AI Translator That Uses Every Engine, Not Just One

Smartcat routes your content through multiple AI translation engines, applies your own glossary and translation memory on top, and sends anything that matters to a human reviewer — in 280+ languages and 80+ file formats.

Translate any file. In seconds.
Images, docs, video, audio, courses — pick a format and drop your file.
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1,000+ enterprise brands translate in Smartcat

The most accurate AI-driven translator

I want to translate from

to

Time of Smartcat usage

3 months

Translation accuracy

95%

Smartcat’s AI translation software chooses the best algorithm for your language pair, learns from your edits, and gets better the more you use it.

Want to know how it works? Talk to our solutions expert.

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Every Kind of Content an AI Translator Has to Handle

Documents, video, audio, images, websites, software strings and courses all behave differently. Each one is handled by a purpose-built AI coworker — Content Translator, Media Translation, Image Translation, Software Localization, Learning Content — rather than a single generic engine.

Pick the content type you are dealing with.

Document Translation

Instantly translate documents across multiple formats using an AI agent for precision and speed.

Video Translation

Translate and localize video, with accurate subtitles and dubbing.

Audio Translation

Convert and translate audio files efficiently with our Media Translation Agent.

Image Translation

Quickly translate text within images while preserving the original layout and design.

Website Translation

Easily translate entire websites, maintaining SEO and user experience.

Software Localization

Localize software applications accurately with our Software Localization Agent.

Content Generator

Create high-quality, multilingual content with our Canvas Editor.

Course Creator

Design and localize courses quickly using the Learning Content Agent.

AI Translation Software That Isn't a Single Engine

Smartcat's AI translator is a platform, not an engine.

  • It routes your content through multiple machine-translation engines and large language models, into 280+ languages.
  • It applies your glossary and translation memory to every job.
  • Anything that needs human judgment goes to a reviewer.

It handles 80+ file formats, and every approved edit improves the next translation.

Multiple engines, chosen per project

Quality varies by language pair and content type, and the gap between two engines on the same text is often wider than the gap between two versions of the same engine. Smartcat routes across engines and models rather than locking you into one vendor's output, and switching is a setting, not a migration. See choosing an MT engine.

Your terminology is applied, not hoped for

Approved terms and past translations are stored centrally and applied to every job automatically, so the product name, the tagline and the legal line come out identically across teams and tools. A QA rule flags any segment where the approved term was not used. More in Intelligence Fabric.

The coworkers that do the work, and where you stay in control

The Content Translator Coworker produces the translation. The Reviewer Coworker checks it. The Content Update Coworker re-runs content that changed rather than the whole file. You choose, per content type, whether a human sees it before it ships.

280+

languages

available the moment you sign up

80+

file formats

supported, from DOCX and PDF to SRT, SCORM and XLIFF

30+

integrations

with your existing platforms

500k+

reviewers

providing high-quality translation services

Machine Translation That Learns From Every Edit

Machine translation uses AI to convert text from one language to another automatically. Smartcat pairs neural machine translation with adaptive AI agents, your translation memories, and your glossaries — so every edit your team makes trains the engine, and output quality keeps improving with use.

Run machine translation on documents, websites, video subtitles, and software strings in 280+ languages and 80+ file formats — then decide per project whether raw machine translation is enough or a human pass is worth it.

Translate instantly, at any scale

Machine-translate a one-page PDF or a 100,000-string localization project the same way: upload, pick your language pair, download. No engine setup, no per-engine contracts.

Raise quality with adaptive AI

Generic machine translation ignores your voice. Smartcat's AI agents apply your translation memories, glossaries, and past edits, so terminology and brand style hold across every language.

Add human review where it matters

Raw machine translation is rarely publish-ready for high-visibility content. Built-in machine translation post-editing (MTPE) lets you invite reviewers — your team or 500,000+ vetted linguists from the Smartcat Marketplace — directly in the editor.

What Changes When Translation Runs in One Place

70%

Lower Translation Costs

Stanley Black & Decker reduced translation costs by up to 70% — from $200–$300 to $1.20 per 1,000 words — while cutting turnaround time and keeping quality consistent.

Read Case Study

Stanley Black & Decker

17%

Lower Translation Expenses

Smartcat’s AI translation technology, Smartwords, enables us to easily reuse previously translated content and has reduced our translation expenses by 17%.

Read Case Study

Peggy Liao

Language Access Program and Policy Specialist, City of Seattle

9.6/10

for ease of setup, on G2

9.3/10

for ease of use, on G2

Top AI in Training

company

SOC 2 Type II

compliant organization

Upload a Real File and Compare the Export

Pick your languages, run a file you actually work with, and compare the export against the original. 15 days, 15,000 Smartwords, no credit card.

