Checkout Page - Sell on your site with customizable checkouts. Tailor-made one page checkouts to sell digital products & services without an ecommerce store.

VATCalculatorUK.co.uk - FREE Online UK VAT Calculator that is able to reverse, remove, include & add VAT. This VAT calculator can calculate product prices both inclusive & exclusive VAT.

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

Vatulator - Online VAT calculator

Stripe Elements - Beautiful, smart checkout flows 💳💸

VAT-calc.net - VAT calculator is an online utility web application that allows users to add or remove value-added tax from any amount.