Free Shopify Tools
A free toolkit of 8 audits, calculators, and generators for Shopify merchants. Audit your store in 30 seconds, calculate profit margins and ROAS, detect any store's theme, and generate SEO files — all without sign-up, email, or installing an app.
Last updated · 8 tools
Free Shopify Store Audit
Most PopularGet a score out of 100 across SEO, speed, trust signals, mobile readiness, and conversion optimization. 31 checks, instant results.
Profit Margin Calculator
NewEnter cost and selling price to instantly calculate profit margin %, markup %, profit per unit, and projected monthly/annual earnings.
Discount Calculator
NewCalculate sale prices, stacked discounts, and total savings. See exactly what you pay after single or double percentage discounts.
ROAS Calculator
NewCalculate Return on Ad Spend, net profit after ads, and break-even ROAS. Color-coded results show if your ad campaigns are profitable.
Cashback Calculator
Enter purchase amount, cashback percentage, and optional cap to see exactly how much cash back you earn. Supports 10 currencies.
Shopify Theme Detector
Detect any Shopify store's theme name, currency, country, and installed apps instantly — without installing anything.
Robots.txt Generator
Generate an optimized robots.txt file for your Shopify store with best-practice defaults that protect admin, cart, and checkout paths.
LLMs.txt Generator
Create an llms.txt file so AI models like ChatGPT, Claude, and Perplexity understand your Shopify store and surface it correctly.
Which Shopify Tool Should You Use?
Pick the tool that matches your job. Each one is built around a single decision a Shopify merchant actually has to make — pricing a product, evaluating an ad campaign, diagnosing a slow store, or sizing up a competitor.
| Tool | Type | Best For | What You Enter |
|---|---|---|---|
| Store Audit | Audit | Diagnosing why your store underperforms | Any Shopify store URL |
| Profit Margin | Calculator | Pricing products and forecasting profit | Cost price, selling price, units/month |
| Discount Calc | Calculator | Planning sales and stacked promotions | Original price, discount % |
| ROAS Calc | Calculator | Evaluating Meta, Google, TikTok ad performance | Ad spend, revenue, margin |
| Cashback Calc | Calculator | Comparing credit card and rebate offers | Amount, rate %, cap |
| Theme Detector | Research | Researching competitors and theme inspiration | Any Shopify store URL |
| Robots.txt | Generator | Fixing crawl issues and indexation | Store domain |
| LLMs.txt | Generator | Getting cited by AI search engines | Store URL, brand info |
Common Jobs These Tools Help With
Most Shopify questions fall into one of four buckets. Here's the fastest way to answer each one with the free tools on this page.
1. "Why isn't my Shopify store converting?"
Run the free Store Audit first. It scores 31 on-page signals across SEO, speed, trust, mobile, and conversion. The output is a ranked punch list — fix the high-impact red items before anything else. If your audit score is below 70, you have lost-revenue issues that compound with every visitor.
2. "What price should I sell this product at?"
Use the Profit Margin Calculator to test different selling prices against your cost, then validate the discount structure with the Discount Calculator if you plan to run sales. For ad-driven products, also pass the price through the ROAS Calculator to see your break-even ROAS — anything below that loses money on paid traffic.
3. "What apps and theme is this competitor using?"
Drop the competitor's URL into the Shopify Theme Detector. You'll see their theme, currency, country, and the apps they have installed. Cross-reference the apps you spot against our directory of Shopify apps to read independent reviews before installing them yourself.
4. "How do I get crawled by Google and AI search engines?"
Generate a Shopify-tuned robots.txt to stop Google from wasting crawl budget on /cart, /checkout, and faceted URLs. Then create an llms.txt so models like ChatGPT, Claude, and Perplexity surface your store correctly when buyers ask them for product recommendations.
Why These Tools Are Free
Running a Shopify store is hard enough without paying for every utility. Every tool here is designed to be instantly useful — no accounts, no trials, no upsells. Open the tool, use it, get back to your store.
Ecomguide makes money from our independent Shopify app directory. The tools exist because we use them ourselves to evaluate apps, audit storefronts, and research the ecosystem. Releasing them publicly costs us nothing extra and helps merchants who land here trust the rest of our reviews.
Every tool runs in your browser or on a stateless server function. We do not store the URLs you audit, the prices you enter, or any output. There is nothing to leak because we keep nothing.