Home / Tools

Free · no login · client-side

Free tools for Shopify operators

Operator-grade models: multi-factor scores, stress scenarios, confidence, and playbooks. Not toy widgets. Nothing leaves your browser.

Inventory · ads Days of cover calculator

Windowed sell rate, promo noise, inbound POs, category bands, sell-out date, stress scenarios, stance + action plan.

Computes days of cover = units on hand ÷ (units sold ÷ window days × promo factor), then bands it by category and projects the sell-out date.

Decision engine Should I pause these ads?

Weighted pressure score, factor bars, funnel/CX inputs, stress tests, primary call + playbook.

Computes a pressure score out of 100 by adding weighted stock, restock, budget share, economics and demand factors, then turns it into a pause, cap or hold call.

Cost model Agency vs operator software

Three-path table, management overhead, replaceability mix, break-even software price, hybrid-friendly.

Computes the annual cost of the agency, hybrid and software paths from fees, founder hours and coordination overhead, then the monthly software price at which software breaks even.

SEO Free Shopify SEO title and meta checker

Score titles and descriptions with SERP preview. Offline.

Scores a title and description out of 100 from character length, pixel width in Arial (580 px title, 920 px description), keyword placement and structure.

Optimisation Free Shopify optimisation checklist

Catalogue, paid feeds, measurement, ops. Tick and score.

Computes score = ticked items ÷ 17 × 100, saves your ticks in the browser and ranks the unticked items by impact.

AI Free Shopify AI prompts

Operator-grade prompts: stock, ads, DPA OOS, retainers.

No formula. Six prompt templates that render your store name, hero SKU, days of cover, ad spend and restock ETA into the text before you copy.

Privacy. All tools run in your browser. Nothing is uploaded. Numbers stay on your device.

Related reading: stock-aware advertising · vs agency · guides.