Best Software Localization Services

Alconost

Alconost handles every aspect of localization—from translation and cultural adaptation to continuous multilingual content updates and localization engineering—allowing you to focus on your top priority: growing your business in international markets. Since 2004, we help companies of all sizes—from indie app and game developers to industry leaders like JetBrains, Airalo, and Vizor—connect with audiences in 120+ languages worldwide. Our integrated approach combines linguistic expertise, cultural intelligence, and advanced technology to handle every aspect of your global expansion: ✔ Translation, adaptation, and editing (including AI translation where viable) ✔ Linguistic quality assurance and functional testing ✔ Continuous multilingual content delivery ✔ Localization engineering, technical infrastructure setup and maintenance ✔ Translation performance tracking and optimization Our translators bring native language skills and industry expertise. Whether you're localizing software, games, or marketing materials, you'll work with specialists who understand the nuances of your field. ℹ How We Work We offer purpose-fit service levels to suit any budget and needs, from must-have translation services to comprehensive localization solutions with full technical integration. Alconost localization teams are flexible and can expand or contract based on your current business needs. We adjust both team size and the type of resources to deliver at any volume and speed. Every project we work on includes: ✔ Project Manager ✔ Native-speaking linguists with domain expertise What other professionals can you add? ✔ More Project Managers ✔ Language leads or senior linguists ✔ Proofreaders ✔ AI translation engineer ✔ Localization engineer ✔ Resource manager Our full-stack approach allows us to localize every piece of your content, including UI, technical documentation, marketing and DTP materials, knowledge base, learning, and media content. Alconost | Enable languages ▶︎ alconost.com Check your translation quality 100% free ▶︎ alconost.mt

Average Rating: 4.8/5.0

Total Reviews: 154

Andovar

Andovar is your gateway to global success, offering a comprehensive suite of international data and localization services. With a strong foundation in language and cultural expertise gained from 20 years of delivering eLearning, gaming, multimedia and corporate localization solutions in over 200 languages, we transcend geographical boundaries to ensure your language models are optimized for global audiences. Our proprietary tools empower us to deliver high-quality, multilingual, culturally optimized solutions that break down language barriers, drive automation and unlock your true global potential. We specialize in delivering: Data Services for AI training: Multilingual Voice Data Speech Data Image Data Video Data Text Data Miscellaneous/custom Data Data Annotation Data Labeling AI-assisted Translation & Localization: eLearning Localization Games Localization Multilingual Studio Services Enterprise Localization Solutions Contact us for a non-binding quote! Our Story: When we first started Andovar, we were just a small group of passionate linguists and tech enthusiasts in the heart of Bangkok. It was the early 2000s, and the digital world was just beginning to reveal its vast potential. We saw an opportunity to bridge cultures through language and technology, and with little more than a shared vision and a makeshift recording studio with homemade soundproofing, we embarked on our journey. Fast forward 20 years, Andovar has evolved into a language data powerhouse, with worldwide studios, supported by a globally nurtured network developed through our specialized divisions such as Andovar eLearning, Andovar Games, Andovar Studio, and our flagship Andovar Enterprise Localization. Despite our growth, we remain true to our roots, delivering award-winning language solutions that have earned us the trust of leading names in gaming, corporate sectors, eLearning, entertainment, and AI. Our excellence is recognized by G2, where we are ranked #1 in several language services categories. As a medium-sized company, we possess the agility and innovation that larger corporations often lack. This unique position allows us to deliver comprehensive solutions to major companies while maintaining the personalized service and attention to detail our clients expect. Our success is a testament to our commitment to quality and innovation. By honing our skills and focusing on areas where we excel, we consistently deliver cutting-edge solutions that meet the evolving needs of modern businesses. Looking to the future, we remain dedicated to our mission of connecting the world through language and technology. With a team of dedicated professionals and a proven track record, we are poised to continue our journey of growth and innovation, providing solutions that not only meet but exceed our clients' expectations. Our story is one of humble beginnings, relentless pursuit of excellence, and the ability to redraw language boundaries. It is a story that continues to evolve, driven by our passion for language, technology, and the belief that the best solutions are born from creativity and collaboration.

