Feed Rule Playground
This is the actual engine inside Feedrou. Combine your product fields with functions — capitalize, replace, strip HTML, even reprice with math — and watch the result update live against a sample product. Type { to insert a field.
Sample product
Click Insert field to drop in a product field, then Add transformation to chain functions like capitalize, replace or strip HTML. Click a chip to edit it.
Output
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Run rules like this across your whole catalog
In Feedrou you map each attribute with rules exactly like these — and they run on every product automatically, re-running whenever your catalog changes. On Pro, our team builds them for you.
Common questions
What is this?
It's the real transformation engine that powers Feedrou's feed rules, running in your browser. Anything you build here you can apply across your whole catalog inside the app.
What functions can I use?
Text functions like upper, lower, capitalize, capitalizeAll, replace, append, prepend, kebab and stripHtml — chained with a dot — plus arithmetic for things like channel-specific pricing. For example {title.capitalizeAll()} or {price * 1.2}.
Can I apply this to my real products?
Yes. In Feedrou you map each target attribute with rules like these and they run on every product automatically, re-running whenever your catalog changes. On the Pro plan our team builds the rules for you.