Free, no-signup tools for freelancers and small businesses: a website health check, an invoice and quote generator, and calculators for VAT, margin and markup, and payment fees. Everything runs on this page, with nothing to install and no account to create.
Website Health & Security Checker
Scans any domain’s HTTPS setup, SSL certificate, security headers and email authentication, then explains every finding in plain English with a clear next step.
- HTTPS & redirects
- SSL/TLS certificate
- Security headers
- SPF, DMARC & MX
Finance tools
Calculators and generators for freelancers and small businesses. They run entirely in your browser.
Builds a clean, itemised invoice or quote and exports it straight to PDF.
Open tool →FinanceVAT & Sales Tax CalculatorAdds VAT, GST or US sales tax to a figure, or works back to the tax-excluded figure from a tax-inclusive total.
Open tool →FinanceMargin & Markup CalculatorConverts between margin and markup and shows the selling price for a target gross margin.
Open tool →FinanceFee & Net Payout CalculatorWorks out the net payout after a processor or marketplace fee, or grosses up to a target payout.
Open tool →Security tools read a website’s public configuration only. Finance tools run entirely in your browser, so the figures you enter are never sent to our servers.