STM Smart Checkout for WooCommerce
Distraction-free WooCommerce checkout with the German and EU legal essentials built in. Works with your gateways, theme and Germanized.
Solid choice
STM Smart Checkout for WooComme… is a solid plugin choice in 2026, with a few things worth checking first. Was last updated 4 weeks ago, and scores 64/100 on our health check.
- Actively developed — last update 4 weeks ago
- Tested with the latest WordPress (7.1)
- Small user base (<10 active installs)
- Very few reviews so far
How does it stack up?
Side-by-side on installs, updates, ratings & supportDaily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where STM Smart Checkout for WooC… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| checkout | >100 |
| checkout fields | >100 |
| conversion | >100 |
| germanized | #23 |
| WooCommerce checkout | >100 |
About STM Smart Checkout for WooCommerce
From the official readme · v0.1.50Description
Your checkout is the most expensive page in your shop. This plugin makes it earn its keep — without replacing your gateways, your legal plugin or WooCommerce itself.
Install it, switch on preview mode, and look at your own checkout the way a customer does. Your customers keep seeing the standard checkout while you do. If you do not like it, deactivate the plugin and everything is exactly as it was — no pages changed, no data locked in.
Four things that set it apart
- It stands down instead of fighting. Before it prints a consent box, a button label or a VAT line, it asks the rendered checkout whether another plugin is already printing one — not whether one happens to be installed. That is why it can run alongside WooCommerce Germanized and German Market without the duplicate texts shops usually get.
- The German and EU legal essentials are built in. Run it with no legal plugin at all and the checkout is still complete: § 312j BGB button wording, consent with the exact text stored on the order, VAT statement, delivery time per item, the mandatory notice above the buy button.
- Postcode autofill for Germany, Austria and Switzerland — with the databases inside the plugin. Type the postcode, the city fills itself. No external service, no API key, no customer address ever leaves your server.
- Nothing phones home. No external fonts, no tracking, no remote requests. HPOS compatible.
Turn a form into a buying experience
- Distraction-free layouts — three columns, two or one, with a progress indicator across cart, checkout and confirmation. Theme header, menu, breadcrumbs and seals disappear where they only cost you orders.
- A trust header band with your logo, three short trust claims with icons, and an “Already a customer?” login pill that opens the login form WooCommerce prints anyway.
- Design tokens, not
!important— accent colour, heading colour, font size, corner radius, all from the settings screen. It adapts to your theme instead of overruling it. - Trust badges and a reassurance note exactly where the hesitation happens: between the consent boxes and the buy button.
- Switch off the two classic leak points — the coupon prompt that sends customers hunting for a code, and the “Additional information” notes field nobody reads.
Fewer mistakes, fewer abandoned carts
- Field manager with instant validation, tidied field pairs (first and last name, postcode and city), state corrections, and the right touch keyboard on every mobile field.
- Legal texts open in an overlay — customers read your terms without leaving the checkout.
- A server-side safety net re-checks every required consent box after submit. A request without the tick is refused, not merely hidden.
- Delivery time under every product, in cart and checkout, taken from the most specific source that knows one.
Works with your stack, not around it
Your gateways keep rendering their own express buttons. Your legal plugin keeps owning its legal texts. Your theme keeps its typography. This plugin arranges what is already there into a checkout that converts.
Classic cart and checkout are styled in full; the Cart and Checkout blocks get everything except the column layouts and the field manager. The settings screen says exactly which is which — no surprises — and a reversible one-click switch to the classic pages is built in. The plugin never changes your pages on its own.
STM Smart Checkout Pro
The free plugin is complete in itself and stays that way. The paid add-on is for shops that want the checkout to sell more and cost less work:
- Online withdrawal form — the withdrawal function required EU-wide since 19 June 2026 (directive 2023/2673): a public page reachable for guests, pre-filled for logged-in customers, with merchant notification, customer receipt and a full management screen under WooCommerce.
- Bundle discounts — a percentage off the cart once it holds enough different products, needs no coupon form and reaches PayPal as a real discount instead of an unexplained total, with a progress hint that tells customers how close they are.