Average Rating: 4.4/5.0

Total Reviews: 119

Localize Lab

Localize Lab is a California-based translation & localization language service provider with branches in Canada, Australia, and China. Powered by technology, Localize Lab works in a wide variety of genres and formats, that translate software/apps, localize software UI and provide multilingual software/app testing in over 40 languages.

Average Rating: 5.0/5.0

Total Reviews: 9

BLEND Localization

BLEND (getblend.com) is a global localization service provider brought by the makers of One Hour Translation - the legacy on-demand translation platform founded in 2008. As an end-to-end technology-based multi-market enabler, BLEND is empowering global brands to establish a native presence in fundamentally different markets, worldwide. Our AI-driven technology stack, the diversity of our team, and our talented global community of linguists allow us to excel in providing high-quality localization services. With a multitude of ethnicities and global locations, we're dedicated to helping global companies weave their brands successfully into local markets. BLEND is a privately held company with offices in Tel Aviv, Atlanta, Kyiv, and Bucharest.

Average Rating: 4.4/5.0

Total Reviews: 51

Lionbridge

Lionbridge partners with brands to break barriers and build bridges all over the world. For more than 25 years, we have helped companies connect with global customers by delivering marketing, testing and globalization services in more than 300 languages. Through our world-class platform, we orchestrate a network of one million passionate experts in 5,000-plus cities, who partner with brands to create culturally rich experiences. Relentless in our love of linguistics, we use the best of human and machine intelligence to forge understanding that resonates with our customers' customers. Based in Waltham, Massachusetts, Lionbridge maintains solution centers in 27 countries. Learn more at www.lionbridge.com.

Average Rating: 4.5/5.0

Total Reviews: 10

Applingua

The world is ready to hear what you have to say. Let your message reach a global audience through native human translations from applingua. Having translated millions of words on thousands of projects for hundreds of businesses across the globe, our helpful human translators are ready to localize your message. What do you want to say today?

Average Rating: 5.0/5.0

Total Reviews: 1

BiLingoPlus

BiLingoPlus is an international translation and localization company dedicated to overcoming cultural barriers that grow your business in the global market. We helped dozens of startups, as well as industry leaders. Companies such as Facebook, Amazon, PayPal, Alibaba, Huawei and others trust us with their projects. We are certified Translators in the US and the EU. Localization and Translation Services: ➢ Machine Translation Post-Editing ➢ Human-based Translation ➢ Localization ➢ Language Quality Assurance Our services include: ➢ Soft multilingual localization ➢ Website translation and localization ➢ iOS & Android app localization ➢ Mobile/desktop game localization ➢ SEO & Keyword Localization to the local market ➢ Marketing translation, transcreation and copywriting ➢ Editing & Proofreading We will be happy to demonstrate why it is so comfortable and profitable to work with us. Please, visit our website or write to: info@bilingoplus.com

Average Rating: 5.0/5.0

Total Reviews: 3

Day Translations

Day Translations is a U.S.-based language services company providing professional translation, localization, and interpreting services in 500+ languages. We help enterprises, healthcare organizations, law firms, government agencies, nonprofits, and growing businesses communicate accurately across markets and communities. Our services include professional document translation, website and software localization, legal translation, medical and healthcare translation, certified translation, technical and corporate translation, and onsite, over-the-phone, video remote, and conference interpreting. Projects are supported by a global network of 20,000+ translators and interpreters, subject-matter specialists, and 24/7 project support. Day Translations combines human linguistic expertise with structured quality and information-security controls. Our credentials include ISO 17100 translation quality processes, ISO 27001 information security, HIPAA-aligned healthcare workflows, GSA vendor status, ATA membership, and BBB accreditation. We support one-time assignments and ongoing multilingual programs for organizations that need accurate, secure, and dependable language services.