Enable Team Collaboration in a Single Platform

Localization Managers

Let your internal clients handle ad hoc translations without your assistance.

Marketing and Sales

Translate global content and designs into 280+ languages in minutes.

Learning & Development

Make learning assets available to employees in their own language.

Product Teams

Develop and translate your application in parallel, in multiple branches.

Run Your Own Content Through It Before You Decide

Upload a file, pick your languages, and see what comes back — with your terminology applied, from whichever engine handles your language pair best. Free for 15 days with 15,000 Smartwords and full access to translation capabilities, no credit card.

Get Brand-Specific, High-Quality Content From AI Agents

Leverage your existing content library— eLearning courses, blog posts, web pages, product, and support information— to train your AI agents on your preferred terminology and style.

AI Translation — the Practical Questions

How do Smartcat’s AI coworkers learn from my content?

They read your glossaries and translation memories on every job, and every edit your reviewers confirm is written back — so the next file starts from a decision your team already made.

You set, per content type, whether a human sees the output before it ships. Reviewers can be your own team or vetted linguists from the Smartcat Marketplace, working in the same editor.

How can Smartcat help my team scale content creation with AI?

Smartcat’s AI coworkers automate translation across formats, and they draw on the content library you already have — eLearning courses, marketing content, product information.

The result is new multilingual, on-brand content in minutes, while ensuring consistency and quality.

How is this different from DeepL or Google Translate?

DeepL and Google Translate are each one engine. Smartcat is a platform that routes across multiple engines and large language models, so you can choose the engine per project instead of accepting one vendor's output for every language pair.

  • Your terminology travels — glossary and translation memory are applied to every job rather than to a single tool.
  • Human review is in the same workflow — through a marketplace of vetted experts.
  • One pipeline for everything — 80+ file formats plus video, courses and websites, not just pasted text.

DeepL and Google Translate are trademarks of their respective owners. Smartcat is not affiliated with, endorsed by, or sponsored by either of them.

What does it cost?

Plans start at $1,200/year (Adapt) and scale through Accelerate and the enterprise tiers. Translation is metered in Smartwords — usage credits based on word count — and text already in your translation memory is not charged again, so a page you re-publish with two edited sentences costs two sentences. Full detail on the pricing page and in Understanding Smartwords.

What are the supported file formats for AI translation?

Smartcat offers 80+ supported file formats including PDFs, MP4, MOV, DOCX, JPG, SCORM, and more.

What language pairs can I translate with Smartcat?

Smartcat can translate your content into more than 280 languages. You can always check out our latest list of supported languages.

Is there a free AI translator?

For 15 days here, yes — 15,000 Smartwords with full access to translation capabilities, no credit card required. After that it is a paid plan starting at $1,200/year.

There is no permanently free tier, and the free text-box tools are genuinely free and genuinely better for a single paragraph. What you pay for is terminology that holds across teams, memory that stops you paying twice, and a review step.

Where does it fall short?

If you want to understand one paragraph in a language you do not read, this is the wrong tool — open a free text-box translator, it will be faster and the answer will be just as good.

Smartcat earns its keep when translation is a repeated process rather than a one-off: many files, many languages, terminology that has to stay consistent, and someone accountable for whether the output is publishable. Below that threshold it is overhead.

Is our content confidential?

Smartcat is SOC 2 Type II compliant. Content is encrypted in transit and at rest, workspaces are isolated, and access is per user with role-based rights — see User Roles & Access Rights. SSO through Azure AD, Okta and ADFS is available on higher tiers.

What is the difference between machine translation and AI translation?

Machine translation is the automated conversion of text between languages — today almost always neural machine translation (NMT). AI translation is broader: it adds large language models and AI coworkers that understand context, apply your terminology, and learn from your corrections. Smartcat combines both in one workflow — machine translation for speed, adaptive AI coworkers for quality that improves over time.

Does Smartcat support machine translation post-editing (MTPE)?

Yes. Every machine-translated project can go through post-editing in the Smartcat Editor: your reviewers see source and target side by side, and their edits feed back into your translation memories so the same correction never has to be made twice. If you don’t have in-house reviewers for a language, you can hire vetted post-editors from the Smartcat Marketplace without leaving the platform.

How accurate is AI translation, really?

It depends on the language pair, the content type, and how much of your own data the engine can draw on — so a single headline number would be misleading.

Out of the box, quality is strongest on high-resource languages and factual content. It improves as your translation memory and glossary accumulate, and human post-editing closes the gap on content where an error is expensive.

Question not answered here? Book a demo — a 1:1 consultation with a Smartcat specialist, no commitment, no form queue.

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