100% Free Quote and Invoice Software
Create professional quotations and turn them into GST-ready invoices in a single, intuitive tool. Branded quotes, one-click quote-to-invoice, payments and reports — free forever, on web and mobile.
Quotation
GST Invoice
From quotation to paid invoice — without leaving the app
One connected flow means no re-typing, no missed items and no separate billing tool.
1 · Create the quote
Build a branded, GST-ready quotation in seconds — or let the AI Sales Assistant turn an RFQ (PDF, Excel, image) into one in ~10 seconds.
2 · Convert to invoice
Won the deal? Turn the approved quote into a tax invoice in one click — no re-typing line items, taxes or customer details.
3 · Get paid & track
Send the invoice, record payments, and watch dues, receivables and sales reports update automatically.
Quotation features
- AI Sales Assistant: turn an RFQ into a quotation in ~10 seconds (a market first)
- Branded quotations with product images, printed on your letterhead
- Multi-currency quotations with a live conversion rate
- Line items, item groups & Bill-of-Materials (BOM) inside a quote
- Additional charges, line & overall discounts, GST taxes
- Revisions with history, approvals and quote-expiry tracking
Invoicing features
- One-click quote → GST invoice — items, taxes & customer carry over
- Also generate a proforma invoice or sales order from the same quote
- GST tax invoices & e-invoicing, print- and email-ready
- Payments, part-payments, dues and receivables in one place
- Print on letterhead, download as PDF or Excel
- Automatic sales, tax and outstanding reports
Also included — free
Email, SMS, WhatsApp & voice
Send quotes and invoices — and follow-ups — by email, SMS, WhatsApp or automated voice call.
Compare prices
Export a quotation with multiple price lists side-by-side in Excel.
Assign & approve
Assign to sales users, notify a manager for approval, and track status.
Follow-ups & conversation log
Schedule reminders and keep every client conversation on the record.
Multi-currency
Quote and bill export customers in their own currency.
Web & mobile
Everything in the browser and the native mobile app, always in sync.
Why a combined quote & invoice tool
One tool, not two
Stop juggling a quoting app and a billing app. Quote and invoice share the same customers, items and taxes.
Zero double entry
The invoice inherits everything from the quote — fewer errors, faster billing, cleaner books.
100% free
Every quoting and invoicing feature is on the free-forever plan. Unlimited records, no credit card.
Web & mobile
Raise quotes and invoices from your desk or the native mobile app — always in sync.
Free Quote and Invoice Software vs Quotation software vs Invoice software
A standalone quotation tool only quotes; a standalone invoice tool only bills. Free Quote and Invoice Software does both — in one 100% free, connected flow.
| Capability | Free Quote and Invoice Software100% free | Quotation software | Invoice software |
|---|---|---|---|
| Create branded quotations | |||
| AI turns an RFQ into a quotation (~10s) | Limited | ||
| Quote approvals, revisions & expiry | |||
| One-click quote → invoice | |||
| GST tax invoices & e-invoicing | |||
| Payments, dues & receivables | |||
| Shared customers, items & taxes | Limited | Limited | |
| No re-typing between quote & bill | |||
| Sales, tax & outstanding reports | Limited | ||
| Web & mobile apps | Limited | Limited | |
| Price | 100% Free | Often paid | Often paid |
30+ quotation templates, in every colour
Choose from 30+ professionally designed quotation templates with various colour options — blue, crimson, emerald, indigo and more. Pick a theme, add your logo and letterhead, and send a quotation that looks like it came from an enterprise sales team. Every template is free.
Quotation with product images
Ocean BlueLine items shown with product photos, UOM and tax — ideal for retail and distribution.
Online quotation generator
CrimsonClean multi-item layout with amount-in-words — built for fast online quoting.
Quotation maker
EmeraldElegant green theme with letterhead branding — perfect for a polished first impression.
- 30+ ready-made templates
- Multiple colour themes
- Print on your letterhead
- Export to PDF & Excel
Quote & invoice software — frequently asked questions
Is the quote and invoice software really 100% free?
Yes. Creating quotations, converting them to GST invoices, recording payments and running reports are all included on Catalystk's free-forever plan — unlimited records, no credit card required.
Can I convert a quotation into an invoice automatically?
Yes. Once a quote is approved, one click turns it into a tax invoice — all line items, quantities, taxes and customer details carry over, so there is no re-typing.
Are the invoices GST-compliant?
Yes. Catalystk generates GST-ready tax invoices and supports e-invoicing, with your own branding and letterhead.
Does it work for small businesses?
Yes. It is designed for small and growing businesses that want one simple tool to quote, invoice and get paid — on both web and mobile.
Can the AI create a quotation from an RFQ?
Yes. Drop in an RFQ as a PDF, Word, Excel or image and the AI Sales Assistant builds a branded, ready-to-send quotation in about 10 seconds, which you can then convert to an invoice.
Ready to run your business on one platform?
Join thousands of growing businesses using Catalystk. Set up in minutes — free forever, no credit card required.