Products / Utilwell and Shopify
Tools we built
for ourselves.
Alongside client work, CHRISPS builds and runs its own products: Utilwell, a free toolkit for people who sell online, plus four Shopify themes and three Shopify apps. We're a Shopify Partner, so the same knowledge goes into every store we build.
Utilwell.com
Any job, done well.
Describe the job and Utilwell opens the right tool and gets it done. 59 tools, free to use, with no ads and no sign-up. Every tool runs in your browser, so your files never leave your device.
Visit utilwell.comMarketplace fees. Etsy, eBay and Amazon FBA fee calculators that show what you really keep from a sale.
Shopify tools. A CSV checker that finds import errors row by row, and a tool that turns supplier invoices into a Shopify import.
Pricing maths. Profit margin, wholesale, markup, break-even, ROAS and sales tax, with the working shown.
Files. Compress, merge and split PDFs, and resize product photos to Shopify, Amazon, Etsy and eBay sizes.
Private by design. Nothing you put into a tool is uploaded, and the little the site stores is cleared every hour.
Pro when you need it. Run a tool on up to 10,000 rows at once, save your settings and keep 30 days of results. $10 a month, or a $4 Day Pass.
Etsy Fee Calculator: every fee on a sale, and the profit after your costs.
Amazon FBA Fee Calculator: size tier, fees and profit with the 2026 rates.
Shopify Partner
We build on Shopify.
CHRISPS is a Shopify Partner. We design and build stores for clients, and we make our own themes and apps for the Shopify ecosystem, so we know the platform from both sides.
Start a Shopify projectBuild before you pay. We can build your store on a Partner development store, then hand it over when it's ready to launch and you choose your Shopify plan.
No shared passwords. On an existing store we work through Shopify's collaborator access, limited to the areas the job needs, and you can remove it at any time.
Themes and apps, not just setups. We write Shopify themes and apps ourselves, so custom features don't have to mean another monthly app.
Retail and trade. Bundles, B2B wholesale ordering, reviews and repeat sales, built with Shopify's own discounts, B2B and customer data.
Our Shopify products
Four themes. Three apps.
Made by CHRISPS for specific kinds of store, with the features stores usually pay extra apps for built in. None is on Shopify's stores yet: every theme is coming to the Shopify Theme Store.
Themes
Shopify theme
Tillhouse
One theme for retail and trade: a built-in bundle builder, a B2B trade portal and 8 complete store demos.
See Tillhouse
Shopify theme
Foilbay
For trading card shops: a singles finder, condition table, deck importer, buylist and game-night events, in 3 styles.
See Foilbay
Shopify theme
Dewline
For skincare, makeup and supplements: a routine quiz with no app, ingredient and supplement facts, and AM/PM routines.
See Dewline
Shopify theme
Blacklight
A dark, bold theme with optional age confirmation, product notices, spec tables, a terms checkbox and B2B ordering.
See BlacklightApps
Shopify app
Proofly
Bring your reviews with you. Import from your old app, moderate in one place, and show them with fast theme blocks.
See Proofly
Shopify app
Liftline
Find the customers who will buy again, approve one campaign at a time, and see the extra sales each email made.
See Liftline
Shopify app
Revenue Engine
For established stores: the next revenue opportunity, drafted for your approval and measured. Set up with you, by request.
See Revenue EngineNext step
Let's build your store.
Tell us about your products and customers, and we'll recommend the right starting point. Or try the free tools on Utilwell first.