Best SEO Tools for Ecommerce (2026): 5 Picks Compared

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Most ecommerce stores need two kinds of SEO tool: one that fixes problems on the store itself (meta tags, alt text, structured data, speed) and one that tells you what people search for. For a Shopify store, start with Avada SEO for on-store fixes, and add Semrush once you are ready to pay around $140 a month for keyword and competitor research.

Quick comparison

	Semrush	Surfer	Avada SEO	TinySEO	Plug in SEO
What it does	Keyword, backlink and competitor research, site audits	Content writing and optimization	On-store SEO fixes and image optimization	Image compression, speed and SEO basics	Audits and bulk fixes
Free plan	Yes (1 demo project, 10 reports/day)	Not mentioned (7-day trial of Pro)	Yes	Yes (50 image optimizations/mo)	No (7-day trial)
Paid from	$139/mo for the SEO plan*	Not published in sources we could read	$34.95/mo	$14/mo	$4.99/mo
What scales the price	Websites, tracked keywords, users, toolkits	Monthly usage pool per plan	Plan tier, AI credits	Image optimizations per month	Pages scanned, audits per month
Runs inside Shopify	No	No	Yes	Yes	Yes
Shopify App Store rating**	Not a Shopify app	Not a Shopify app	4.9 (4,687 reviews)	5.0 (2,574 reviews)	4.6 (677 reviews)

*Semrush's help center shows $139/month, or $117.33/month billed annually. A second Semrush help article lists different plan names and prices; see the Semrush section. **As listed on the Shopify App Store in November 2026.

Our pick by store type

New Shopify store with a small catalog: Install Avada SEO on its free plan. It covers alt text, meta tags, an HTML sitemap and basic structured data, with 100 image optimizations and 20 on-page audits. Move to Pro at $34.95/month when you hit the image or audit cap. You do not need a research suite yet.

Store with a large image catalog or slow pages: TinySEO is the better fit. Its plans are built around monthly image optimizations, from 1,500 on the $14 Beginner plan to 15,000 on the $49 Expert plan, and it adds lazy loading, asset preloading and CSS/JS minification.

Store that wants to grow organic traffic with content and category pages: Add Semrush. It is the only tool here that shows you what competitors rank for, which keywords have volume, and who links to them. If your plan is to publish blog posts regularly, Surfer helps you write each article to rank, but we could not confirm its prices (more below).

Hands-on owner who wants to audit and fix things in bulk: Plug in SEO. It starts at $4.99/month, though the bulk AI editing of alt text, file names and URLs starts on the $29.99 Lite plan.

We cover the three Shopify apps in more depth in our Shopify SEO app comparison.

Semrush: best for keyword and competitor research

Semrush is a marketing suite built around SEO research: keyword research, backlink analysis, rank tracking and technical site audits. Newer plans also track how your brand appears in AI answers across Google, ChatGPT, Perplexity and Gemini.

Pricing. Semrush's help center article comparing its plans lists:

Free: 1 demo project, 10 reports per day
SEO: $139/month, or $117.33/month billed annually. 5 websites, 500 keywords tracked daily
Starter (SEO + AI Search): $199/month, or $165.17/month billed annually. Adds 50 AI prompts tracked daily
Pro+: $299/month, or $248.17/month billed annually. 15 websites, 1,500 keywords tracked daily
Advanced and Enterprise: custom pricing

A separate Semrush help article on the SEO Toolkit lists Pro at $139.95, Guru at $249.95 and Business at $499.95 per month. The entry price is about the same either way, but confirm the current plan layout at checkout.

Watch out: extra users start at $45/month each, and other toolkits (content, local, social, ads) are billed separately. The 7-day trial disables exports. For a small store that just needs its product pages fixed, Semrush is more than you need.

Read our full Semrush review for ecommerce for costs at two store sizes.

Surfer: best for writing content that ranks

Surfer is a content tool. Its editor scores an article against what ranks for your target keyword, and it adds an AI writer, keyword research, content audits of existing pages and AI visibility tracking.

Pricing. Surfer's help center lists five plans: Discovery (solo creators), Standard (one-person businesses and small teams), Pro (multiple brands), Peace of Mind (high usage, API access) and Enterprise (custom). It does not show prices, and we could not read Surfer's pricing page, so we are not quoting a price. Annual billing saves up to 17%, and new accounts get a 7-day trial of Pro. No free plan is mentioned.

Watch out: each plan has a usage pool that resets monthly, and unused limits do not roll over. Upgrades are prorated and reset your billing date.

Who it fits: stores that publish blog content and want guidance on what to cover. If you do not publish content, skip it.

