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Saysike — The open-sourced shopping tool

Saysike is a free & open-source browser extension that works silently in the background while you shop — automatically finding coupon codes, checking whether the same item is cheaper elsewhere, and alerting you when a product you're watching drops in price. No setup. No nonsense. Just savings.

What Saysike does

Install it once and keep shopping as you usually. Saysike will tell you when coupons & offers come up.

→ Instant Coupon Codes
Saysike automatically searches for every working coupon code available for that store and surfaces the best one. No more opening multiple tabs, wading through affiliate coupon sites, or copy-pasting codes that don't work. It just finds you the discount and applies it.

→ Price Comparison Across the Web (coming soon)
Viewing a product? Saysike scans billions of listings to check whether the exact same item is available cheaper anywhere else online — across retailers, marketplaces, and independent stores — so you always know you're getting the best price before you buy.

→ Price Drop Alerts (coming soon)
Bookmark any product and Saysike monitors its price history across millions of stores. The moment it drops, you get notified. No more checking back manually or kicking yourself because you bought something last week at a price it no longer sells for.

→ Full Price History (coming soon)
See how a product's price has moved over time so you can judge for yourself whether a "sale" is genuine or just a manufactured markdown. Make buying decisions with the full picture.

How it works

Install the extension — it takes seconds, no account required to get started
Shop on any store you already use
When Saysike finds a coupon, a cheaper price, or a price drop on something you're watching, a clean, unobtrusive notification appears — one click and you save
There's nothing to learn, nothing to configure, and nothing to remember. It just works.

What makes Saysike different?

Most shopping extensions are not really on your side. They hijack affiliate links from the websites you visit, quietly replacing other people's commissions with their own — even when they had nothing to do with your purchase. Some sell your browsing data to advertisers. Others manipulate which deals they show you based on which brands pay them the most.

Saysike is built on a completely different model — and the proof is that the entire extension is open source. Every line of code is publicly available on GitHub. There is nothing hidden.

We only earn a commission when Saysike genuinely helped you find a deal, and only if we have an affiliate relationship with that store. The price you pay is always identical. We don't maliciously replace other affiliate links. We don't manipulate the results you see. We don't sell your data. If we didn't actually help, we don't claim the credit.

Privacy by default

Saysike only accesses the pages it needs to function — supported retail sites — and only to surface relevant offers. We don't build advertising profiles. We don't track your general browsing. We collect only what is needed to make the product work, and nothing more. Full details are available in our privacy policy at saysike.com/privacy.

Free & Open Source

The extension code is fully open source. If you want to know exactly what Saysike does on your browser, you can read every line of it. We think that's how it should be — a tool that touches your browsing should be one you can actually verify.