Yes, you can run a small library on a spreadsheet, and many do. As a catalogue it is genuinely good: one row per book, columns for title and author, instant search, and nothing to learn. If your library is mostly a list of what you own, a spreadsheet is a sensible choice.
The limit is specific. A spreadsheet is a good catalogue and a poor lending record, and a library is a lending operation.
What a spreadsheet does well
For cataloguing, a spreadsheet is hard to beat for the effort involved.
- One row per book, with whatever columns you want.
- Sort and filter by title, author or category.
- Free, familiar, and editable by anyone who has used Excel or Google Sheets.
If nobody borrows anything, a spreadsheet could run your library indefinitely. The problem only appears when books leave the shelf.
Where it breaks
Lending is about change over time, and a spreadsheet is a static grid. Three things expose it.
- Who has what. You end up adding a "borrowed by" column, then a "due date" column, then editing them by hand on every loan and return. Miss one and the sheet lies.
- Multiple copies. One row is one book. If you own three copies, a single row cannot say one is out and two are in. People bolt on copy-one, copy-two columns and it gets ugly fast.
- Two volunteers at once. A shared file gets overwritten, or different people keep different copies, and the real state lives in nobody's version.
The tell-tale sign is a second list. When lending ends up tracked on a separate sheet of paper or a second tab, the spreadsheet has stopped being your system and become just the catalogue half of it.
The verdict
Use a spreadsheet while your library is a catalogue. Move to a lending tool when it becomes a lending operation, which is the first time you cannot reliably answer "who has this book and when is it due".
That switch is smaller than it sounds, because the spreadsheet already holds your catalogue, and a good tool imports it directly.
Where Your Book Nest picks up
Your Book Nest picks up exactly where a spreadsheet stops. You import your existing sheet, set copy counts for anything you hold more than one of, and you have proper lending: loans, due dates, returns, and a clear view of who has what.
It stays as simple as the spreadsheet was. No MARC, no fines, no forced patron accounts, and any volunteer can use it in the browser. It is free for up to 100 books, and the home page is a live demo you can try with no sign-up before you move anything.