European Localization Software Tools

#1 Phrase

Hamburg, Germany and Prague, Czech Republic Founded 2010 Quote-based; no public price list Demo on request

Best for: Product companies with continuously changing text across many languages and a legal team that accepts AWS and Google Cloud hosting

• Operating company. Phrase GmbH / Phrase a.s.
• Jurisdiction. EU (Czech Republic)
• Where the data sits. AWS and Google Cloud; no EU-only region documented
• Source code. Closed source
• Replaces. Lokalise, Crowdin

Phrase is a translation management system rather than a translation engine, and that distinction decides whether it is the right purchase.

It manages the process around thousands of strings that keep changing: a translation memory so the same sentence is paid for once, glossaries that hold terminology from one release to the next, and connectors into GitHub, Figma and the CMS so new strings arrive without anyone exporting a spreadsheet. It works with DeepL and other engines instead of competing with them.

The company is European twice over, Phrase GmbH in Hamburg and Phrase a.s. in Prague, and it is the 2022 merger of Memsource (Prague, 2010) and PhraseApp (Hamburg).

The platform runs on AWS, with Phrase Studio on Google Cloud, and the published security documentation names no EU-only region, so the contract is European while the infrastructure belongs to two American hyperscalers. Phrase is ISO 27001 certified and SOC 2 Type I, with Type II expected in 2026, and it publishes no price.

Standout feature. A European TMS that sits on top of whichever machine translation engine you already use, rather than replacing it.

#2 Crowdin

Tallinn, Estonia Founded 2009 14-day Team trial and 30-day Enterprise trial; free licences for open source and academic projects; paid plans priced by hosted words and managers, see website Demo on request

Best for: Software, mobile and game teams that want continuous localization wired into Git

• Operating company. Crowdin OÜ
• Jurisdiction. EU (Estonia)
• Where the data sits. Processing in the EU, the United States and Ukraine, with transfer safeguards (per its terms)
• Source code. Closed source
• Replaces. Smartling, Lokalise, Transifex

Crowdin is built for teams whose text lives in code. Source files sync from GitHub, GitLab or Bitbucket, translators work in a browser editor with an in-context preview, and finished translations return to the repository. Branch-based management lets parallel releases be translated side by side, built-in QA checks cover length limits and placeholders, and the vendor lists 100+ file formats and 700+ apps and integrations.

The contracting entity is Crowdin OÜ in Tallinn, registered under code 14479905; the About page says Serhiy Dmytryshyn founded Crowdin in 2009 and is still its sole owner. Crowdin states that it is ISO/IEC 27001 certified, but its terms allow processing in the EU, the United States and Ukraine, and it has no self-hosting option. Pricing counts hosted words multiplied by target languages, so each added language raises the bill, and plan prices appear only through a calculator.

Standout feature. Over-the-air updates for mobile apps combined with a 700+ integration list and Managed Balance, which prepays machine and professional translation without separate vendor accounts.

#3 Weblate

Cvikov, Czech Republic Hosted Weblate from €47/month (10,000 hosted strings) up to €616/month (10,240,000); yearly €470 to €6,160; 14-day free trial; self-hosting free; Libre plan free for public libre projects Demo on request

Best for: Open source projects and companies that want control over where localization runs

• Operating company. Weblate s.r.o.
• Jurisdiction. EU (Czech Republic)
• Where the data sits. Hosted Weblate stores and processes customer data and backups in the EU
• Source code. Closed source
• Replaces. Smartling, Lokalise, Transifex

Weblate bills itself as the privacy-respecting, open source localization platform. It connects to your repository, brings new strings to translators and commits translations back with attribution, and teams can translate by hand, add machine translation or LLM suggestions, or require reviewer approval before anything is committed. The home page lists KiCad EDA and Flathub among its users.

The provider is Weblate s.r.o. in Cvikov, Czech Republic, registered in Ústí nad Labem.

Hosted plans count source strings times target languages plus the source language, from €47 a month for 10,000 up to €616 for 10 million, with 20 percent off for annual billing and a 14-day trial. Hosted data and backups stay in the EU according to the hosting page, the same software is GPL-3.0 and free to self-host, and the vendor notes that integrations you configure can send data elsewhere.

Standout feature. The only platform here that is GPL-3.0, free to self-host and sold as an EU-hosted service from the same codebase, with a free Libre plan for public libre projects.

