# BillingHub > Invoicing for people who bill occasionally: buy credits once and > spend them as you send. No monthly subscription, and estimates and > quotes cost nothing to send. ## Tools - [Free invoice generator](https://billinghub.online/invoice-generator): fill in an invoice and download the PDF. No account. - [Free estimate generator](https://billinghub.online/estimate-generator): price a job and send it as an estimate. No account. - [Free quote generator](https://billinghub.online/quote-generator): a fixed-price quote, same terms. ## Templates by trade - [Invoice templates](https://billinghub.online/invoice-template): laid out the way each trade bills. - [Estimate templates](https://billinghub.online/estimate-template): laid out the way each trade prices work. - [Quote templates](https://billinghub.online/quote-template): for a price you are prepared to stand behind. ## Reference - [Guides](https://billinghub.online/guides): how invoicing, estimates and the paperwork around them actually work. - [Pricing](https://billinghub.online/pricing): what a credit costs and what it covers. - [Invoice cost calculator](https://billinghub.online/invoice-cost-calculator): what each invoicing plan actually costs per invoice you send, priced against every plan we could find. ## Notes - Every page above is server-rendered; nothing here needs JavaScript to read. - Prices and figures live on the pricing page. Guides avoid year-specific numbers on purpose, and link to the IRS or SBA where one is unavoidable.