Create custom spreadsheets, advanced grids, dashboards, reports, and data input forms with the comprehensive API
Leverage the powerful, high-speed calculation engine for your most complex calculations
Import and export your most demanding Excel .xlsx spreadsheets
Includes basic compatibility support for screen readers and ADA compliance for the NVDA for Windows, Windows Narrator, and VoiceOver for OS X screen readers.
With over 25 years of experience in creating award-winning spreadsheets for professional developers, we already know what you want and need. No other spreadsheet vendor can match that. Put our spreadsheet experience to work for you today.
A Complete Toolbox in One Spreadsheet Control
Leverage the extensive JS spreadsheet library API and powerful calculation engine to create analysis, budgeting, dashboard, data collection and management, scientific, healthcare, education, financial applications and more.
Complete Document Control
Optimized to work in the browser for large and complex spreadsheet models, you can secure, manage, control and help eliminate risk while keeping the same spreadsheet functionality and ease of use they love online.
Powerful Calculation Engine Includes 500+ Functions in 19 Languages
Code-Free with the SpreadJS Designer
Leverage the power of the included WYSIWYG SpreadJS Designer to quickly design a complex spreadsheet layout using a familiar UI with our desktop designer app - no learning curve required. You can also load your existing Excel .xlsx template files and start being productive immediately.
Deliver True Excel-Like Spreadsheet Experiences, Fast
Import, modify, and export your most complex Excel .xlsx spreadsheets. SpreadJS offers the most complete Excel-like experience, including pivot tables, charts, tables, shapes, sparklines, conditional formatting, filtering, and an extensive library with no Excel dependencies to create the most advanced data visualizations.