#4 Tolgee

Brno, Czech Republic Free plan €0 (30,000 words, 3 seats); Optimise €133/month billed annually (unlimited seats, 400,000 MT credits); Manage and Enterprise on request; on-premises licence on request Demo on request

Best for: Developers who want to translate directly inside the running app and keep the option to self-host

• Operating company. Tolgee s.r.o.
• Jurisdiction. EU (Czech Republic)
• Where the data sits. Cloud, or your own infrastructure when self-hosted
• Source code. Closed source
• Replaces. Lokalise, Crowdin, Phrase, Smartling

Tolgee describes itself as an open source alternative to Crowdin, Phrase or Lokalise, and its distinguishing feature is in-context translation: with the JavaScript SDK, translators and developers edit text directly in the running application, and the keys, screenshots and translations are saved into the project. A CLI, REST API, Figma plugin and content delivery to cloud storage let fixes reach the app without a new release.

The contracting entity is Tolgee s.r.o. in Brno (ID 09968326), and its terms are governed by Czech law. Everything outside the ee/ directories is Apache 2.0, with the enterprise directories under a separate licence. The cloud counts hosted words with unlimited keys: the free plan holds 30,000 words and 3 seats, and Optimise costs €133 a month billed annually with unlimited seats. The pages checked do not state the cloud hosting region, which is why self-hosting matters here.

Standout feature. Translators edit the live interface of the running app through the SDK, so keys and screenshots are captured as a side effect of translating.

#5 LingoHub

Linz, Austria Founded 2012 Starter €45/month; Team €115/month; Pro €345/month; Enterprise on request; all with unlimited seats Demo on request

Best for: Product and marketing teams that want AI translation anchored in their own terminology

• Operating company. lingohub GmbH
• Jurisdiction. EU (Austria)
• Where the data sits. AWS data centres, Ireland region
• Source code. Closed source
• Replaces. Smartling, Lokalise, Phrase

LingoHub has been built in Linz since 2012, and its AI assistant LINA drafts and reviews translations using the glossary terms, translation memory and style guide your team maintains, so output follows existing product language. Integrations include GitHub, GitLab, Bitbucket, Figma, Azure DevOps and Zendesk, plus a REST API and a mobile SDK, although Bitbucket and Azure DevOps start at Team and all integrations at Pro.

The contracting entity is lingohub GmbH at Hauptplatz 23 in Linz (FN 384721t), acting as a processor under Article 28 GDPR.

The security page states that all data sits in AWS data centres in the Ireland region and lists ISO 27001, SOC 2 Type II and EU-US Data Privacy Framework participation. Starter is €45 a month, Team €115 and Pro €345, all with unlimited seats but capped linguistic credits of 100k, 500k and 1 million a month; on-premises deployment is Enterprise only.

Standout feature. AI translation that is grounded in the customer's own glossary, translation memory and style guide, sold at published euro prices with unlimited seats.

#6 Localazy

Brno, Czech Republic Founded 2018 Free 14-day trial; plans scale with managed source keys, see website; Localazy AI averages $0.005 per word Demo on request

Best for: Product teams with many contributors who are tired of per-seat pricing

• Operating company. Localazy s.r.o.
• Jurisdiction. EU (Czech Republic)
• Where the data sits. Not stated on the pages checked; see its privacy policy and DPA
• Source code. Closed source
• Replaces. Smartling, Lokalise, Phrase

Localazy was started by Václav Hodek after he translated his own Android app into 30+ languages and ran into contributor seat limits in other tools. The model that came out of it gives every plan unlimited seats, projects, words and languages, and sets the plan size by the number of managed source keys. Automations translate new strings as they arrive, webhooks fire on project events, and branching keeps parallel releases apart.

The operator is Localazy s.r.o. at Mlynska 326/13 in Brno (company ID 09050451), under Czech law and Czech courts. A CLI, REST API, mobile SDKs and a language CDN handle delivery. There is no self-hosted edition, plan prices appear only in the calculator, SSO is limited to Enterprise, and Localazy AI credits are priced at $1 each, around $0.005 per word, which sits awkwardly in a euro budget. The pages checked do not state a hosting region.

Standout feature. Seat-free pricing: unlimited contributors, projects, words and languages on every plan, with only managed source keys setting the size.

