Free Tools

eCommerce engineering tools, free to use

Calculators and decision aids built and maintained by senior engineers at No7 Software. Calibrated against the migrations, audits, and platform builds we've shipped — not vendor list prices.

Audit

AI Visibility Audit

Score how AI agents (ChatGPT, Perplexity, Claude Web, Google AI Overviews) see any domain — 8 weighted checks plus a free remediation plan.

Calculator

Shopify Plus Cost Estimator

Estimate UK 2026 platform fees, agency build, app stack, and engineering retainer for a Shopify Plus migration.

Detector

Shopify Theme Detector

Identify the eCommerce platform, the active theme, and the apps installed on any store URL. Detects Shopify, BigCommerce, Magento, WooCommerce, SFCC, Squarespace, Wix, and more.

Validator

Schema Markup Validator

Extract and validate every JSON-LD block on any page. See each schema.org type, catch parse errors, and find the high-value types (Organization, FAQ, Product, Breadcrumb) you're missing.