The Best AI Translation Tools

The best AI translation tools are reshaping how global businesses create and share content. From real-time speech conversion to instant document translation, today’s AI-powered solutions deliver speed, accuracy, and scalability that traditional, manual workflows can’t match. This guide explores 7 of the best AI translation tools, from advanced AI agent workflows to multimedia and mobile solutions, that help teams grow global markets faster, reduce costs, and maintain enterprise-grade quality.

Not all AI translation tools solve the same problem. Some are designed for quick, one-off translations. Others are built to support enterprise teams managing thousands of assets across markets. Before selecting a solution, it’s important to evaluate how well it fits your content volume, workflows, and quality requirements.

Basic machine translation can handle simple phrases, but enterprise content often includes industry terminology, brand voice, and regulatory language. Look for tools that learn from your content, allow terminology control, and maintain consistency across projects.

As translation demand grows, maintaining brand voice becomes harder. The right solution should allow you to define glossaries, style guides, and tone preferences so translations reflect your company’s standards, not generic language output.

Translation rarely happens in isolation. Marketing teams work in CMS platforms. Product teams ship updates from design and development tools. The best AI translation tools integrate directly into your existing systems so localization becomes part of your workflow, not a separate manual step.

Modern enterprises translate more than documents. Websites, product UI, knowledge bases, video subtitles, e-learning modules, and support tickets all require localization. Choose a platform that can handle multiple content formats and scale as demand increases.

AI improves speed, but high-stakes content often requires expert review. Solutions that combine AI with human oversight provide greater reliability for legal, technical, or customer-facing materials.

For many organizations, especially in regulated industries, content security is non-negotiable. Ensure the tool provides enterprise-grade security controls and clear data handling policies.

By evaluating tools against these criteria, businesses can move beyond simple translation and build a scalable, reliable multilingual content strategy that supports long-term growth.

Smartcat's AI agents are enterprise-ready, expert-enabled AI that translate, localize, and adapt content instantly — without sacrificing quality or brand voice. They combine the speed of generative AI with the precision of human expertise, learning from every project to continuously improve accuracy, style, and terminology consistency.

With AI agents, companies can automatically translate content across 280+ languages, preserve formatting in any file type, and customize for tone, length, or audience. They integrate directly with your workflows to handle everything from multilingual marketing campaigns to technical documentation, freeing your team to focus on strategy instead of repetitive tasks.

Beyond static text, AI Agents extend into multimedia, delivering video and audio transcription, subtitles, and AI-generated voice-overs.

Smartcat’s AI Agents also optimize budgets, cutting translation costs by up to 90% through a hybrid AI + human-in-the-loop approach with access to a vetted linguist Marketplace that’s 4–5x more cost-efficient than traditional agencies. With 30+ integrations, from WordPress to Figma, you can localize content at scale without leaving your existing tools.

AI Agents solve for:

• Escalating translation demand without budget increases

• Outdated content caused by long turnaround times

• Inconsistent quality from fragmented, manual workflows

DeepL utilizes artificial neural networks for translation, which can handle longer sentences and paragraphs without altering the original meaning. It provides various features such as language auto-detection, text-to-speech support, and alternative translations for word or phrase substitution.

DeepL supports over 30 languages and retains source document formatting in the translated output. While most features are available for free, DeepL Pro offers paid options for enhanced quality and customization, allowing users to edit translations, work with larger files, and choose formal or informal tone.

Google Translate is a widely used online translation service available on Android and iOS. It combines rule-based and neural machine translation models to improve translations over time. It can translate over 100 languages and includes voice and image translation capabilities.

Additional features like spell checking, transcription, and contextual translations contribute to its utility for multilingual texts, both on the cloud and mobile platforms. Other functions include automatic language detection, conversation mode for mobile, and an integrated dictionary.

Microsoft Translator, part of Microsoft's Cognitive Services, is a cloud-based machine translation service accessible from various Microsoft products. It offers translation into over 100 languages with high accuracy and fluency.

Features include real-time translations, audio translations, conversation support, and offline language support. Integration with Office allows for direct translation from emails, documents, and presentations. Developers can also utilize Microsoft Translator's APIs and SDKs for project integration.

Smartling is a translation management system for localizing apps, websites, and documents. It integrates seamlessly with existing CMS, devices, and design programs like Adobe Photoshop, Sketch, and Figma. Users can customize translation procedures and automate content localization.

Smartling utilizes both AI and human translators and includes features like translation memory and terminology management to improve accuracy and turnaround times. It offers task delegation, glossaries, and quality assurance tools for enhanced translation workflows.

Unbabel is a language operations platform that facilitates cross-cultural communication. Text undergoes a three-phase process: machine translation, human editing, and final editing by a Senior Editor. Unbabel can translate various content types in 30+ languages and integrates with platforms like Intercom, Salesforce, and Oracle. It offers dedicated customer success managers for enterprise clients and customizable translation workflows for different business processes. The recent launch of their Language Operations Platform enhances translation strategy with real-time quality reporting and customization options.

Systran provides a range of products, including neural machine translation engines, translation APIs, and specialized industry solutions. It emphasizes customization and domain-specific translations. Users can translate text instantly and preserve document layout, graphs, and illustrations in formats like Word, PowerPoint, Excel, and PDF. Systran allows the creation of custom glossaries and translation memories for consistent, high-quality translations. Advanced User Dictionaries enable users to specify custom rules for specific terminology. Systran's real-time translation tool offers API access and integrates with Microsoft Office, CAT, and TMS tools. It supports more than 55 languages and various content creation channels, making it suitable for large companies to collaborate and communicate with customers and team members.

As AI continues to evolve and more players enter the machine translation space, new tools and unexpected solutions will arrive to ease the stress around turnaround times, budgets and content volumes.

If you’re looking for quality translations at a more competitive price and pace than almost any other solution on the market, get a customized demo of Smartcat today.