Load your spreadsheet
Drop in a CSV or Excel file. Each row becomes one document; each column becomes a placeholder you can use in your template.
One spreadsheet.
Hundreds of documents.
- Upload a CSV or Excel file
- Write your template once
- Download every PDF as one ZIP
100% local No uploads, ever
Privacy
Your data never leaves your computer.
No upload, no server, no account. Your spreadsheet, your template and the PDFs you generate stay in your browser the whole time — and disappear the moment you close the tab.
How it works
Three steps, start to finish
01 — DATA
02 — TEMPLATE
Write the template once
Compose the document once and drop placeholders in wherever they belong — or import an existing Word document to start from. A visual editor, no scripting required.
03 — GENERATE
Generate and download
One click renders every PDF and zips them together, with file names you control.
Features
Built for long lists
Runs entirely local
Fine for sensitive data — contracts, invoices, customer records.
CSV or Excel
Up to 5 MB at a time. The first row doubles as placeholder names.
Automatic placeholders
Every column becomes a placeholder, ready to drop into the template.
Fixed and computed fields
Add values shared by every document, like today's date, without touching the sheet.
One ZIP, every file
All generated PDFs, named the way you choose, in a single download.
Preview before you generate
Check how each document will look before rendering the full batch.
FAQ
Questions, answered
Does my data get uploaded anywhere?
No. The file is read in your browser and never transmitted. All PDF generation happens on your machine.
How much does it cost?
Nothing, for now — boolk is completely free during this launch.
What spreadsheet formats are supported?
CSV and Excel, up to 5 MB. The first row can be used as column and placeholder names.
Can I use my own document template?
Yes — write or paste it into the editor and place placeholders wherever needed, or start from a saved template.
How many documents can I generate at once?
One document per row — from a handful of files to hundreds, all in a single ZIP.
Do I need to install anything?
No — boolk runs entirely in the browser. Just open the page.