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Translation · head to head

Amazon Translate vs OmegaT

Amazon Translate logo

Amazon Translate

Translation

AWS machine translation API priced at $15 per million characters, with a 2 million character monthly free tier for the first 12 months

From
Free
Rated
-
Full reviewWebsite
OmegaT logo

OmegaT

Translation

Free, open source desktop CAT tool under the GPLv3, maintained by a volunteer community rather than a company

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Amazon Translate the generous 2 million character monthly free tier applies only for a customer’s first 12 months on AWS, so translation costs step up materially in year two with no change in usage.; OmegaT there is no commercial support contract available, so a business relying on it for critical work has only community forums to fall back on when something breaks.
  • They diverge on capability: Amazon Translate covers Text translation API, OmegaT covers Translation memory.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Amazon Translate and OmegaT actually diverge.

Attributes where Amazon Translate and OmegaT differ
AttributeAmazon TranslateOmegaT
Pricing modelPer million charactersOpen source, no licence fee
PlatformsWebWindows, macOS, Linux

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Translation).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Amazon Translate

  • