Best Ecommerce Website Builders 2026: Ranked by What You Pay

The best ecommerce website builder, by our books, is the one that takes the least from each sale — after you add up the three numbers most roundups skip: the plan fee, the processing rate, and any platform surcharge. CartCraft ranks store builders the way a bookkeeper would: every claim priced, every rate verified, every total shown with its workings.

Below: seven builders audited against the same benchmark store, a ranked ledger, the worked math, and a verdict. Shopify takes the top line at 9.3/10, but it does not win every column — the same $2,000-a-month store pays anywhere from $78 to $129 a month depending on which name is on the invoice.

How we audit: unit economics, not feature tours

Every audit runs one formula: monthly cost = plan fee + (revenue × processing %) + (orders × fixed fee per order) + (revenue × platform %). That is the complete amount a builder and its default gateway take before apps, themes, shipping, or email enter the picture — costs we price separately, because vendors prefer you didn't.

Our benchmark store does $2,000 a month across 40 orders — a $50 average order, small enough to be a first store, large enough for percentages to bite. The same rate table powers the ecommerce fees calculator, so every figure on this page can be rerun at your own volume; the calculator and the copy are updated together, from one table. Rates below are US standard-card rates at annual billing, verified August 2026.

Scores weight cost first but not cost alone: checkout quality, included features per dollar, and fine print that rewrites your bill later — auto-upgrades, gateway surcharges, fee cliffs — all post to the balance. For rates in isolation, the transaction fees comparison itemizes every builder, one row each.

Shopify — the most selling machine per dollar (9.3/10)

Shopify Basic runs $39 a month billed monthly, $29 a month on an annual term — a 25% saving for signing the year. Grow is $105/$79, Advanced $399/$299, and the $5 Starter plan sells through links and social only, with no full storefront. Shopify Payments takes online cards at 2.9% + $0.30 on Basic, 2.7% + $0.30 on Grow, and 2.5% + $0.30 on Advanced (premium and AmEx cards run higher — 3.5% on Basic). Decline Shopify Payments and a surcharge posts on top of your gateway's own rate: 2% on Basic, 1% on Grow, 0.6% on Advanced. Use Shopify Payments and the platform fee is $0.

Shopify's own pricing page was displaying promo-state figures when we checked ($27 and $19 for Basic, and so on). The rack rates above are the standard, multi-source-confirmed prices. Book the rate, not the banner.

The credits are real: a checkout that a large consultancy study found converts up to 36% better than competing platforms and roughly 15% better on average — Shopify commissioned that study, so apply a discount, though no competitor has published better — plus an app store of around 13,000 apps at the time of checking, an order of magnitude beyond anyone else. The standing debit is app creep: typical stores run 5–15 paid apps, which prices out at $50–$150 a month for a basic stack (reviews, email, upsells, SEO) and $300 or more at scale. Book apps as rent, not extras, before you sign.

Who should not buy Shopify:

• Hobby sellers under about $300 a month in revenue — the fixed cost plus app creep consumes the margin whole.
• Content-first sites that sell occasionally; you would be paying for a checkout you rarely open.

The itemized workings — app budgets, theme prices ($100–$400 one-time, commonly $180–$350), the gateway-surcharge math — are in our full Shopify review. Current plans and the 3-day trial (then $1 a month for three months) are posted at Shopify.

Wix eCommerce — the easiest real store at $29 (8.4/10)

The Wix eCommerce entry price hides one line up: the $17-a-month Light plan cannot take payments, so the working floor is Core — $29 a month annual, $36 month-to-month, the cheapest Wix plan that accepts payments. Business is $39/$46; Business Elite $159/$172. Wix Payments processes US cards at 2.9% + $0.30, AmEx at 3.7% + $0.30, PayPal at 3.49% + $0.49, and buy-now-pay-later (Affirm, Klarna, Afterpay) at 6% + $0.30 — read that last line twice, because 6% is more than double the card rate before the fixed fee.

Platform commission is 0% on every paid plan — you pay the gateway and nothing else. (A few 2026 roundups claim a 4% Core / 2% Business commission; Wix's own fee schedule says otherwise, and we book to source documents.) Capacity is tiered: dropshipping caps at 25 products on Core, 250 on Business, and 50,000 on Elite; Business adds automated sales tax and shipping labels, Elite adds loyalty and multi-currency.

