Free tools
Free Tools for Ecommerce Promotions
Small, free tools for running better sales — a countdown timer, a discount calculator, a coupon-code generator and the year’s sales calendar. No sign-up. When you’re ready to put an offer on your site, that’s what OfferBanner is for.
- Free tool
Countdown Timer Generator
Make a countdown timer and embed it on any website — free, no sign-up.
- Free tool
Ecommerce Sales Calendar
Every promo date of the year — Black Friday, Cyber Monday, Diwali, 11.11 — with live countdowns.
- Free tool
Discount Calculator
Work out a sale price, the amount saved, and what a discount does to your margin.
- Free tool
Coupon Code Generator
Generate memorable promo codes in bulk — then mint the real ones in your Stripe.
From a tool to a sale
Run the whole promotion, not just the calculator
OfferBanner shows your offer as a banner on your site, creates the real discount code in your own Stripe account, and takes it down when the sale ends — set up once, by hand or through your AI agent.