No, a small library does not need a barcode scanner. A scanner speeds up two specific jobs and changes nothing else about how the library works. For a few hundred books lent to people you know, typing or searching is fast enough, and the money is better left unspent.
It is worth understanding exactly what a scanner does and does not do, because the question hides two different things.
What a scanner actually does
A barcode scanner does one job: it turns a number into a keystroke. Point it at a barcode and it types the digits for you. That is genuinely useful in two moments.
- Cataloguing, when scanning an ISBN is faster than typing thirteen digits and looking the book up.
- The lending desk, when scanning a copy is faster than searching for the title.
That is the entire benefit. It is a speed convenience at the point of entry, nothing more. It does not track loans, it does not know who borrowed what, and it is not what makes a library system work.
Where it helps and where it does not
A scanner earns its place when volume makes typing the bottleneck. A school library checking out thirty children at lunchtime feels every saved second. A church shelf lending a handful of books a week does not.
For most small, volunteer-run libraries the queue is short and the collection is small, so searching for a title and clicking lend is already fast. Buying a scanner to save a few seconds on a quiet desk solves a problem you do not have.
Barcodes need to exist first
A scanner is useless without a barcode to scan. New books have an ISBN barcode, but older donated books often do not, and a printed ISBN identifies the title, not your specific copy. To scan your own copies reliably you have to print and stick a label on every book first, which is real work.
For a small library that labelling effort usually outweighs the time a scanner saves. Plenty of well-run small libraries never barcode anything and lend perfectly well by searching the title.
Lending without a scanner
A good small-library tool lets you find a book by typing a few letters of the title and lend it in a click. You record who took it and when it is due, and the copy returns to available when it comes back. No hardware involved.
Your Book Nest works exactly this way. You catalogue a book by typing its title and author, and lend any copy by searching for it, with no barcodes and no scanner anywhere in it. For a few hundred books, a search box and a click is faster than reaching for hardware. It is free for up to 100 books, and the home page is a live demo you can try with no sign-up.