Tools
Free calculators and generators
Use them free, no signup. Built with the same care we put into the invoicing product.
Free invoice generator
Make a professional invoice in 30 seconds. No signup. Share as a link, not a PDF attachment.
Open tool
Freelance hourly rate calculator
Turn the salary you want into the rate you should charge. Accounts for vacation, taxes, and unbillable hours.
Open tool
Follow-up email generator
Stop staring at the blank reply. Pick a tone, fill the blanks, paste it into Gmail.
Open tool
Invoice due date calculator
Pick an issue date and a payment term. Get the exact due date, with weekend and holiday handling.
Open tool
Invoice number generator
Get a clean, sequential invoice numbering scheme that scales. Pick a format, generate the next batch.
Open tool
Late fee calculator
Work out a late fee that is reasonable and within state caps. Flat, percentage, or APR.
Open tool
Freelance rate calculator
Turn the take-home you want into the hourly and day rate to charge, with self-employment tax, benefits, and unbillable time added back and sourced to the IRS and BLS.
Open tool
Salary to hourly rate calculator
Convert an annual salary into an hourly, weekly, monthly, and daily rate. Set your hours and weeks worked for an honest number.
Open tool
Time and a half calculator
Work out your overtime rate at 1.5x, the overtime and total pay, and the double-time rate, from your regular hourly rate.
Open tool
Currency converter
Convert at today's rate or the rate on the invoice's issue date. Built for cross-border invoicing.
Open tool
IBAN validator
Paste an IBAN. Get country, bank code, and a mod-97 check before the wire goes wrong.
Open tool
Sales tax and VAT calculator
Tax-inclusive or tax-exclusive, single or multi-line. Reverse-charge VAT for EU B2B is one click away.
Open tool
Project quote builder
Build a clean line-item quote with rate, hours, contingency, and tax. Send it as a real link.
Open tool
Invoice phrase translator
Decode the jargon. Get the plain meaning of any invoice term, with US, UK, and EU conventions side by side.
Open tool
Payment time predictor
Industry, client size, terms, and country in. A realistic days-to-pay estimate out, with the data sources cited.
Open tool
W-9 / W-8BEN form picker
Three questions, one answer. Find out which IRS tax form your US client needs from you.
Open tool
PO number format checker
Paste a purchase order number. We tell you if it matches a common AP format and which one.
Open tool
Free, no signup
Use any tool here without creating an account. The same flow becomes a real invoice when you're ready.
Built on the real product
These are not throwaway calculators. The invoice generator below is the same engine that powers our paid product, just embedded as a free tool.
Sharable as a link
Anything you make here gets a private URL. Send the link to your client instead of attaching a PDF that nobody can edit.