Who should not buy Wix eCommerce:

• High-SKU catalogs and stores heading past $250K a year — the stack thins out at scale.
• Anyone who might re-platform later: there is no export of your site design, so leaving means rebuilding from zero.

The plan-by-plan audit is in our Wix eCommerce review; current terms are at Wix directly.

Squarespace Core — content and commerce, honestly priced (8.1/10)

Squarespace repriced in early July 2026 — quietly, upward, by as much as 26% — so the current schedule reads: Basic $19 a month annual ($25 monthly), Core $29 ($39), Plus $49 ($65), Advanced $99 ($139), and every paid plan can sell products. The line that decides everything is the platform fee: Basic adds 2% on physical sales and 7% on digital; Core takes physical to 0% (digital 5%); Plus cuts digital to 1%; Advanced is 0% across the board. Squarespace Payments runs standard cards at 2.9% + $0.30 on Basic and Core, 2.7% + $0.30 on Plus, and 2.5% + $0.30 on Advanced.

This is why the ledger ranks Core, not Basic. Past roughly $500 a month in physical sales, Basic's 2% platform fee costs more than the $10 upgrade to Core — at our $2,000 benchmark, Basic bills $129 a month against Core's $99. Selling on Basic past that line is a bookkeeping error with a monthly subscription.

Who should not buy Squarespace for commerce:

• Large catalogs and stores with complex shipping matrices — the tooling runs out before the ambition does.
• Heavy digital sellers on the lower tiers, where 5–7% platform fees on digital goods can outbill the processing itself.

When the content tools justify the fee schedule — and when they don't — is the subject of our Squarespace Commerce review; plans are at Squarespace.

WooCommerce — lowest structural cost, paid in hours (7.9/10)

The WooCommerce line opens at $0 — free, open-source WordPress software with no license fee — and then the real entries post: hosting at a typical $4–$30 a month for small stores, a domain at $12–$20 a year, an optional premium theme at $49–$149 a year, and premium extensions commonly $100–$500+ a year. WooPayments processes US cards at 2.9% + $0.30 (add 1% for international cards) with no monthly or setup fee, and the platform fee is 0% — nobody takes a revenue share of a store you host yourself.

Our benchmark store pays about $85 a month all-in on an assumed $15 hosting plan — the second-cheapest total in the ledger, and the gap widens as revenue grows because no plan tier ever forces an upgrade. The unpriced column is labor: updates, security patches, backups, PCI posture, and plugin-conflict debugging are yours — hours a month that no SaaS builder asks of you. WooCommerce is cheap the way a fixer-upper is cheap.

Who should not buy WooCommerce:

• Non-technical owners without budget for a maintainer — the fees you save reappear as invoices from whoever debugs the plugins.

The software and WooPayments cost nothing to install — start with WooCommerce here and budget the hours honestly.

BigCommerce — most built in, new fine print (7.6/10)

BigCommerce rewrote its books on June 1, 2026: Standard became Core ($39 monthly / $29 annual), Plus became Growth ($105 / $79), Pro became Scale ($399 / $299), and Enterprise became Performance (custom, from around $1,499). Two new lines matter. First, sales thresholds: trailing-twelve-month GMV now auto-upgrades your plan — Core forces an upgrade at $30K, Growth at $100K, and Scale pays a 0.9% overage on GMV above $33,333 a month. Your plan fee is a function of your revenue whether you asked or not.

Second, the platform fee: 0% applies only when you process through one of roughly 21 approved embedded providers (BigCommerce Payments, Stripe, PayPal Braintree, Adyen, Klarna, and others). Any other gateway triggers the new Open Payment Provider Fee — 2% on Core, 1% on Growth, 0.6% on Scale. The old blanket claim of 0% transaction fees died in June 2026; it is conditional now. Default processing via BigCommerce Payments / PayPal Braintree promo rates: 2.59% + $0.49 on Core, 2.29% + $0.49 on Growth, 1.99% + $0.49 on Scale, with eligibility varying by account. Benchmark total: $100.40 a month — at a $50 average order, the $0.49 fixed fee outbills the lower percentage.

