
Clean, branded invoices with Stripe + PayPal + crypto payment links baked in — built for freelancers who'd rather code than chase receipts.
Drop a PDF, image, scan, or email. Vendor / line items / totals / tax / dates parsed in under 4 seconds. 99.4% field accuracy.
Rules engine: vendor → cost-center → approver. Multi-step chains. Auto-skip when limits clear. Human-in-loop only when needed.
USD · EUR · GBP · BAM · all of them. Auto-FX at invoice date. Reports roll up to one base currency.
Monthly retainer? Set once, generate forever. Auto-create, auto-send, auto-mark-paid when payment hits.
CSV · QuickBooks · Xero · Sage · custom JSON. Every field timestamped + version-controlled. Auditor-friendly trail.
Runs in your browser or on your VPS. No SaaS lock-in. Your invoice data never touches a third-party server. Sovereign.
SaaS / monthly billing arrives in Phase 2 (Stripe per our roadmap). Until then: pay once via PayPal (vault: ) and own the tool.
Compare to Coupa / Tipalti / AvidXchange ($80k-200k+ /year, 3-6 month onboarding). One-time license. 20-minute install. Yours.
Unzip, open index.html in your browser. The whole tool runs client-side — no backend, no install, no cloud. Generate a sample invoice, export the PDF, see how the data flows. Then decide.
OS-INVOICE looks like YOUR brand (logo, color, custom domain). Clients pay 3x faster when the invoice feels professional. Plus crypto support, which PayPal doesn't do.