Slayona — GST Invoice Generator
Client-side. Upload Orders CSV → get ready-to-print PDFs. No backend.
Reset Sequence
Export Settings
Import Settings
1) Configure once
Invoice Prefix (static text before 5-digit number)
Starting Sequence
Digits
5
6
We’ll remember this in your browser (localStorage). Change anytime.
2) Your Business Defaults
Seller (From) — Name
GSTIN
Phone
Address (multiline)
Bank — Account Name
Bank — Account No.
Bank — IFSC
UPI ID (optional)
Authorized Signatory — Upload Signature (PNG/JPG)
We’ll remember this in your browser. Transparent PNG recommended.
If an order lacks a value (e.g., Place of Supply), these defaults fill the gap.
3) Upload Orders CSV
Shopify
Amazon
Choose your source, then upload its CSV.
Preview First Invoice
Generate Combined PDF
Download Individual PDFs
Expected: Shopify / Amazon orders export (standard columns). Multiple line items supported.
#
Order
Created At
Customer
Items
Invoice
Merge existing invoice PDFs (N-up)
2 per A4
3 per A4
4 per A4
Merge PDFs
Upload multiple
single-page
invoices. We’ll pack them 2/3/4 per A4 page.
Notes
Financial Year is derived from order date (India): Apr 1 → Mar 31.
Inter-state ⇒ IGST. Intra-state (seller state = place of supply) ⇒ CGST + SGST split equally.
Tax rate defaults to 18% unless a line item tax rate is found in CSV.
Downloads a single multi-page PDF (one invoice per page). You can also preview the first invoice.