SnapInvoice — Best Invoice Maker by Muktar Oyewumi

SnapInvoice is an offline invoice maker that runs entirely in the browser. Open it from the toolbar, click any text on the invoice and type. No account, no server, and no data ever leaves the user's device. Just click through and have your invoice printed. You can use it for personal and professional purposes... whatever it is you need it for.

Features

• Click-to-edit invoice editing, with logo, signature and bank details saved for reuse
• Six invoice designs: three free, three unlocked with PRO
• Automatic totals, VAT and discounts, with the total written out in words
• 51 currencies, including NGN, USD, EUR and GHS
• Export as PNG image or print-ready A4 PDF
• WhatsApp sharing enabled- strictly user-initiated
• Magic tools: turn a plain sentence into priced line items, or draft a payment reminder
• All fonts bundled locally; the add-on makes no network requests

Data and permissions

The extension requests no permissions, contains no content scripts and no background scripts, and declares data_collection_permissions required ["none"] in the manifest. Invoice data is stored only in the browser's localStorage.

Monetization

The free version is a complete, functional invoice tool. An optional one-time PRO upgrade (three additional templates and watermark removal) is purchased on an external site (Selar). This is disclosed here and the payment checkbox has been ticked.