- Checkout offers — a card above the buy button that adds one more product to the order in a single click, with its own tax class, stock and delivery time.
- VAT ID field with live VIES check and reverse charge — a confirmed EU VAT ID takes the tax off the order. An unreachable EU service never grants an exemption; the order goes through with VAT and says why.
- Express zone — one defined band above the form for PayPal, Apple Pay and Google Pay, steered there through the providers’ own filters, never rebuilt and never moved in the DOM.
- Payment-dependent required fields — invoice purchase may ask for a phone number, prepayment need not. Re-checked on the server.
- Method customizer — your own name, note, symbol and sort order per payment method, through documented WooCommerce filters, with 33 bundled symbols.
- Safe mode — a fatal error while the checkout renders no longer costs you orders: the Smart Checkout steps aside and WooCommerce’s standard checkout takes over, visibly and reversibly.
- Mobile sticky order bar and an ultra-compact layout for dense checkouts on small screens.
Pro requires this free plugin: STM Smart Checkout Pro for WooCommerce. This plugin has a page of its own as well: STM Smart Checkout for WooCommerce
Auf Deutsch: die rechtssichere WooCommerce-Kasse für Shops in Deutschland, Österreich und der Schweiz
Ihre Kasse ist die teuerste Seite im Shop. Dieses Plugin sorgt dafür, dass sie sich lohnt — ohne Ihre Zahlungsarten, Ihr Rechts-Plugin oder WooCommerce zu ersetzen.
Installieren, Vorschau-Modus einschalten und die eigene Kasse einmal mit Kundenaugen ansehen. Ihre Kundschaft sieht währenddessen weiter die Standard-Kasse. Gefällt es nicht, deaktivieren Sie das Plugin und alles ist wie zuvor — keine Seite verändert, nichts eingesperrt.
Vier Dinge, die es auszeichnen
- Es tritt zurück, statt zu streiten. Bevor es ein Pflichthäkchen, eine Button-Beschriftung oder eine MwSt.-Zeile ausgibt, fragt es die gerenderte Kasse, ob ein anderes Plugin das bereits tut — nicht, ob eines installiert ist. Deshalb läuft es neben WooCommerce Germanized und German Market, ohne die doppelten Texte, die Shops sonst bekommen.
- Die deutschen und EU-Pflichtangaben sind eingebaut. Auch ganz ohne Rechts-Plugin ist die Kasse vollständig: Button-Lösung nach § 312j BGB, Einwilligung mit dem exakten Wortlaut auf der Bestellung, MwSt.-Ausweisung, Lieferzeit je Artikel, Pflichthinweis über dem Kaufknopf.
- PLZ-Autovervollständigung für D, A und CH — mit den Datenbanken im Plugin. Postleitzahl eintippen, der Ort füllt sich selbst. Kein externer Dienst, kein API-Schlüssel, keine Kundenadresse verlässt Ihren Server. DSGVO-konform, ohne Nachfrage beim Datenschutzbeauftragten.
- Nichts funkt nach Hause. Keine externen Schriften, kein Tracking, keine entfernten Anfragen. HPOS-kompatibel.
Aus einem Formular eine Kaufstrecke machen
- Ablenkungsfreie Layouts — Drei-, Zwei- oder Einspalter mit Fortschrittsanzeige über Warenkorb, Kasse und Bestätigung. Theme-Kopf, Menü, Brotkrumen und Siegel verschwinden dort, wo sie nur Bestellungen kosten.
- Trust-Kopfband mit Ihrem Logo, drei kurzen Vertrauens-Aussagen mit Symbolen und einer „Bereits Kunde?”-Anmelde-Pille, die das Anmeldeformular öffnet, das WooCommerce ohnehin ausgibt.
- Design-Tokens statt
!important— Akzentfarbe, Überschriftenfarbe, Schriftgröße, Eckenradius, alles aus dem Backend. Es fügt sich in Ihr Theme, statt es zu überstimmen. - Trust-Badges und ein Beruhigungshinweis genau dort, wo gezögert wird: zwischen den Pflichthäkchen und dem Kaufknopf.
- Die zwei klassischen Leckstellen abschaltbar — der Gutschein-Hinweis, der Kunden auf Code-Jagd schickt, und das Bemerkungsfeld, das niemand liest.
Weniger Fehler, weniger Abbrüche
- Feldverwaltung mit Sofortprüfung, aufgeräumten Feldpaaren (Vor-/Nachname, PLZ/Ort), Bundesland-Korrekturen und der richtigen Handy-Tastatur in jedem Feld.
- Rechtstexte im Overlay — Kundschaft liest Ihre AGB, ohne die Kasse zu verlassen.
- Serverseitige Absicherung: Jedes Pflichthäkchen wird nach dem Absenden erneut geprüft. Eine Anfrage ohne Haken wird abgewiesen, nicht bloß ausgeblendet.
- Lieferzeit unter jedem Produkt, in Warenkorb und Kasse, aus der jeweils genauesten Quelle.
Arbeitet mit Ihrem Bestand, nicht daran vorbei
Ihre Zahlungsarten rendern weiter ihre eigenen Express-Knöpfe. Ihr Rechts-Plugin behält seine Rechtstexte. Ihr Theme behält seine Typografie. Dieses Plugin ordnet, was schon da ist, zu einer Kasse, die verkauft.
Die klassische Kasse gestaltet es vollständig; die Cart- und Checkout-Blöcke bekommen alles außer Spaltenlayouts und Feldverwaltung. Der Einstellungsbildschirm sagt genau, was wo gilt — keine Überraschungen — und ein umkehrbarer Ein-Klick-Wechsel auf die klassischen Seiten ist eingebaut. Das Plugin ändert Ihre Seiten nie von selbst.
STM Smart Checkout Pro
Das kostenlose Plugin ist in sich vollständig und bleibt es. Das kostenpflichtige Zusatzmodul ist für Shops, deren Kasse mehr verkaufen und weniger Arbeit machen soll:
- Online-Widerrufsformular — die seit dem 19. Juni 2026 EU-weit vorgeschriebene Widerrufsfunktion (Richtlinie 2023/2673): öffentliche Seite, auch für Gäste erreichbar, für angemeldete Kundschaft vorbefüllt, mit Händler-Benachrichtigung, Kundenbeleg und vollständiger Verwaltung unter WooCommerce.
- Bundle-Rabatte — ein Prozentsatz auf den Warenkorb, sobald genug verschiedene Produkte darin liegen, braucht kein Gutscheinformular und erreicht PayPal als echten Rabatt statt als unerklärte Differenz, mit Fortschritts-Hinweis, wie nah die Kundschaft dran ist.
- Angebote an der Kasse — eine Karte über dem Kaufknopf, die mit einem Klick ein weiteres Produkt in die Bestellung legt, mit eigener Steuerklasse, eigenem Bestand und eigener Lieferzeit.
- USt-IdNr.-Feld mit VIES-Live-Prüfung und Reverse Charge — eine bestätigte EU-USt-IdNr. nimmt die Umsatzsteuer aus der Bestellung. Eine nicht erreichbare EU-Schnittstelle gewährt niemals eine Befreiung; die Bestellung geht mit Steuer durch und sagt warum.
- Express-Zone — ein definiertes Band über dem Formular für PayPal, Apple Pay und Google Pay, über die Filter der Anbieter dorthin gesteuert, nie nachgebaut und nie im DOM verschoben.
- Zahlartabhängige Pflichtfelder — Kauf auf Rechnung darf nach der Telefonnummer fragen, Vorkasse nicht. Serverseitig nachgeprüft.
- Methoden-Customizer — eigener Name, Zusatztext, Symbol und Reihenfolge je Zahlart, über dokumentierte WooCommerce-Filter, mit 33 mitgelieferten Symbolen.
- Safe-Mode — ein Fatal Error beim Rendern der Kasse kostet Sie keine Bestellungen mehr: der Smart Checkout tritt zurück, die Standard-Kasse übernimmt, sichtbar und umkehrbar.