Avada SEO: best place for Shopify stores to start

Avada SEO (listed on the Shopify App Store as Avada AI SEO Image Optimizer) is the broadest on-store SEO app here.

Pricing.

Free: 100 image optimizations, 20 on-page audits, 100 AI credits, basic structured data, HTML sitemap, alt text optimization
Pro: $34.95/month or $348/year. Unlimited image optimizations and on-page audits, 1,000 AI credits, broken link manager, URL optimization, XML sitemap generator, robots.txt editor
Enterprise: $99/month or $990/year. AI on-page audit agent, 10,000 AI credits, advanced structured data, one-on-one consulting, 24/7 expert support

Pro and Enterprise have a 7-day free trial.

Watch out: the AI on-page audit agent is only on Enterprise. Avada does not do keyword or competitor research the way Semrush does.

TinySEO: best for image-heavy catalogs

TinySEO (formerly TinyIMG) compresses and resizes images, writes alt text and SEO-friendly file names, and adds speed fixes.

Pricing.

Free: 50 image optimizations/month
Beginner: $14/month ($140/year). 1,500 optimizations, extra at 2¢ each, site audit, lazy loading, structured data for return policy and shipping
Advanced: $23/month ($230/year). 5,000 optimizations, extra at 1¢ each, IndexNow, 404 detection and redirects, CSS/JS minification
Expert: $49/month ($490/year). 15,000 optimizations, extra at 0.8¢ each, Search Console insights, extended structured data

Paid plans have a 7-day trial.

Watch out: every plan caps monthly image optimizations, so price depends on how many images you add each month.

Plug in SEO: best for DIY audits

Plug in SEO audits your store and gives you tools to fix what it finds.

Pricing (all plans have a 7-day trial, no free plan):

Starter: $4.99/month. 30 pages scanned, 1 audit/month
Lite: $29.99/month. 200 pages, 2 audits, bulk AI editing of alt text, file names and URLs
Standard: $49.99/month. 2,000 pages, 5 audits, 5 speed reports, a free 30-minute call with an SEO expert
Premium: $79.99/month. Unlimited pages, 10 audits, unlimited speed reports, priority support

Watch out: Starter only scans 30 pages, which most real catalogs pass quickly.

What it costs at two store sizes

Only published prices are used here.

Small store (under 100 products, owner does SEO):

Avada SEO Free: $0, or Pro at $34.95/month once you outgrow the free caps
Add TinySEO Beginner ($14/month) only if image weight is your main speed problem
Total: $0 to about $49/month. Semrush's free plan (10 reports a day) is enough for occasional keyword checks.

Growing store investing in content (a few hundred products, regular blog posts):

Avada SEO Pro: $34.95/month
Semrush SEO plan: $139/month, or $117.33/month billed annually
Total: about $152 to $174/month before any extra Semrush users ($45/month each). Add Surfer if you want writing guidance, but check its pricing page for the current cost.

Which one should you choose?

Choose Avada SEO if you run a Shopify store and want the on-store basics covered for free or $34.95/month.
Choose TinySEO if your catalog is image-heavy and page speed is the priority.
Choose Plug in SEO if you want audits and keyword data to work through yourself.
Choose Semrush if you are ready to plan content and category pages around real search data and competitors.
Choose Surfer if you publish articles regularly and want each one scored before it goes live.

Common questions

Do I need Semrush if I already have a Shopify SEO app? Not at first. Shopify SEO apps fix problems on your own pages; Semrush shows what to target and what competitors rank for. Add it when you are ready to plan content around keyword data.

Is there a free SEO tool for ecommerce stores? Yes. Avada SEO and TinySEO have free plans on the Shopify App Store, and Semrush has a free plan with 1 demo project and 10 reports a day. Plug in SEO has no free plan, only a 7-day trial.

How much does Surfer cost? We could not confirm Surfer's prices from its official pages. Its help center lists the plans and says annual billing saves up to 17%, so check the pricing page before you sign up.

Can I run two Shopify SEO apps at once? You can, but Avada, TinySEO and Plug in SEO overlap on alt text, structured data and redirects. Pick one as your main SEO app and make sure two apps are not both editing the same fields.

How we put this together

We did not test these tools hands-on. Facts and prices come from each company's own pages, read in November 2026: Semrush's help center articles on plans and pricing; Surfer's help center pricing FAQ; and the Shopify App Store listings for Avada SEO, TinySEO and Plug in SEO, along with our tracked fact sheets for each tool. Surfer's prices were not visible in the official sources we could read, so we did not quote them. Prices change, so confirm them on each pricing page before you buy.

Best SEO Tools for Ecommerce Stores in 2026