Commercial paperwork that never leaves your browser.
Quote, order, ship, invoice, credit and reimburse - with the arithmetic, tax rules and vector PDF all executed locally. No account, no upload, no watermark, no per-document fee.
OPENDOCUHUB POS
10 Nov 2026 · 14:32
Order #8421 · Settled
1 x Brand identity scope450.00
6 x Frontend components510.00
1 x Vector PDF engine180.00
1 x IndexedDB storage0.00
Subtotal1140.00
Tax (8%)91.20
TOTAL PAID$1231.20
Valid receipt · Generated 100% in browser
Twelve documents, one lifecycle
Open any generator, fill the form on the left, watch the document render on the right.
Quotation Generator
Binding pricing commitments with a fixed validity window.
Estimate & Bid Sheet Maker
Range-based cost approximations for trades, contractors and agencies.
Proforma Invoice Creator
Preliminary invoices for shipment, manufacturing and advance payment.
Purchase Order Builder
Buyer-issued commitments with vendor, shipping and GL allocation.
Sales Order & Order Confirmation
Seller acknowledgements with allocation and backorder tracking.
Packing Slip Generator
Warehouse checklists with all monetary values suppressed.
Commercial Invoice Generator
Customs-grade invoices with HS codes, origin and Incoterms.
Tax Invoice Generator
Legally binding settlement demands with multi-rate tax and banking.
Credit Note Generator
Negative ledger adjustments linked to the original invoice.
Thermal Receipt Maker
80mm POS and 58mm mobile thermal receipt generator.
Standard Business Receipt Maker
Standard A4 & Letter business payment receipt with payment ledger.
Weekly & Monthly Timesheet Calculator
Daily hours, overtime tiers and billable flags with gross pay.
Mileage & Expense Claim Report
Itemized disbursements and statutory mileage in one audit sheet.
Browse by sector
541 verticals, each with a realistic line-item set, payment guidance and compliance note.
Home & Trade
44 verticals
Billed per job.
Construction & Real Estate
36 verticals
Billed per lot.
Industrial & Manufacturing
34 verticals
Billed per lot.
Automotive
20 verticals
Billed per job.
Agriculture & Environment
15 verticals
Billed per acre.
Creative & Marketing
36 verticals
Billed per project.
Professional Services
36 verticals
Billed per engagement.
Technology
36 verticals
Billed per milestone.
Finance & Legal
30 verticals
Billed per matter.
Retail & Ecommerce
44 verticals
Billed per units.
Health & Wellness
35 verticals
Billed per session.
Food & Hospitality
33 verticals
Billed per event.
Beauty & Events
28 verticals
Billed per booking.
Media & Entertainment
24 verticals
Billed per production.
Logistics & Transport
24 verticals
Billed per shipment.
Education & Nonprofit
24 verticals
Billed per cohort.
Travel & Tourism
20 verticals
Billed per booking.
Public Sector & Utilities
22 verticals
Billed per contract.
From quote to reimbursement
Settlement
Demands for payment, receipts and corrections
Four engines, no server round trip
WASM receipt OCR
Grayscale, Otsu threshold and a Tesseract worker parse vendor, date, total and tax without uploading the image.
Reverse-total solver
Back out tax from a negotiated total, then apportion the net across lines with Hare-Niemeyer rounding.
Jurisdiction engine
US, EU, DE, UK, CA and AU rules: reverse charge, §19 UStG, provincial tax, ABN/EIN/VAT validation.
Vector PDF pipeline
pdf-lib composes A4, Letter, dual-slip and 80/58mm thermal layouts in memory with embedded fonts.
The privacy model, stated plainly
- Document data is never sent to an API route.
- The vault is IndexedDB, scoped to this origin and device.
- Share links compress the payload into the URL fragment.
- Clearing site data deletes everything - export first.
Offline by design
A service worker caches the shell and the PDF engine. Once loaded, the editor keeps working on a plane, in a basement or behind a client firewall.
Questions that decide the tool
Read the pipelineIs OpenDocuHub really free and login-free?
Yes. There is no account, no paywall and no watermark. Every tool runs in your browser, so there is nothing to subscribe to and no server-side copy of your documents.
Where are my documents stored?
In IndexedDB inside this browser, under a database called OpenDocuHub_Vault. You can export the whole vault to JSON and re-import it on another device. Nothing is transmitted.
Are the PDFs vector or raster?
Vector. pdf-lib assembles the page in browser memory with embedded text and real rules, so the file stays selectable and prints sharply at any size.
Does it work offline?
After the first load the app shell is cached by a service worker. Documents, maths and PDF export keep working offline; only the optional receipt OCR needs the language model download.
Which tax jurisdictions are supported?
US state sales tax, EU VAT including reverse charge, German §19 UStG small-business rules, UK VAT, Canadian GST/HST/PST by province, and Australian GST with ABN validation.
Can I add rows and let the totals calculate?
Yes. Every generator is a form: add or duplicate line items, timesheet days, expenses and mileage, and the subtotal, tax, discounts, retainage and balance recalculate on each keystroke while the preview on the right updates.
Start with the document you owe someone.
OpenDocuHub is free, unwatermarked and works without an account - including offline.