Library Card Generator
Member details, borrowing entitlement, and validity — on a card that prints at true CR80 size and fits a standard cardholder.
Putting the circulation rules on the card itself
The entitlement line is the useful part
A library card that only shows a name duplicates the ID card. What makes a library card operationally useful is the entitlement printed on its face — how many books the member may hold at once and for how many days — because that is the rule the issue desk applies at every transaction. Typical school practice is 1–2 books for 14 days for students and more for staff; both numbers are fields here and are validated as real numbers.
The member ID ties the card to the accession register or library software record, which is where the actual issue/return history lives.
True card size, two printing routes
The card prints at CR80 / ISO 7810 ID-1 size (85.6 × 54 mm) on a dedicated print page, so the Save-as-PDF output feeds a PVC card printer directly, or prints on photo paper for cutting and laminating. Different member types (student, staff, faculty, external) are indicated on the face so desk staff can apply differing entitlements at a glance.
Frequently asked questions
What should a library card show?
The library's name, the member's name and photo, member type, the card/member ID, the borrowing entitlement (books at a time × loan days), the validity period, and the librarian's signature line. The entitlement line is what the issue desk actually uses daily.
What are typical borrowing limits for a school library?
Commonly 1–2 books for 14 days for students, and 4–5 books for 30 days for staff — but this is entirely a library-policy decision, which is why both numbers are editable fields validated as real numbers rather than fixed text.
What size does the card print at?
True CR80 / ISO 7810 ID-1 — 3.375 × 2.125 inches (85.6 × 54 mm), the standard card size that fits cardholders and PVC card printers. The print output is a page sized exactly to the card.
Can one card cover both ID and library functions?
Small schools sometimes combine them; the drawback is that entitlements and validity differ (a library membership may be suspended for fines while the ID remains valid). Most institutions keep them separate — the Student and Staff ID Card Generators produce the matching companion cards.
How do libraries handle lost cards?
Standard practice: report, verify pending issues against the member record, charge a replacement fee, and issue a new card with the same member ID (or a suffixed one) so history stays linked. Keeping the member ID on the card face and in the register is what makes this painless.
For developers & AI agents
The Library Card Generator is also available as a free, unauthenticated JSON API — no API key, no sign-up, CORS enabled for all origins. Send a GET request with the parameters below and receive the computed result as JSON, including the source of the format or formula used. Invalid input returns HTTP 400 with a JSON { "error": "..." } body.
GET https://knwdle.com/api/tools/library-card-generator| Parameter | Required | Description |
|---|---|---|
memberName | Yes | Member's full name |
memberId | Yes | Library card / member ID |
memberType | No | Student / Staff / Faculty / External member |
booksAllowed | No | Books allowed at a time (number) |
loanDays | No | Loan period in days (number) |
Request:
GET https://knwdle.com/api/tools/library-card-generator?memberName=Riya%20Meena&memberId=LIB%2F2026%2F0412&memberType=Student&booksAllowed=2&loanDays=14
Response:
{
"error": "Missing required parameter: memberName"
}