#7 XTM International

Beaconsfield, United Kingdom Founded 2001 Quote-based across every product (XTM Platform, XTM TMS, XTM XTRF, XTM Rigi, XTM Transifex); no published tiers Demo on request

Best for: Enterprises coordinating localisation across many product teams and languages

• Operating company. XTM International Limited
• Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
• Source code. Closed source
• Replaces. Phrase, Smartling, Lokalise

XTM International runs a translation management system for companies coordinating localisation across many product teams and languages at once, not for a single translator working alone. Content connects in through 80-plus integrations, translation memory and terminology carry across projects, and machine translation from several providers can pre-fill segments for human review.

XTM International Limited has been incorporated in England and Wales since 16 May 2001 and operates from Beaconsfield, so it sits under a UK adequacy decision rather than EU establishment, the same position as Trados. The company has grown by acquisition and now also owns XTRF, a business-management system for language service providers, and Transifex, a continuous-localisation platform. Every product is priced by quote with no published tiers and no self-service trial, only a demo booking.

Standout feature. One vendor now spans enterprise TMS, LSP business management (XTRF) and continuous localisation (Transifex) under the same ownership.

#8 memoQ

Budapest, Hungary Starter from €2,750/year (1 PM licence + 5 linguist subscriptions); Essential, Professional and Enterprise tiers by quote Demo on request

Best for: Translators and small agencies that want to own a CAT licence at a published price

• Operating company. memoQ Translation Technologies Ltd.
• Jurisdiction. EU (Hungary)
• Source code. Closed source
• Replaces. Trados, Wordfast

memoQ is the CAT tool for translators who would rather own a licence than rent a platform. Every translated segment is stored in a translation memory that proposes matches for the next similar sentence, term bases enforce agreed vocabulary, and LiveDocs aligns existing bilingual documents into reusable reference material. A desktop client and a browser-based online editor are both available.

memoQ Translation Technologies Ltd. operates from Budapest under Hungarian and EU jurisdiction. The Starter licence is published at about €2,750 a year for one project manager plus five linguist subscriptions, and a free trial is available; Essential, Professional and Enterprise step up to quote-only pricing. The pages checked state no hosting region for the online editor, and the vendor positions memoQ as a European alternative to Trados rather than an agency business-management suite.

Standout feature. A published entry price for a professional CAT tool, which most competitors here only give after a sales call.

#9 Wordbee

Belvaux, Luxembourg Essential, Smart and Enterprise from about €150/power user/month billed annually (Enterprise tier published; Essential and Smart not priced on the page); Infinity by quote; Agentic AI add-on from €450/month Demo on request

Best for: Language service providers that want a CAT editor and project management in one login

• Operating company. Wordbee S.A.R.L
• Jurisdiction. EU (Luxembourg)
• Source code. Closed source
• Replaces. Phrase, XTM International, Plunet

Wordbee combines a CAT editor with the business side of running translation projects, the territory of Plunet and XTRF, delivered as one login. Power users manage workflows and vendors, linguists translate in the built-in editor, and an agentic AI add-on lets a team plug in its own OpenAI, Claude, Mistral or Gemini key for QA and routing rather than being locked to one model provider.

Wordbee S.A.R.L is registered in Belvaux, Luxembourg, under Luxembourg law. The Enterprise tier is published at €150 per power user per month billed annually, covering 20 power users, 500 linguists and 5 TB of storage, while Essential, Smart and Infinity are not priced on the page. The agentic AI add-on is a separate subscription from €450 a month, 15+ integrations include GitHub, Sitecore and WordPress, and the ecosystem is smaller than that of Phrase or XTM International.

Standout feature. The translator's editor and the project manager's vendor tools share one login, with an AI add-on that accepts the customer's own LLM key.

#10 translate5

Mössingen, Germany User-based €2,400 or €4,440 per year (1 main user plus 10 linguists, unlimited volume); volume-based €10,900 per year including 2,000,000 words; flat rate on request; 30-day cloud trial Demo on request

Best for: Language service providers and companies with data sovereignty needs

• Operating company. MittagQI - Quality Informatics (Marc Mittag)
• Jurisdiction. EU (Germany)
• Where the data sits. OVH data centre in Limburg, Germany (translate5 Cloud), or your own servers
• Source code. Closed source
• Replaces. Smartling, Trados, memoQ, XTM

translate5 is a translation management system developed and supported by MittagQI. It offers a browser workflow with live preview of translated files, an InstantTranslate customer portal, a TermPortal for glossaries, a REST API for all interface functions, and translate5 AI for pre-translation, post-editing and quality estimation with LLMs you can train. The in-country review module gives reviewers inline editing with a real layout preview.

