Your everyday business toolkit
Free online invoice tools and calculators
All 60+ free tools on the site: invoice, quote and receipt generators, editable templates and 36 business calculators.
Every tool here runs free in your browser. The invoice, quote, receipt and other document generators, the calculators, PDF downloads and printing need no account. Only the editable template designs need a free InvoiceTools account, which also lets you save documents. Documents export as PDF, PNG, CSV or JSON and print on one page; calculators export a CSV breakdown. Search by name or browse the groups below.
60+ tools · Browse by task, or search by name
Create a document
18 tools
Invoice GeneratorBuild an invoice and export a print-ready PDF
Quote & Estimate GeneratorScope, deposit and validity, then send it
Receipt MakerProof of payment for a client's records
Late Fee CalculatorThe fee, the letter and the clause
Credit Note GeneratorTake an amount back off an invoice you already sent
Sales Order GeneratorConfirm what a customer ordered before you fulfil it
Proforma Invoice GeneratorA priced document before supply, for prepayment or customs
Timesheet CalculatorA week of hours, added up from the clock
Account Statement GeneratorEvery invoice, credit and payment on one page
Packing Slip GeneratorWhat is in the box, with no prices on it
Work Order GeneratorAuthorize a job and get it signed before it starts
Purchase Order GeneratorOrder materials from a supplier on paper
Cost EstimatorA range rather than a fixed price
Invoice CalculatorSubtotal, tax and balance due before you write it up
Recurring InvoicesThe same invoice on a schedule, without retyping it
Hourly Invoice CalculatorHours and a rate into a total you can send
Contractor Invoice CalculatorLabor, materials and job costs into one total
Project Invoice CalculatorA share of a fixed price, billed in stagesEditable templates
5 tools
Price the work
13 tools
Markup CalculatorCost to price, and the margin it leaves
Profit Margin CalculatorWhat you actually keep
Break-Even CalculatorHow much work covers fixed costs
Freelance Rate CalculatorDay rate from the life you want
Service Price CalculatorLabor, materials and overheadHouse Cleaning Price CalculatorPer visit and per monthHVAC Bid CalculatorEquipment, labor, markup and permit
Painting Estimate CalculatorJob price from room sizeLandscaping Price CalculatorArea, labor, materials and markupRoofing Estimate CalculatorSquares, waste, materials and laborHandyman Rate CalculatorHours, trip charge and minimum
Retainer CalculatorThe monthly fee, and what an hour over the cap costs
Billable Hours CalculatorWhat is left to sell after time off and adminTax and billing
4 tools
Chasing payment
10 tools
DSO CalculatorDays sales outstanding, and what shortening it releases
AR Turnover CalculatorThe turnover ratio and the days to collect behind it
AR Aging CalculatorWhat you are owed, split by how overdue it is
Collection Effectiveness CalculatorHow much of what you could collect, you actually did
Bad Debt CalculatorWrite-offs as a share of sales, and what they cost to replace
Invoice Due Date CalculatorThe date payment is actually due, for any terms
Business Days CalculatorWorking days added, subtracted or counted between dates
Days Past Due CalculatorHow late an invoice is, and what that age calls forLate Payment Cost CalculatorWhat an overdue invoice costs you in financing and admin
Payment Link GeneratorPayment links and a QR code with the amount filled inEveryday numbers
4 tools
On site
2 tools
More calculators
12 tools
Retainage Calculator For Progress Billingretainage calculator for pay applicationsEarly Payment Discount Calculator 2/10 Net 30 And Other Termsearly payment discount calculatorEstimated Tax Calculator For The Self-employed, 20262026 estimated tax calculator for freelancers and sole proprietors: self-employment tax, iMileage Reimbursement Calculator With The 2026 IRS Ratesmileage reimbursement calculator with the 2026 IRS rates, including the July 1 changeWhat Is A Late Invoice Costing Your Business?Estimate the direct financing and admin cost of an overdue invoice using your amount, daysTime Card CalculatorWork out hours worked from clock in, clock out and an unpaid break, get the week total, spSquare Footage CalculatorAdd up the square footage of up to six rooms or sections in feet, inches, yards or meters,Gravel CalculatorWork out how much gravel you need from length, width and depth, in cubic feet, cubic yardsMulch CalculatorEnter bed area, mulch depth and bag size to get cubic yards for a bulk delivery and bags fFuel Cost CalculatorWork out fuel cost for a trip from distance, miles per gallon or liters per 100 km, and thCubic Yard CalculatorTurn length, width and depth into cubic yards, cubic feet and cubic meters in feet, inchesDays Between Dates CalculatorCount the days between two dates, with the end day included or not, and see the answer in What each group is for
The tools are grouped by the job rather than by the kind of thing they are, because that is how people arrive. Someone pricing a job and someone splitting a restaurant bill are not doing the same task, even though both involve a percentage.
- Create a document makes the thing you send: an invoice, a quote, a receipt, a late fee letter. Each exports a print-ready PDF from your browser.
- Editable templates are 30+ finished designs in each gallery that you can type straight into, if you would rather start from a layout than from a form.
- Price the work is the arithmetic before the invoice: markup, margin, break-even, your rate, and what a job should cost.
- Tax and billing covers the numbers that land on the document itself.
- Everyday numbers and On site are the general ones, useful whether or not you are invoicing anybody.
A job from first call to paid
Some jobs only need a few of these tools. Here they are in the order a job uses them. Skip any step you don't need. A one-visit repair can go straight to the invoice.
- Price it first. The cost estimator gives a range before you have seen everything, with the assumptions written beside it.
- Turn the range into an offer. The quote generator holds the scope, what is left out, the deposit and a valid-until date.
- Authorize the work. A work order says what was agreed and gets a signature before anyone starts.
- Bill it. The invoice generator takes the same lines and adds tax, terms and a payment link.
- Record the payment. The receipt maker shows what was paid and how.
- Chase what is late. The late fee calculator works out the fee, and the page on when to send reminders helps with timing.
- Square up with a client. The account statement generator puts every invoice, credit and payment for one client on a single page.
All free, all in the browser
Every tool here is free with no account, no watermark and no limit. They run on your own device, so what you type stays there by default: no upload step means nothing to store and nothing to leak. The one exception is the optional AI helper on some generators, which sends your typed description to a server only when you press that button. More on both on the privacy details page.
If you want your details and documents saved between visits, an account does that and is also free. Everything above works perfectly well without one, apart from template designs, which need a free account.
Questions about the tools
Are all the tools free?
Yes. Every calculator, generator and template is free, with no watermark and no limit on how many documents you create. Calculators, generators and downloads need no signup, and template designs need a free account.
Which tool should I use to bill a client?
The invoice generator if you want to fill in a form, or the invoice templates if you would rather start from a finished design. Both export the same print-ready PDF.
What is the difference between the quote generator and the quote templates?
The generator is a form with a live preview and totals that calculate themselves. The templates are 30+ finished designs in each gallery that you type directly into. Same document, different starting point.
Do the calculators work outside the United States?
The document tools work anywhere and handle multiple currencies. Tax tools are country-specific: sales tax covers US states, VAT covers 40 countries, and each says which rules it applies.
Is anything I type saved?
Not by default. Filling in a document, running a calculator or picking a template stays in your browser with no upload step. Choosing AI drafting, saving to an account or sending a tracked link are opt-in features that do send data to a server; everything else does not.
Can I suggest a tool?
Yes, and it is worth doing. Email contact@invoicetools.com with what you would use it for.
Paying for an app and only using the invoicing? Eight comparisons. Everything here is free; the pricing page says what that covers.