- Mobile Sticky-Bestellleiste und ein ultra-kompaktes Layout für dichte Kassen auf kleinen Bildschirmen.
Pro setzt dieses kostenlose Plugin voraus: STM Smart Checkout Pro für WooCommerce. Auch das kostenlose Plugin hat eine eigene Seite: STM Smart Checkout für WooCommerce
Credits
The bundled postcode databases for Germany, Austria and Switzerland are derived from the free geographical database GeoNames, used under the Creative Commons Attribution 4.0 licence.
They ship as plain JSON inside the plugin and are read locally. Nothing is fetched at runtime, and no address a customer types is sent anywhere.
Frequently asked questions
Does this work with the block-based checkout?
In part, and the plugin says exactly which part. Everything around the form works on the Cart and Checkout blocks: the full-page template, the trust header band, the step indicator, the legal footer line and the design tokens on the button, the fields and the order summary. Inside the form, the pieces that matter under German law are there as well: a required consent box for terms and cancellation policy that WooCommerce validates on the server — a request without the tick is refused — and writes onto the order together with the exact wording; the mandatory notice from your settings and the…
Does it work with WooCommerce Germanized / German Market?
Yes — coexistence with both is a core design goal. The plugin respects their legal checkboxes, button texts and tax displays.
Is there a paid version, and what does it add?
Yes. STM Smart Checkout Pro is a separate add-on that requires this free plugin. It adds the online withdrawal form and its management screen, the express zone for wallet buttons, payment-dependent required fields, the payment method customizer, safe mode, a mobile sticky order bar and an ultra-compact layout. Everything described in the description above is part of this free plugin and stays that way — Pro adds, it does not unlock. Details and pricing: STM Smart Checkout Pro for WooCommerce
Does the free plugin include the online withdrawal form required since June 2026?
No — that one is in Pro. EU directive 2023/2673 requires an online withdrawal function for distance contracts from 19 June 2026, and it is more than a form: a public page reachable for guests, pre-filling for logged-in customers, order matching that never turns a consumer away, notification and receipt mails, and a management screen with a status workflow. What the free plugin does cover is the checkout side of German and EU law — consent, the § 312j BGB button label, VAT statement, delivery time and the mandatory notice above the buy button.
Do I need a legal plugin for a German shop?
No. If none is present, the checkout supplies the mandatory pieces itself: the consent box for terms and cancellation policy, the § 312j BGB button label, the VAT statement in the order summary, and the delivery time under each product. Each of these is decided by asking whether another plugin is actually rendering it — not by asking whether one is installed — so nothing ever appears twice.
What does it deliberately not cover?
Unit prices (PAngV) and sending the cancellation policy with the order confirmation mail stay with a dedicated legal plugin. The settings screen states this in plain language rather than leaving you to find out later, and it shows what the automatic detection last found on your checkout.
Can I try it without switching my live checkout over?
Yes. Leave the plugin switched off and open the checkout with ?stmc_preview=1 as a shop manager — you see the Smart Checkout, customers keep seeing the standard one. ?stmc_preview=off ends the preview again, and the settings screen tells you while it is running, with the link that ends it.
What happens to my checkout if I deactivate the plugin?
You get the standard WooCommerce checkout back, unchanged. The plugin arranges and supplements the existing checkout; it does not replace the template, the gateways or the order process, and it stores nothing your shop would miss.
Does it work with my theme?
It is built to. Themes with a server-side adapter (The7, Storefront) use their native distraction-free path; every other theme gets the plugin’s own minimal full-page template, so the theme’s header, menus and footer are never built while styles, analytics, consent tools and chat widgets keep working. Layout rules place the checkout anchors themselves, whatever markup a theme template wraps them in.
Is it compatible with HPOS?
Yes, HPOS (High-Performance Order Storage) is fully supported. Compatibility with the cart/checkout blocks is declared in the sense that this plugin does not interfere with them — it does not style them either; see the block-checkout question above.
Does it load external fonts or call external services?
No. No remote fonts, no tracking, no external requests. The postcode databases for DE/AT/CH ship with the plugin.
Changelog
Older entries (0.1.0 to 0.1.28) are kept in CHANGELOG-ARCHIVE.txt in the plugin’s
repository: https://github.com/storetown-media/stm-smart-checkout
They are left out here because WordPress.org truncates this section at 5,000 words,
which would drop them silently instead of on purpose.
0.1.50
- No code changes. This release exists so the plugin directory serves a rewritten description — WordPress.org reads it from the stable tag, so a new text needs a new version.
- The description now leads with what actually sets this plugin apart instead of listing twelve features: that it asks the rendered checkout whether another plugin already prints a consent box, a button label or a VAT line before printing its own; that the German and EU legal essentials work with no legal plugin at all; that the postcode databases for Germany, Austria and Switzerland sit inside the plugin so no customer address leaves your server; and that nothing phones home.
- Preview mode moved from the eleventh bullet to the second sentence. Trying the plugin on your own live site while customers keep seeing the standard checkout is the most useful thing a shop can do with it, and it was buried.
- The Pro section was incomplete and is now correct: bundle discounts and checkout offers had been shipping since 0.6.0 and 0.7.0 without ever being described, and the VAT ID field with its live VIES check and reverse charge has been added.
- The tag “one page checkout” has been replaced with “checkout fields” — this plugin is not a one page checkout, and the field manager it does have is free.
0.1.49
- On the block checkout the own consent box now stands down for a legal plugin that renders its own — until now a shop running Germanized read two consent texts on one page, ours as a required checkbox and Germanized’s below it, with the setting on “automatic”.
- Why it took a different answer than the classic checkout: the block field has to be registered at woocommerce_init, because the Store API needs it registered to validate and store it, and at that moment no legal plugin has hooked the checkout yet. Measured in a real request — the detection answers “nobody” there and “Germanized” a few hooks later, too late to matter.
- So on the blocks, and only there, the question is answered by presence rather than by hook, and as narrowly as possible: not “is Germanized installed” but “is its block integration loaded”. Registering the field and declining to render it later would have been better, but WooCommerce offers no filter for that.
- The settings screen says what was found, because a decision made on presence can be wrong and must not be wrong silently. A shop whose legal plugin is installed but not showing a consent box switches the setting to “on”.
0.1.48
- The coupon prompt and the order-notes field can now be switched off on the block checkout too — the same two settings that already governed them on the classic pages, so a shop configures once and both surfaces agree.
- Measured before it was promised, and the measurement moved the answer: WooCommerce hands the block app a couponsEnabled flag and offers a filter behind it, but that flag is global for the request — the Store API checks the same function, so using it would not hide a prompt, it would refuse coupons the shop still issues by link. The narrow lever is the block wrapper itself.
- The order-notes filter the classic checkout uses does not exist in the block path at all; the block that draws the field carries no logic to hook into. What works is that the Checkout block renders server-side as a tree of empty wrappers and the app mounts into them — no wrapper, nothing to mount. Verified through first paint, through a re-render, and on the way back.
- Said plainly rather than sold: the block checkout already folds the notes and the coupon behind a single line by itself, so the separate “expandable line” setting for the notes changes nothing there. The settings screen says so.
0.1.47
- The trust row and the reassurance note reach the block checkout. The row of small trust items sits under the buy button, where the last doubt happens, and the reassurance note under the consent box it comments on — the same markup, the same settings and the same stylesheet the classic checkout uses, read from one place so the two can never drift apart.
- Measured first, because the reasonable guess was wrong: the block checkout offers no hook under its button and no slot either — the four Slot/Fill points WooCommerce exposes all sit in the order summary. What does work is appending markup after a block, and the checkout’s React tree leaves it alone: through the first paint, and through re-renders while a customer types.
- The block stylesheet no longer depends on the legal module. A shop that lets a legal plugin handle consent kept its buy button, fields and cards unstyled on the blocks, because the whole layer hung on one switch. The design travels with the plugin now; the button label, the consent box and the legal line still stand down with the module they belong to.