The imprint names MittagQI - Quality Informatics, Marc Mittag, in Mössingen, and the team page calls him CEO and owner, so the contracting party is an individual-led business, not a corporate group.

The vendor states that translate5 Cloud runs in an OVH data centre in Limburg and that all data stays in Germany; on-premises and hybrid setups are possible. User-based plans are €2,400 or €4,440 a year, the volume plan is €10,900 a year with 2,000,000 words, and the cheapest option leaves out AI, TermPortal and the customer portal. The website is mostly in German.

Standout feature. An open source TMS that can run in a German cloud or on your own servers with LLMs on your own infrastructure.

#11 Gridly

Sweden (city not stated on pages checked), Sweden Basic: CMS from €99/month, TMS from €50/month, CAT from €140/month; Team: €249, €125 and €280/month; Enterprise on request; 14-day trial Demo on request

Best for: Teams that manage structured multilingual content such as game or app text in a grid

• Operating company. Gridly AB
• Jurisdiction. EU (Sweden)
• Where the data sits. Not stated on the pages checked
• Source code. Closed source
• Replaces. Smartling, Lokalise, Phrase

Gridly manages multilingual content in a spreadsheet-like grid and then layers translation management and a CAT editor on top. Its founders describe themselves as former game developers. Grids hold content in rows and columns with views, dependencies, automations and branches, so development, testing and localization can run as parallel versions, and connectors sync with Google Sheets, MySQL and PostgreSQL.

The product is owned by Gridly AB and its terms follow Swedish law with Swedish courts.

The pricing page splits the product into a CMS, a TMS and a CAT module: on Basic they start at €99, €50 and €140 a month, extra seats cost €29 a month (€14 for CAT), and a 14-day trial gives the full Team tier. Basic is capped at 3,000 API requests and 2,500 automated updates a month, the pages checked state no hosting region, and the grid suits structured text better than long documents.

Standout feature. Localization attached to a database-like grid of structured content, with branches and dependencies for parallel versions of the same text.

#12 Weglot

Paris, France Founded 2016 Free tier / paid plans by translated word count Demo on request

Best for: Businesses that need a whole website in several languages quickly

• Operating company. Weglot SAS
• Jurisdiction. EU (France)
• Where the data sits. EU (France)
• Source code. Closed source
• Replaces. WPML, manual multilingual site builds

Weglot translates an entire website without touching the code, which is a different job from the engines elsewhere in this category. It detects everything on the site, translates it, serves it at language-specific URLs and keeps it in sync as the site changes. Hreflang tags and indexable language URLs are handled automatically, which is where do-it-yourself multilingual builds usually fail on search.

Weglot SAS operates from Paris and was founded in 2016, with EU processing under GDPR. It works with any CMS or framework, combines machine translation with editing or ordered professional translation, and reports more than 110,000 users according to the vendor, from small Shopify shops to enterprise sites. Pricing is by translated word count with a free tier, so a large catalogue can cost far more than the entry plan suggests.

Standout feature. Language URLs and hreflang generated automatically on any CMS, so translated pages are indexable without code changes.

#13 Trados

Maidenhead, United Kingdom Founded 1984 From €155/year Demo on request

Best for: Professional translators and agencies

• Operating company. Trados
• Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
• Source code. Closed source
• Replaces. MemoQ, Wordfast

Trados is described on its tool page as the world's most widely used CAT tool, developed by RWS in Maidenhead. Studio is the desktop flagship in Freelance, Starter and Professional editions, with translation memory, terminology management, QA checks and support for over 70 file formats, and Trados Go, launched in 2024, is the browser-based version. Machine translation engines including DeepL can pre-fill segments.

The company dates to 1984 as Trados GmbH in Stuttgart, founded by Jochen Hummel and Iko Knyphausen; SDL bought it in 2005 and RWS Holdings acquired SDL in 2020. It now sits under the UK Data Protection Act 2018 and an adequacy decision rather than EU establishment, though RWS offers European data centre hosting for cloud services. Pricing in this directory starts from €155 a year, and freelancers often need it simply because agency clients send Trados packages.

Standout feature. The format and compatibility standard that agencies expect, with a desktop Studio and a browser-based Trados Go on the same memory.