBudget) for over a decade. Not only are the Spread grids great controls but the support at GrapeCity [now known as MESCIUS] is the best. When you need them, they're there!"

Jim Spicer, Spicer-Baer Associates

"I haven't come across such a feature-rich solid Spread before. Thanks for giving such a nice component."

Adavesh Managaon, MVP, Visual C#

"Spread benefits my company because our clients can now see the immediate benefit the websites we create for them provide."

Michael Stark, Owner,