0.1.46
- The block checkout wears the plugin’s design. Every step of the Checkout block is a card now — the same background, border, radius and shadow as the classic sections — with the classic numbered title: a disc in the title blue counting contact, address, shipping and payment, and the accent rule beneath. The additional-information block and the order notes keep the card and skip the number; they are addenda, not steps. The order summary heading speaks in the same voice. All of it is stylesheet only, hung on the block’s own class names as measured on WooCommerce 11, and switched off with the plugin.
- Not attempted, and said so: the three-column choreography of the classic checkout. The block offers no wrapper for two independent columns of steps, and a grid would couple the address and payment columns row by row — a tall payment step forcing an equally tall blank beside it. The layout setting keeps applying to the classic checkout only, as the settings screen states.
0.1.45
- The legal core works on the Cart and Checkout blocks. A required consent box for terms and cancellation policy is registered through WooCommerce’s additional checkout fields, so the Store API validates it on the server — a checkout request without the tick, or with it set to false, is refused before an order exists — and the order carries the moment of consent and the exact sentence agreed to, as it does on the classic checkout. The links to both texts stand one line above the buy button, in the place WooCommerce reserved for legal text, and open in the plugin’s overlay. The buy button carries the label from your settings; the blocks never read the classic filter, and what looked compliant on German shops so far was WooCommerce’s translation of “Place order” and nothing more.
- The design tokens reach into the block form: the buy button, the fields, the section titles and the order summary wear the same accent, radius and type scale as the shell around them. The shell itself — full-page template, trust band, step indicator, legal footer — has worked on the blocks all along; it hangs on page hooks, not on the classic checkout’s rendering hooks, which is more than the previous FAQ answer allowed for.
- The mandatory notice and the delivery time follow. The notice from your settings — the essential order details the courts want readable right before the decision — shares the line above the buy button with the legal links, in body size where the links stay quiet. The delivery time under each item rides on WooCommerce’s own item data, the mechanism the Store API and both blocks already render under a product name: it appears in the cart block and in the checkout’s order summary, resolved from the same sources as on the classic checkout (the product’s own value, a legal plugin’s delivery term, the shop-wide default), stands down for virtual items and where a legal plugin labels the item, and is printed once even on a shop whose cart is classic while its checkout is a block.
- Not on the blocks yet, and said so on the settings screen: the column layouts, the field manager and postcode autofill, the trust row, the reassurance note, the coupon and order-note controls. Every piece above stays out on WooCommerce older than the additional-fields API; the classic checkout is unaffected there.
Screenshots
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Best STM Smart Checkout for WooCom… alternatives
All checkout plugins →FAQ
STM Smart Checkout for WooCommerce: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Is STM Smart Checkout for WooComme… free?
Yes. STM Smart Checkout for WooComme… is free to download and use from the official WordPress.org plugin directory.
Is STM Smart Checkout for WooComme… safe to use in 2026?
STM Smart Checkout for WooComme… is a solid plugin choice in 2026, with a few things worth checking first. Was last updated 4 weeks ago, and scores 64/100 on our health check.
How many websites use STM Smart Checkout for WooComme…?
STM Smart Checkout for WooComme… is active on <10 WordPress websites and has been downloaded 290 times since it launched in September 2026. It was downloaded 294 times in the last 30 days.
Does STM Smart Checkout for WooComme… work with WordPress 7.1?
Yes. The developer has tested STM Smart Checkout for WooComme… up to WordPress 7.1.2, the latest release. It requires WordPress 6.5 or newer.
What PHP version does STM Smart Checkout for WooComme… need?
STM Smart Checkout for WooComme… requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was STM Smart Checkout for WooComme… last updated?
The latest version, 0.1.50, was released on September 5, 2026 (4 weeks ago).
Who makes STM Smart Checkout for WooComme…?
STM Smart Checkout for WooComme… is developed and maintained by Tatjana von Storetown-Media.
What are the best alternatives to STM Smart Checkout for WooComme…?
The most popular alternatives to STM Smart Checkout for WooComme… are Brazilian Market on WooComm… (60K+ installs), reCAPTCHA for WooCommerce (40K+ installs) and Fluid Checkout for WooComme… (20K+ installs).
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