Spreadsheet Power,
Excel-Compatible
The spreadsheet engine built for your tech stack.
Launch faster. Ship more. Skip the grid rewrites.
What Makes
SheetXL Different
We are more than a spreadsheet or a grid. We are a complete ecosystem built for speed, scripting and Excel compatibility. Here is what sets us apart.
Excel Compatible
Use your existing spreadsheets
— they just work.
400+ functions, seamless imports, copy-paste support and 375+ shortcuts & UI gestures.
Instant Integration
SheetXL.attachStudio('#sheetxl')
— and you're live.
Bring spreadsheet features to your app in 1 line of code.
Unmatched Performance
Autofill 1,048,576 rows Excel's row limitwith formulas in 0.7s
— even on a 4-year-old phone.
Optimized for speed with columnar storage, vector ops and in-browser execution.
Effortless Customization
Realtime scripting
Add custom functions directly inside your spreadsheet. No build steps or reloads.
Secure & Self-Contained
Data never leaves your device.
Runs 100% client-side. No external calls, no server processing and no surprises.
MIT Licensed & Open Source
Fork it, extend it, or use it as-is. No vendor lock-in.
Open-source UIs, import/export tools, and built-in formula functions
— all yours to extend.
Why I Built SheetXL
For years, I kept ending up in the same frustrating role:
full-time data-grid maintainer.
I was stuck in the Data Grid Trap.
Data-grid components
Spreadsheet apps
My teams needed to solve business problems, yet we spent our time on endless rewrites of spreadsheet features.
...so I built SheetXL. To give you both power and embeddability.
SheetXL
Data grid
Spreadsheet App
Take the Next Step
Whether you’re ready to build, want to connect with our community, or simply support the project, here’s where to start:
