Free random string generator printables
Every sheet below is a free PDF you can print at home or at school. Open a sheet to see what is on it, then download it — no sign-up needed.
Printable Random Code PlannerPlan random codes by alphabet size, length, bits, possible values, and guess hit chance. Includes code format rows and codes issued.1 page · free PDF
Printable Code CardsOne-page code cards with columns for Code, Valid until, and Offer. Print, fill in, merge codes, and cut out for quick reference.2 pages · free PDF
Printable Test Data Planning SheetPlan field names, allowed characters, patterns, and edge cases before generating test strings with this 2-page printable worksheet.2 pages · free PDF
Printable Security Checklist for CodesOne-page security checklist for codes and tokens, made for reviewing sensitive strings, access data, and basic handling steps.1 page · free PDF4 files · XLSX, PDF, DOCX
Get every sheet: Random Code and Test Data Pack
This sheet plus 3 more in one download, with the editable Excel and Word files. Coupon code planning workbook with entropy and guess-risk formulas, a printable code card template, a test data planning sheet and a security checklist for codes and tokens.
$5.00 USD, one-time 4 files · about $1.25 each
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