When you don't want your spreadsheet in the cloud.
For the actual spreadsheet: LibreOffice Calc or Numbers. For the specific things people build spreadsheets to do — budgets, invoices, KPIs — a purpose-built Blade is usually less pain.
Spreadsheets are the universal solvent. They're also where good ideas go to become a 47-tab file no one wants to maintain. This page splits the two: when to use a real spreadsheet, and when a shaped tool from Offline.Ltd replaces the spreadsheet entirely.
For an actual spreadsheet: LibreOffice Calc
Free, open-source, offline, opens .xlsx cleanly. Numbers on Mac is also fine. Google Sheets is convenient and cloud-bound — if that trade-off is fine for your work, use it.
For household money: The Household Purse
Most "family budget" spreadsheets are trying to reinvent envelopes. The Purse just is envelopes.
For invoices and freelance books: Freelancer's Pond
Invoice builder, expense logger, time tracker, client CRM — all in one file. A spreadsheet can do it. This is what happens when you finish building the spreadsheet.
For KPIs and a small company: Founder's Engine
Revenue, runway, roadmap — the spreadsheet that eventually becomes a dashboard, pre-built.
What to reach for
Common questions
Do you make a general spreadsheet?
No, and we don't intend to. LibreOffice Calc is already excellent at that job and free. What we make is opinionated, purpose-built alternatives to the specific spreadsheets people keep re-building.
Can I export as CSV?
Yes — every Blade and tool that holds tabular data exports CSV.
What about formulas?
The Blades run their own calculations in-file. You don't write formulas; the tool already knows.
Google Sheets vs LibreOffice?
Sheets is convenient, cloud-bound, and Google reads it. Calc is free and offline. Pick per document, not per lifestyle.