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one script tag

Add payments to any website. Connect your bank account, get a script tag, start collecting money. No backend code.

<!-- One line. That's it. -->
<script src="bittercheckout.com/widget.js" data-site="yours"></script>
Get started

How it works

1

Connect

Sign up, link your bank account, define what you're selling.

2

Embed

Drop one script tag on your site. Widget handles the rest.

3

Sell

Card, Apple Pay, Google Pay. Money goes to your bank.

Light & dark mode

Widget auto-detects your site's color scheme.

Mobile-first

Bottom sheet on phones, centered modal on desktop.

No backend

Stripe session creation and webhooks handled for you.

Your keys or ours

Bring your own Stripe keys, or use managed Connect.