FastGrid vs FastSheet:
Data Grid or Web Spreadsheet?

FastGrid and FastSheet are closely related, but they solve different problems. FastGrid is a high-performance JavaScript data grid.

FastGrid and FastSheet are closely related, but they solve different problems. FastGrid is a high-performance JavaScript data grid. FastSheet is a web spreadsheet built on FastGrid. Both are designed for large-scale browser-based data work, but the right choice depends on how users interact with the data.

Choose FastGrid when your data is primarily record-based. This means your application works with rows and columns representing business objects such as orders, invoices, customers, products, transactions, logs, assets, tasks or events. Users need to sort, filter, group, search, edit, export and analyze structured records. The data usually comes from a database, API, JSON, CSV or backend system.

Start with the main decision

The right component is not the one with the longest feature list. It is the one that matches the primary way users work with data in your application.

How to think about the comparison

FastGrid is ideal when the grid behaves like an enterprise data table. It can replace slow HTML tables, legacy grid components or paginated admin tables. It is best for dashboards, analytics applications, operational tools and large internal systems where performance and responsiveness are critical.

Choose FastSheet when your data is primarily cell-based. This means users expect Excel-like behavior: formulas, formatting, cell references, multiple sheets, copy and paste from Excel, XLSX import and export, cell ranges, in-cell editing and spreadsheet-style navigation. The spreadsheet itself becomes the workspace.

What the choice means in practice

FastSheet is ideal for applications where users upload, edit, calculate and save Excel files directly in the browser. It is also useful for planning tools, financial models, reporting templates, calculation sheets, data preparation workflows and applications where users think in cells rather than records.

The practical difference is this: FastGrid is for structured data management. FastSheet is for spreadsheet workflows.

If users ask to show all records and let them filter or edit them, choose FastGrid. If users ask to open an Excel file and work with formulas and sheets, choose FastSheet.

Both components can be part of the same application. A business system may use FastGrid for operational data and FastSheet for forecasting, planning, imports or Excel-based workflows.

Decision checklist

• Choose FastGrid when your data is primarily record-based. This means your application works with rows and columns representing business objects such as orders, invoices, customers, products, transactions, logs, assets, tasks or events. Users need to sort, filter, group, search, edit, export and analyze structured records. The data usually comes from a database, API, JSON, CSV or backend system.
• Choose FastSheet when your data is primarily cell-based. This means users expect Excel-like behavior: formulas, formatting, cell references, multiple sheets, copy and paste from Excel, XLSX import and export, cell ranges, in-cell editing and spreadsheet-style navigation. The spreadsheet itself becomes the workspace.
• If users ask to show all records and let them filter or edit them, choose FastGrid. If users ask to open an Excel file and work with formulas and sheets, choose FastSheet.
• Choose FastSheet when your data is primarily cell-based. This means users expect Excel-like behavior: formulas, formatting, cell references, multiple sheets, copy and paste from Excel, XLSX import and export, cell ranges, in-cell editing and spreadsheet-style navigation. The spreadsheet itself becomes the workspace.
• FastSheet is ideal for applications where users upload, edit, calculate and save Excel files directly in the browser. It is also useful for planning tools, financial models, reporting templates, calculation sheets, data preparation workflows and applications where users think in cells rather than records.

Bottom line

The best choice depends on the core interaction: browsing large records, managing complex hierarchy, working with spreadsheet files or planning work on a timeline.