Invoice & Quote Generator
Generate clean, professional invoices and quotes entirely in your browser. Features precise calculations, custom logos, live multi-page preview, PDF verification, and CSV/JSON export.
- No sign-up
- 100% private in browser
- Instant PDF export
- Multi-currency & tax
Issuer Information (From)
Customer Information (Bill To)
Line Items (2)
| # | Item Description | Qty | Unit | Unit Price | Tax Rate (%) | Amount | Actions |
|---|---|---|---|---|---|---|---|
| 1 | $1,980.00 | ||||||
| 2 | $2,508.00 |
Summary
Payment & Terms
Note: This signature line is not an electronic signature or certified digital service.
Design & Template
Disclaimer: This tool assists with document formatting and calculation. It does not provide legal, tax, or accounting advice. Please verify compliance with your local regulations.
About Invoice & Quote Generator
Solasu's Invoice & Quote Generator is a full-featured business productivity tool designed to create professional, ready-to-send estimates and invoices directly on your device.
Rather than a plain form, it delivers a complete end-to-end workflow: document type selection (Invoice or Quote), issuer and client details, itemized line entries, automated tax/discount/shipping calculations, design templates and logo branding, real-time multi-page preview, PDF generation, instant PDF structural verification, and multi-format exports (PDF, CSV, JSON, and print).
Your sensitive client records, banking details, and transaction amounts are never sent to external servers—all processing stays 100% inside your browser's memory.
Exact Financial & Tax Calculations Without Floating-Point Errors
To eliminate binary floating-point rounding errors inherent to JavaScript (such as 0.1 + 0.2 ≠ 0.3), calculations are computed using currency-specific minor units with strict commercial round-half-up logic.
Supports both tax-exclusive and tax-inclusive pricing, allowing mixed tax rates (e.g., standard, reduced, zero-rate, or exempt) on individual line items with automatic breakdown by tax rate category.
Seamless 1-Click Quote to Invoice Conversion
Easily convert an accepted price quotation into a final tax invoice with a single click.
All line items, quantities, client information, issuer details, payment terms, and custom notes are preserved, while automatically switching document terminology, replacing the quotation validity date with a payment due date, and assigning a distinct invoice number.
Intelligent Multi-Page Layout & Header Repetition
Whether your document has 5 items or over 100, the built-in pagination engine prevents awkward table row splitting across page boundaries.
Table headers repeat automatically at the top of subsequent pages, and financial totals, banking information, terms, and signature lines are cleanly positioned on the final page.
Automated PDF Verification with PDF.js
Upon PDF generation, the tool immediately reloads and inspects the binary output using an embedded PDF engine (pdfjs-dist) to verify structural integrity, match total page counts, and ensure key text elements like the document number and grand total are discoverable in the text layer.
A verification status badge gives you immediate confidence before sending files to clients or accounting teams.
Strict Zero-Storage Privacy & Enterprise Security
Client identities, prices, and bank account numbers are never persisted in cookies, localStorage, IndexedDB, or session storage. Closing or resetting the tab clears all data from memory.
Built-in security defenses protect against CSV formula injection (DDE attacks), JSON prototype pollution, and filename directory traversal.
Frequently Asked Questions
Is this tool completely free? Is an account required?
Yes, it is 100% free to use. No account registration, login, or subscription is required. Open the page and start generating documents immediately.
Are client details or financial amounts uploaded to a server?
No. All data processing, calculations, real-time rendering, and PDF generation occur strictly on your local device within the browser. Zero network requests are made with your data.
Does my data disappear when I close the browser? Is there auto-save?
To guarantee maximum confidentiality, data is never stored in browser storage (localStorage or cookies). To save your work for future editing, use the 'Export JSON' button, which can be re-imported anytime.
Can I convert a quote into an invoice?
Yes. Click 'Convert to Invoice' to transition from a quotation to an invoice. All line items, quantities, prices, and parties are retained while switching dates and assigning a separate invoice number.
Does it support multiple tax rates on a single document?
Yes. Each line item can have its own tax rate (e.g., 20%, 10%, 5%, 0%). The calculation summary provides a clear breakdown of taxable amounts and tax totals per rate category.
Can I switch between tax-inclusive and tax-exclusive pricing?
Yes. The Tax Calculation toggle lets you easily alternate between tax-exclusive (tax added on top) and tax-inclusive (tax extracted from gross item price) modes.
How are discounts calculated?
You can apply a discount either as a percentage (%) or as a fixed amount. The calculation follows a transparent sequence: Subtotal → Discount → Taxable Basis → Tax Computation → Additional Charges → Grand Total.
Can I add shipping fees or extra charges?
Yes. You can add shipping, handling, packaging, or service charges via the Additional Charges section, which are itemized in the summary and added to the grand total.
Can I include my company logo on the invoice?
Yes. You can upload PNG, JPEG, or WebP logo images. The image is processed locally and can be aligned to the left, center, or right of the document header.
What paper sizes and orientations are supported?
Standard ISO A4 and US Letter sizes are supported in both Portrait and Landscape orientations.
What design templates are available?
Choose from five professionally designed templates: Professional, Modern, Minimal, Corporate, and Compact, customizable with primary color presets or any custom hex color.
Will lengthy documents split properly across multiple pages?
Yes. The layout engine calculates row heights dynamically and applies clean page breaks so table rows are never severed mid-text. Table headers are automatically repeated on every subsequent page.
What does the 'PDF Verified' badge mean?
After compiling the PDF, the browser immediately parses the output using PDF.js to verify document structure, validate the page count, and confirm that the document ID and total amount are present.
Can I open the item details in spreadsheet software like Microsoft Excel?
Yes. The 'Export CSV' feature downloads an RFC 4180-compliant CSV file with a UTF-8 BOM, ensuring correct character display in Excel, Numbers, and Google Sheets.
What is CSV formula injection protection?
If item descriptions or client fields begin with spreadsheet formula symbols like '=', '+', '-', or '@', the tool prefixes them with a single quote to prevent malicious formula execution in spreadsheet software.
Can I reload and continue editing from a previously saved file?
Yes. Use 'Import JSON' to load a previously downloaded JSON file. All items, party details, notes, and design choices will be fully restored.
Can I print directly from my browser using Ctrl+P / Cmd+P?
Yes. Tailored print stylesheets (@media print) ensure that editing controls and navigation are hidden, producing a clean, high-resolution document printout.
Does the signature line provide a legally binding digital signature?
No. The signature box provides a visual space for physical handwritten signing or company seals after printing. It does not provide cryptographic e-signature or qualified timestamp services.
Does this invoice comply with my local tax authorities (VAT, GST, e-Invoicing)?
The tool provides standard fields such as Tax ID / VAT registration numbers and tax breakdowns. However, it does not guarantee compliance with specific regional fiscalization or e-invoicing mandates.
Which currencies are supported? Are exchange rates retrieved?
Major currencies including USD, EUR, GBP, JPY, CNY, KRW, INR, AUD, CAD, and CHF are supported, alongside custom currency symbols. No external currency conversion API is called.
Can I use this tool on a smartphone or tablet?
Yes. The responsive interface adapts seamlessly to mobile screens, featuring tabbed navigation and touch-friendly card layouts for editing line items.
Is Right-to-Left (RTL) script supported?
Yes. In RTL locales like Arabic, the interface flips appropriately, while keeping technical numbers, document identifiers, and currency codes properly aligned.