European Site Search Software

#1 Doofinder

Madrid, Spain Basic EUR 49/month (EUR 44 billed annually), Pro EUR 149/month, Advanced EUR 349/month; Enterprise on request Demo on request

Best for: Small and mid-size online shops that want a plug-in and a fixed monthly price

• Operating company. Doofinder S.L.
• Jurisdiction. EU (Spain)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Klevu, Searchspring

Doofinder is the plug-in route into European shop search: a merchant connects a catalogue, the service indexes it, and a suggestion-led search box appears in front of shoppers with no engine to operate. Three plans are published in euros. Basic costs EUR 49 a month (EUR 44 on annual billing) for up to 10,000 requests per product, Pro costs EUR 149 for up to 150,000, and Advanced costs EUR 349 for up to 400,000.

The contracting party is Doofinder S.L., registered in the Madrid commercial register, and its privacy policy names a data protection officer and cites Spanish data protection law. The founding year and the index hosting location are not stated on the pages reviewed. The conversational AI assistant is reserved for Pro and above and priced on request, which is where the published numbers end.

Standout feature. Doofinder is the only tool in this category that prints a complete three-tier euro price list with request allowances beside it.

#2 Luigi's Box

Bratislava, Slovakia Quote-based, measured in usage units; no extra charge for additional domains or languages Demo on request

Best for: Retailers running several shops, domains or languages on one catalogue

• Operating company. Luigi's Box, s.r.o.
• Jurisdiction. EU (Slovakia)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Klevu, Searchspring

Luigi's Box bundles autocomplete, a recommender, product listing pages, a conversational agent and a shopping assistant into one subscription, and bills all of it from a single usage metric. That metric combines pageviews, category pageviews, catalogue items, searches, autocompletes and recommendations into units, and the pricing page states that the number of domains, languages or solutions does not change the price.

The company behind it is Luigi's Box, s.r.o., seated in Bratislava and entered in the commercial registry of the municipal court of Bratislava III. No price is printed, so a budget needs a quote, and the founding year and hosting location are not on the pages reviewed. The vendor says an account manager makes contact before a usage package is exceeded, which is a stated process and not a guarantee about the final invoice.

Standout feature. Luigi's Box is the only vendor here whose pricing page rules out an extra charge for each additional domain or language.

#3 Prefixbox

Budapest, Hungary AI Search EUR 1,250/month at the Grow+ volume (600,000 to 900,000 API requests/month); Navigation and Recommend add-ons EUR 550/month each; Shopify self-service priced separately Demo on request

Best for: Mid-size and large retailers with enough search traffic to justify managed AI search

• Operating company. Prefixbox Zrt.
• Jurisdiction. EU (Hungary)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Klevu, Constructor

Prefixbox sells managed AI search for retailers as a four-module suite: AI Search, AI Navigation, AI Recommend and a shopping assistant, all feeding an Insights layer with A/B tests and search specialists. Its pricing page puts AI Search at EUR 1,250 a month for the Grow+ volume of 600,000 to 900,000 API requests, with Navigation and Recommend as EUR 550 add-ons and an Enterprise tier above 900,000.

Prefixbox Zrt., a private limited company registered in Budapest, is named in the terms of service, and Rossmann Hungary and Bauhaus Czechia appear as case studies on the vendor's own site. The FAQ spells out what a request is: each autocomplete keystroke, filter and page change. The founding year and hosting location were not found, and a small shop will reach for a cheaper starting point.

Standout feature. Prefixbox is the one vendor here that explains, in its own FAQ, exactly how a shopper's keystrokes turn into billable requests.

#4 Tweakwise

Zwolle, Netherlands Modular; the pricing page lists starting figures per solution (Smart Search from 295, Commerce Pages from 495, Recommendations from 295) without naming a currency or period Demo on request

Best for: Web shops whose merchandisers tune search and category pages by hand

• Operating company. Tweakwise (private limited company, Netherlands)
• Jurisdiction. EU (Netherlands)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Klevu, Searchspring

Tweakwise is organised around the people who merchandise a web shop: Smart Search, Commerce Pages, Recommendations and Guided Selling are separate solutions, and a team decides how much manual control it wants over ranking. AI vector search handles intent, while redirects, AI synonyms, autocorrection and rule-based ordering keep the human in charge. Suggestions can include categories, blogs, FAQs and pages, not only products.

The privacy policy describes Tweakwise as a private limited liability company in the Netherlands, with an office at Punterweg 2 in Zwolle and a second address in Stockholm. The website states that it is part of Orisha Commerce. Starting figures of 295 for Smart Search, 495 for Commerce Pages and 295 for Recommendations are shown, but without a currency or billing period, so the real price comes from a quote.

Standout feature. Tweakwise treats category listing pages as a product of their own, a part of the shop that most search vendors leave to the platform.

#5 FactFinder

Pforzheim, Germany Pricing on request Demo on request

Best for: Retailers and manufacturers with technical or long-tail catalogues and a team to work with consultants

• Operating company. Omikron Data Quality GmbH
• Jurisdiction. EU (Germany)
• Where the data sits. EU hosting, stated on its FAQ
• Source code. Closed source
• Replaces. Algolia, Coveo, Constructor

FactFinder is built for catalogues where one wrong character in a part number sends the shopper to the wrong product. Its about page says B2B searches can hinge on a single character, so the platform pairs exact matching with an understanding of technical language, and combines exact results, AI ranking and rule-based control in one system. The site states 43 languages and catalogues of more than 16 million products in one channel.

The imprint names Omikron Data Quality GmbH, Habermehlstr. 17, 75172 Pforzheim, entered at AG Mannheim under HRB 502395. The FAQ says hosting is in the EU, that vector search and Atlas AI are its own technologies, and that a sub-processor list is available on request. There is no price list and no self-service sign-up: a Discovery Practice of consultants configures the platform, and a free search audit is the offered first step.

Standout feature. FactFinder is the only tool here that opens its pitch with exact matching of codes and part numbers before it mentions AI.

#6 Empathy.co

Gijon, Spain Founded 2012 Pricing on request Demo on request

Best for: Large retailers that want AI search with a say over where the models run

• Operating company. Empathy Systems Corporation S.L.U.
• Jurisdiction. EU (Spain)
• Where the data sits. Core AI services run on dedicated hardware at the company's own headquarters in Gijon, per its documentation
• Source code. Closed source
• Replaces. Algolia, Coveo, Klevu

Empathy.co sells commerce search to larger retailers and documents its product in public, down to dated release notes such as a VTEX integration announced in June 2026. The platform pairs keyword and AI search on a unified index and adds AI-generated related tags, next queries, related prompts and carousels, plus an AI Mode conversational layer, next to classic merchandising controls.

Empathy Systems Corporation S.L.U. is registered in Asturias with its office in the Gijon science park, and the about page says the company was founded in 2012 and positions itself against systems built on trading personal data. A documentation page describes in-house AI infrastructure on private clouds, deployable on premises or in commercial clouds, with core AI services running at its own headquarters. Prices are not published and onboarding starts with a demo.

Standout feature. Empathy.co is the only vendor here that describes running its core AI services on hardware in its own building.

#7 AddSearch

Helsinki, Finland Founded 2013 Keyword Search from USD 119/month billed annually; AI Answers from USD 700/month; AI Conversations custom; 14-day free trial Demo on request

Best for: Content sites, documentation and shops that want hosted search without running an engine

• Operating company. AddSearch Oy
• Jurisdiction. EU (Finland)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Google Programmable Search, Swiftype

AddSearch began in 2013 in Helsinki as a replacement for Google Site Search, and hosted website search is still the centre of the product. Keyword search with facets, scoped search, synonyms, ranking management and cookie-free analytics starts at USD 119 a month on annual billing, AI Answers with source citations from USD 700, and AI Conversations is priced on request. A 14-day free trial is offered.

The terms are with AddSearch Oy, a Finnish company, under Finnish law, and the about page says it joined the saas.group family in 2023. The vendor states it is SOC 2 certified and offers a 99.99 percent service level agreement. Two limits are worth noting: prices are in US dollars, and the vendor says its automatic synonyms are powered by OpenAI, a third-party AI provider. Index hosting is not stated.

Standout feature. AddSearch is the only tool here that sells AI answers with source citations as a separate, priced layer on top of plain keyword search.

#8 Nosto

Helsinki, Finland Founded 2013 On request; no public price list, quoted after a demo Demo on request

Best for: Retailers that want search, merchandising and personalization from one commerce platform

• Operating company. Nosto Solutions Oy
• Jurisdiction. EU (Finland)
• Where the data sits. Not EU-specific : the published sub-processor list names Amazon Web Services, Inc. (hosting and storage, United States) and Amazon Web Services Australia Pty Ltd (hosting and storage, Australia); no EU hosting location is named for primary data storage
• Source code. Closed source
• Replaces. Dynamic Yield, Certona, Monetate

Nosto is a Helsinki commerce experience platform in which search is one module among AI merchandising, product recommendations, personalization, category merchandising and post-purchase upsell. Findologic's website says it is now part of Nosto, which is why the personalized search module appears in this category. A retailer that already wants merchandising and testing to share data will find search in the same account.

The company is Nosto Solutions Oy at Bulevardi 21 in Helsinki, founded in 2013 by Jani Luostarinen, Antti Pöyhönen and Juha Valvanne, with affiliates in Germany, Sweden, France and the UK. Pricing is quoted after a demo. The published sub-processor list names Amazon Web Services, Inc. in the United States and Amazon Web Services Australia Pty Ltd for hosting, so the European contracting company does not translate into European hosting.

Standout feature. Nosto is the only tool here whose published sub-processor list shows primary hosting outside Europe.

#9 Site Search 360

Dresden, Germany Free plan; paid plans in USD from $9/month by indexed entries and monthly searches; custom plans Demo on request

Best for: Small websites and shops that want a hosted search box and a free starting plan

• Operating company. ZOOVU (Germany) GmbH (formerly Semknox GmbH)
• Jurisdiction. EU (Germany)
• Where the data sits. Not stated on the pages reviewed; ask the vendor
• Source code. Closed source
• Replaces. Algolia, Google Programmable Search

Site Search 360 is the low-friction entry point on this list: it has a free plan, paid tiers priced in US dollars from $9 a month, and two modes, content search for websites and e-commerce search that ingests a product feed. The site says setup takes about five minutes with a script, an API or a plug-in. Editors can boost and reorder results, define synonyms and shape the box in a search designer, with cross-domain search and 19 languages.

The service is a trademark of ZOOVU (Germany) GmbH, formerly Semknox GmbH, with its imprint at Webergasse 1 in Dresden and the entry HRB 44730 at Amtsgericht Dresden. Cost depends on two limits at once, indexed entries and monthly searches. The pages reviewed do not describe the wider ZOOVU group and do not state a hosting location, so both belong on the question list before signing.

Standout feature. Site Search 360 is the only tool here that lets a site start on a free plan and add a product feed later.

#10 Relewise

Aarhus, Denmark Usage-based licence by personalization requests with falling unit prices; amounts on request Demo on request

Best for: Danish and Nordic B2B and B2C shops that want search and personalization from one vendor

• Operating company. Relewise ApS
• Jurisdiction. EU (Denmark)
• Where the data sits. Microsoft Azure North Europe and West Europe, per its privacy notice
• Source code. Closed source
• Replaces. Algolia, Bloomreach, Klevu

Relewise is a personalization engine from Aarhus whose predictive semantic search combines query text with live shopper behaviour such as cart contents, filters and browsing history, so two shoppers can see different results for the same term. The vendor quotes responses under 100 ms for search and under 50 ms for predictive suggestions. There are no basic, pro or enterprise tiers: one licence unlocks every feature, and it can be ended at the end of any month.

Relewise ApS issues the privacy notice, with its head office at Trindsovej 8 in Aarhus and a Danish VAT number on the contact page. The notice names Microsoft Azure North Europe and West Europe as server locations and Twilio SendGrid in the United States for mail it sends. The company story starts in 2020, which makes it the youngest on the list. Unit prices fall as personalization requests grow, but amounts are given only after a demo.

Standout feature. Relewise is the only vendor here with a single licence that includes every feature and can be cancelled at month end.

#11 Grumeria

Augsburg, Germany Starter EUR 29 a month excl. VAT (EUR 290 a year): 1 language/currency catalog, 2,000 products per catalog, 50,000 searches a month, daily feed updates. Growth EUR 79 a month (EUR 790 a year): 3 catalogs, 5,000 products per catalog, 250,000 searches a month, feed updates every 6 hours. Pro EUR 199 a month (EUR 1,990 a year): 10 catalogs, 20,000 products per catalog, 2,000,000 searches a month, hourly feed updates. All plans include search, filters, merchandising, recommendations and analytics. Billed in EUR only. The 14-day trial needs no payment details, covers one catalog with up to 20,000 products and 50,000 searches, and does not turn into a paid subscription automatically. Enterprise on request. 14 days, no payment details required, does not convert to a paid plan automatically

Best for: Small and mid-size shops wanting cheap, plug-in search

• Operating company. webpowers UG (haftungsbeschränkt)
• Jurisdiction. EU (Germany)
• Where the data sits. Application, database and search index run on Fly.io in the Frankfurt region (Fly.io, Inc. is the named sub-processor); daily encrypted backups go to Tigris Data, Inc. object storage
• Source code. Closed source
• Replaces. Algolia, Doofinder

Grumeria is product search for online shops, run by webpowers UG (haftungsbeschränkt) in Augsburg. A shopper who mistypes a product name still gets results, and the shop owner can add synonyms, filters, price sorting, recommendations and curated category grids from a dashboard, without CSS or code. Plugins exist for JTL-Shop 5, WooCommerce and PrestaShop. Shopify and Magento 2 usually need only the store address, and Shopware or custom shops connect through a CSV, XML or Google Shopping feed.

Pricing is published in euros on the server-rendered pricing page: Starter EUR 29, Growth EUR 79 and Pro EUR 199 a month excluding VAT, with two months free on yearly billing. Every plan has all features and the limits are products, catalogs and monthly searches. When the quota runs out, the shop's own search takes over rather than extra charges appearing, and the 14-day trial needs no payment details and never converts by itself.

The privacy policy states that the application, database and search index run on Fly.io in Frankfurt, with sign-in through Firebase Authentication (Google Ireland Limited) and billing through Stripe Payments Europe. It also names Tigris Data, Inc. for encrypted daily backups, and Fly.io, Inc. is a US company. It is a young, small vendor: no founding year, customer list or certification is stated, and it is aimed at shops, not at content sites or large catalogues.

Standout feature. Grumeria is the only tool here that publishes three euro plans with every feature included and a fallback to the shop's own search at the limit.

#12 Yasan

Prague, Czech Republic Starter EUR 31.99/month (up to 700 orders/month, 20,000 products, 1 e-shop, 3,000 credits), Go EUR 82.99/month (up to 5,000 orders/month, 50,000 products, 2 e-shops, 10,000 credits), Pro EUR 206.90/month (up to 10,000 orders/month, 75,000 products, 5 e-shops, 25,000 credits); Individual plan on request. Prices exclude VAT, yearly billing is 15% cheaper, no contracts, 14-day free trial on every plan without a credit card. Starter, Go and Pro are only for Shoptet, Shopify and WooCommerce. 14-day free trial on every plan, no credit card required

Best for: Small Shoptet, Shopify or WooCommerce shops wanting AI search

• Operating company. Let's Whisper s.r.o. (brand Yasan)
• Jurisdiction. EU (Czech Republic)
• Where the data sits. Cloud hosting and data storage in the EU (DigitalOcean); some AI model providers process data in the United States under the EU-U.S. Data Privacy Framework or Standard Contractual Clauses
• Source code. Closed source
• Replaces. Algolia, Klevu, Searchspring

Yasan is an AI sales and customer-service assistant for online shops, run by Let's Whisper s.r.o. in Prague under the Yasan brand. Its search box understands natural-language queries such as light road running shoes under EUR 120 and turns them into filters and a matching selection, while a chat assistant recommends products using the shop's live catalog, prices and stock. It installs through Shoptet, Shopify or WooCommerce, with an API route on the individual plan.

Prices are published in euros on the home page: Starter EUR 31.99, Go EUR 82.99 and Pro EUR 206.90 a month excluding VAT, with 15% off on yearly billing and no contracts. Every plan has a 14-day free trial without a credit card. The plans are sized by orders per month, product count and credits, and the three standard plans are limited to the three named platforms, so shops on other systems need the individual plan.

The privacy documents say the cloud hosting and storage run in the EU, and the sub-processor list names DigitalOcean for hosting and Tinybird for analytics data. They also name AI model providers such as OpenAI, Anthropic, Google and TypeSafe AI, some of which process data in the United States under the Data Privacy Framework or Standard Contractual Clauses. The vendor states that its agreements prohibit training on customer data. No founding year or certification is stated.

Standout feature. Yasan is the only tool here that combines natural-language product search with a shopping chat assistant on published euro plans starting below EUR 32.