Average Rating: 5.0/5.0

Total Reviews: 1

Seprotec

Seprotec is a comprehensive language services provider specializing in translation, interpreting, and intellectual property (IP) management solutions. With over 25 years of experience, Seprotec offers a wide array of services designed to facilitate effective global communication and protect clients' innovations across various industries. In the realm of translation, Seprotec delivers professional document translation services covering legal, technical, medical, and business documents. Their team of expert linguists ensures that translations are not only accurate but also culturally and contextually appropriate. The company supports over 220 languages, enabling clients to reach a diverse global audience. Additionally, Seprotec offers machine translation services, combining advanced AI technology with human expertise to provide fast and scalable multilingual content solutions. This approach allows for quicker turnaround times and cost efficiency while maintaining high-quality standards. Interpreting services are another cornerstone of Seprotec's offerings. They provide both on-site and remote interpreting solutions tailored to various settings, including conferences, meetings, and public services. Their extensive network of over 8,400 interpreters, proficient in numerous language combinations and specialized fields, ensures seamless communication across linguistic barriers. Services include simultaneous, consecutive, escort, whispered, and sign language interpreting, catering to the specific needs of each client. Seprotec also excels in intellectual property services, assisting clients in managing and protecting their IP assets globally. Their offerings encompass patent translation, patent search services, global foreign filing, patent renewal, and IP document management. By integrating multilingual expertise with structured IP processes, Seprotec simplifies cross-border coordination and ensures compliance across different jurisdictions, providing clients with peace of mind regarding their intellectual property portfolios. To enhance accessibility, Seprotec offers services such as closed captioning, subtitles for the deaf and hard of hearing (SDH), audio description, and sign language interpreting. These services make multimedia content more inclusive, allowing individuals with hearing or visual impairments to fully engage with various forms of media, including cinema, TV, video tutorials, and online training platforms. Furthermore, Seprotec provides eLearning localization services, adapting training content to meet the linguistic and cultural needs of international audiences. They support various learning management systems and authoring tools, ensuring that eLearning materials are engaging and effective across different regions. Their expertise includes translating and localizing videos, animations, training modules, presentations, and voiceovers, thereby enhancing the learning experience for users worldwide. Seprotec's commitment to quality is underscored by their adherence to international standards, holding certifications such as ISO 9001 for Quality Management Systems and ISO 17100 for Translation Services Management. These certifications reflect their dedication to delivering services that meet the highest industry standards. In summary, Seprotec offers a comprehensive suite of language and IP services designed to break language barriers, facilitate global communication, and protect clients' intellectual property. Their combination of human expertise and advanced technology ensures that clients receive accurate, efficient, and culturally sensitive solutions tailored to their specific needs.

Average Rating: 5.0/5.0

Total Reviews: 2

Simultrans

SimulTrans specializes in customizing world class globalization programs for its customers, providing translation, engineering, and formatting services for the localization of software, technical documents, websites, and marketing materials.

Average Rating: 4.0/5.0

Total Reviews: 1

String Incubator

A professional and affordable localization service

Average Rating: 5.0/5.0

Total Reviews: 1

3di Information Solutions

3di is an award-winning provider of technical communication, translation and content operations services. Established in 2002, 3di has a proven track record of delivering projects for businesses across a wide range of industries – including global telecommunications companies, software developers, robotics and automation specialists, and medical device manufacturers. With a highly qualified and experienced in-house technical writing team, an extensive worldwide network of specialists at its disposal and the latest authoring and translation tools, 3di is able to tackle a variety of projects, such as authoring award-winning technical manuals, providing translation services for technical content, and running full end-to-end technical content services, including the planning, creation, publishing, dissemination, and translation of technical content. 3di is BSI audited to ISO9001:2015 standards and a member of the ISTC (the Institute of Scientific and Technical Communicators). 3di has also won 12 UKTC awards, curated by the ISTC.

ALTA Language Services

ALTA Language Services has more than 30 years of experience in providing language services to individuals and businesses. ALTA is based in Atlanta, GA, and we have the resources to serve businesses nationwide from New York and Miami, to Houston, Chicago, Los Angeles, and San Francisco.

Aspena

Aspena provides translations, localization and other language services from and into more than 50 languages.

Aspose

Aspose is a software development company that offers numerous award-winning APIs which can be used by developers to create, edit, convert or render Office, OpenOffice, PDF, Images, ZIP, CAD, XPS, EPS, PSD, and many more file formats. APIs are available for different platforms, including .NET, Java, C++, Python, PHP, Xamarin, and Android, reporting solutions for Microsoft SharePoint, and rendering extensions for Microsoft SQL Server Reporting Services and JasperReports.