Free Shopify developer tools. Glad you stopped in: pick one, run your numbers, then tell us what we are building.

Free SEO tool

Domain Authority Checker: DA, PA, Spam Score, PageRank and traffic rank in bulk

Paste up to 25 domains and get Moz DA, PA and Spam Score, Open PageRank (a free link-graph score comparable to DR), Cloudflare Radar rank bucket, a Tranco-based authority score, traffic rank trend, domain age and HTTPS status in one table. No sign-up, nothing stored. We use it to vet backlink donors before paying for a placement.

Domains to check

Full URLs are fine — protocol, www and paths are stripped. Subdomains are checked at the registrable domain.

Results appear here in a few seconds.

Free tools

Shopify tools merchants ask us for

Each tool is a working app, not a landing page. No sign-up, no tracking, open source on GitHub.

Shopify Migration Checklist

9 phases, 74 tasks from pre-migration SEO audit to post-launch monitoring. Progress saves in your browser; export it as a plain-text plan for your team.

Shopify Liquid Snippets

Copy-paste Liquid for Online Store 2.0 themes: section schema, free-shipping bar, metafields with fallbacks, responsive images, sale and low-stock badges, breadcrumbs.

Mgroup Brand Kit

Logo downloads in any colour (wordmark, round and square mark, SVG or PNG), the “Design and development by Mgroup Shopify Agency” footer credit in Liquid, HTML, React and WordPress, and the story behind the monkey mark in nine languages.

Shopify Select Partner

Shopify Select Partner agency with 500+ stores supported and $100M+ in client store GMV since 2016

Mgroup is a verified Shopify development partner — a tier earned through proven revenue impact, certified team expertise, and quarterly evaluation by Shopify. Out of 700,000+ partners worldwide, approximately 500 hold Select status or higher. Our team of 20+ works exclusively on Shopify.

$100M+
Client store GMV supported
Up to 40%
Uplift in CRO & performance
12+ months
Avg. client relationship
500+
Shopify stores supported
Our Expertise

Custom Shopify Development Services

4 published apps on the Shopify App Store. 5.0 rating on the Shopify Partner Directory. Explore our full range of Shopify services and Shopify case studies.

Custom Shopify Theme Development

We build Shopify themes from scratch using clean, modular Liquid code and modern Shopify web development practices. No pre-built templates. Every theme targets 90+ Lighthouse scores and follows Online Store 2.0 architecture.

Shopify Store Migration Services

We migrate stores from WooCommerce, Magento, Salesforce Commerce Cloud, BigCommerce, and custom platforms. Our process preserves SEO equity — URLs, 301 redirects, metadata, canonical tags, and structured data are handled before launch.

Shopify App Development

As a Shopify app development agency, we build custom solutions when existing apps don't fit — private apps for individual stores and public apps for the Shopify App Store. Our published apps include Mgroup Image Zoom, Checkout UI Editor, and Dynamic Price.

Conversion Rate Optimization (CRO)

We analyze store data — heatmaps, session recordings, funnel analytics — and run structured tests to identify what increases revenue. Selected CRO and performance projects have delivered up to 40% uplift in key metrics.

B2B & Wholesale Shopify Solutions

We build B2B sales channels using native Shopify features and custom development. This includes tiered pricing, wholesale account portals, bulk ordering, net payment terms, and ERP integrations.

Ongoing Shopify Support & Maintenance

After launch, we stay. Our retainer clients get access to senior Shopify developers, designers, and strategists — bug fixes, feature requests, performance monitoring, and strategic consulting.

Why free tools

Why a Shopify development agency publishes free developer tools

Every tool on this site started as an internal spreadsheet, checklist or theme snippet that our team reused across client projects. The Shopify Plus pricing calculator is the model we walk merchants through before they sign a Plus contract. The Shopify migration checklist is the runbook behind our Shopify migration services. The Liquid snippets are patterns we ship inside custom Shopify themes and Online Store 2.0 sections.

Publishing them saves merchants a discovery call for questions that have a clear answer, and gives Shopify developers copy-paste code that follows current platform architecture. No sign-up, no tracking, no gated PDF — the source is on GitHub under the MIT license, and pull requests are welcome when Shopify changes its pricing, APIs or theme conventions.

Prefer to hand the work over? Mgroup builds, migrates, optimizes and supports Shopify and Shopify Plus stores for eCommerce brands in the US, UK, EU, Canada and Australia. Start with a free store audit or browse Shopify case studies with real results.

FAQ

Shopify developer tools FAQ

What do DA, PA, Spam Score and OPR mean?

DA (Domain Authority) and PA (Page Authority) are Moz's 1–100 predictions of how well a domain or page will rank, built from its link profile; Spam Score is Moz's 0–100% estimate of how similar a site is to sites Google has penalised. OPR is Open PageRank, a 0–10 PageRank calculated on the open Common Crawl link graph — a free, independent counterpart to Ahrefs DR. Different indexes, so the numbers rarely match — use them together, not in isolation.

How does the Domain Authority Checker calculate its own authority score?

The authority score is 100 minus 10 times the base-10 logarithm of the domain's position in the Tranco list, a research-grade ranking of the most visited domains built from several traffic sources. Rank 1 scores 100, rank 1,000 scores 70, rank 1,000,000 scores 40. It is a traffic-based proxy comparable in spirit to Moz DA or Ahrefs DR, but it is not those metrics and does not measure backlinks.

Is the domain authority check free and private?

Yes. Up to 25 domains per run, no sign-up and no API key. Traffic rank and domain age are fetched by your browser directly from the public Tranco API and registry RDAP; DA, PA, Spam and Radar rank pass through Mgroup's proxy, which caches results and does not log who checked what.

What happens when the Moz quota runs out?

The free Moz tier gives a small monthly allowance, so the checker shows how many rows are left, serves DA/PA/Spam from a 30-day cache for domains seen recently, and falls back to Cloudflare Radar's domain-ranking bucket plus the Tranco-based authority score for everything else. A banner tells you when that fallback is active.

What does the verdict column mean?

Strong means a well-ranked, established domain with no warning flags. Moderate and Low describe weaker traffic. Weak, Unranked and Avoid usually point to link farms, expired domains or brand-new sites — always confirm that a site links out with dofollow and has real editorial content before paying for a placement.

Are these Shopify developer tools really free?

Yes. Every tool on mgroupweb.github.io is free, needs no account and sets no tracking cookies. The code is open source under the MIT license on GitHub.

Who builds and maintains these tools?

Mgroup, a Shopify development agency and certified Shopify Select Partner since 2016 with a team of 20+ working exclusively on Shopify. The tools reflect the same figures, checklists and code patterns we use on client projects.

How accurate is the Shopify Plus pricing calculator?

It models the published structure of Shopify Plus pricing — a flat base fee of about $2,300–$2,500 per month, a 0.25% revenue-based fee above roughly $800k in monthly sales, a reported $40,000 monthly cap and the extra fee for third-party gateways. Shopify revises terms periodically, so confirm current numbers with Shopify before you sign.

Can I use the Liquid snippets in a client theme?

Yes. The snippets are MIT licensed and written for Online Store 2.0 themes. Test them in a duplicate theme first and adapt class names to your theme's CSS.

Does the migration checklist save my progress?

Progress is stored in your browser's localStorage only — nothing is sent to a server. Use "Copy as plan" to export the checklist as plain text for your team or project tracker.

Shopify Select Partner

Need this done on your Shopify store?

Custom themes, migrations, app development, CRO, and ongoing support for eCommerce brands. A senior Shopify developer replies within one business day.