Free Invoice Generator
Create a professional invoice in your browser: add line items, tax, and payment notes, then download it as a PDF. No signup, no watermark, and nothing is uploaded.
Opens your browser's print dialog. Choose “Save as PDF” as the destination. Everything stays in your browser; nothing is uploaded.
Invoice from hours you actually tracked
Chronoid records every app, website, and document you work in on your Mac, automatically and 100% locally. Assign the tracked time to clients, apply your rates and taxes, and generate invoice PDFs in one click. No more guessing hours at the end of the month.
Trusted by 450+ Mac users · $49 one-time, no subscription
What makes an invoice look professional
Clients pay faster when an invoice is easy to trust and easy to process. That comes down to a few practical details: a clear unique invoice number their bookkeeping can reference, an explicit due date rather than just an issue date, line items specific enough to answer questions before they are asked (“Homepage redesign, 12 hours” beats “design work”), and payment instructions right on the document so nobody has to email you asking for bank details.
Consistency matters more than decoration. Using the same format, numbering scheme, and terms on every invoice makes you look established and makes disputes rarer, because both sides can compare any invoice against the last one.
The invoice is the easy part
Generating the document takes two minutes. The expensive problem is what goes on it: freelancers who reconstruct their week from memory consistently under-bill, because the 5-minute client call, the quick revision, and the second look at a file never make it to the timesheet. Those fragments compound to hundreds of dollars a month at typical rates.
If you bill by the hour on a Mac, pair this generator with automatic time tracking. Chronoid logs your working time in the background with all data stored on your machine, so when you sit down to invoice, the hours are already there, organized by client and project. You can also work out what to charge with the free freelance rate calculator and total your time with the billable hours calculator.
Frequently Asked Questions
- How do I make an invoice for free?
- Fill in your details and your client's details above, add line items with a quantity and rate, set your tax rate if you charge one, and click Download PDF. Your browser's print dialog opens; choose "Save as PDF" as the destination and you have a professional invoice ready to email. No account, no watermark, and nothing you type leaves your browser.
- What should an invoice include?
- A proper invoice needs: your name or business name and contact details, the client's name and details, a unique invoice number, the issue date and payment due date, a description of each product or service with its quantity and rate, the subtotal, any tax, the total amount due, and payment instructions (bank details or payment link). Many jurisdictions also require a tax or VAT number if you are registered.
- How should I number my invoices?
- Use a consistent, sequential scheme and never reuse a number. Simple patterns work best: INV-001, INV-002, and so on, or a year-based scheme like 2026-001. Sequential numbering matters for your own bookkeeping and is legally required in many countries. If you invoice multiple clients heavily, a client prefix (ACME-014) keeps things scannable.
- When should I send an invoice and what payment terms are normal?
- Send the invoice as soon as the work is delivered or at the milestone agreed in your contract; the sooner you invoice, the sooner the payment clock starts. Net 14 or Net 30 (payment due within 14 or 30 days) are the most common terms for freelancers and small businesses. For new clients or large projects, consider asking for a deposit up front and invoicing the remainder on delivery.
- How do I know how many hours to put on the invoice?
- That is the hard part: an invoice is only as accurate as the hours behind it, and manually reconstructed timesheets routinely miss 10-20% of real billable time. Chronoid solves this on the Mac by tracking every app, website, and document you work in automatically and 100% locally. At invoicing time you review the timeline, assign the hours to clients and projects, and generate invoice PDFs with your rates and taxes built in.