Who should not buy BigCommerce:

• Small stores anywhere near the $30K GMV trip-wire — the forced jump from $29 to $79 rewrites your unit economics mid-year.
• Stores wedded to a niche gateway; a 2% open-provider fee on Core is a platform fee by another name.

The feature depth per dollar is genuinely strong — big-store tooling with no app-store toll. Current plans are at BigCommerce.

Square Online — the last true $0 store (7.4/10)

Square collapsed eighteen separate subscriptions into three plans in October 2025: Square Free at $0 a month per location, Plus at $49, Premium at $149. Free is a functioning business, not a teaser — POS, website, online ordering, invoicing, banking — published to a square.site subdomain with a small Square branding footer; at the time of checking, a custom domain appears to require a paid plan.

The tax on free arrived January 13, 2026: online processing on the Free plan rose to 3.3% + $0.30 (from 2.9%), while Plus and Premium pay 2.9% + $0.30 (from 2.6%). Platform commission remains 0% everywhere — Square earns on processing, which is exactly why the free plan's rate went up and not its price. Even so, the benchmark store totals $78 a month, the cheapest line in the whole ledger: a $0 plan fee forgives 0.4 extra points of processing at $2,000 in volume. We treat Square Online strictly as a fees case for stores; the arithmetic is the appeal, not the design tools.

Who should not use Square Online:

• Online-only brands that want design control — the storefront tooling is the thinnest of the seven.
• Anyone chasing the lowest online rate: 3.3% + $0.30 on Free is the worst processing line in the table.

Starting at $0 means the trial is the product: open the Free plan at Square and let the processing line tell you when to upgrade.

Ecwid — the bolt-on store (7.0/10)

Ecwid, by Lightspeed, is the odd entry: not a site builder but a store you bolt onto a site you already own — WordPress, a static site, even a social profile. Its free plan was discontinued on March 2, 2026; the ledger now opens at Starter, $5 a month for up to 10 products, then Venture at $35 monthly / $29 annual (100 products plus digital goods), Business at $65 / $49 (2,500 products), and Unlimited at $149 / $119 (unlimited products, POS, unlimited staff). Transaction fees are 0% on every plan; processing is whatever your connected gateway charges — Stripe or PayPal at around 2.9% + $0.30 in the US.

Who should not buy Ecwid:

• Anyone without an existing site who wants one platform for site and store — bolt-on is the whole design.

At $5 a month with clean rates, Starter is the cheapest paid line we track. If you have a site and ten products, the audit is short — Ecwid's plans are here.

The fee math that decides it

Same store, seven invoices. $2,000 a month in sales, 40 orders, $50 average order; cheapest real-store plan, annual billing, default gateway — the formula from the top of the page, fully posted:

• Square Online Free — $0 plan + $66.00 processing (3.3%) + $12.00 fixed fees (40 × $0.30) = $78.00/mo
• WooCommerce — $15.00 hosting (assumed) + $58.00 (2.9%) + $12.00 = $85.00/mo
• Shopify Basic, Wix Core, Squarespace Core — $29 plan + $58.00 (2.9%) + $12.00 = $99.00/mo each
• BigCommerce Core — $29 plan + $51.80 (2.59%) + $19.60 (40 × $0.49) = $100.40/mo
• Squarespace Basic — $19 plan + $58.00 + $12.00 + $40.00 platform fee (2%) = $129.00/mo

Read the spread before the ranking: $51 a month separates the cheapest line from the dearest — $612 a year — and the cheapest plan on paper (Squarespace Basic at $19) produces the most expensive bill in the set. Fee structure beats sticker price whenever the volume is real. The ranking above does not simply follow this column, because $2,000 a month is one point on the curve: Square's advantage shrinks as revenue grows, WooCommerce's grows, and Shopify's $99 buys measurably more checkout than anyone else's $99. Run your own volume through the calculator — thirty seconds, same rate table.

And if the store does not exist yet, speed to first sale is its own unit economic. Which builders get you checkout-ready in two days — and which ask for a week of plugins first — is covered in our guide to launching a store in a weekend.

The balance

Every audit ends with a balance, and this one is unambiguous: Shopify holds the top line because it converts the same fees into more selling than anyone else — but only for owners who police the app column like the line item it is.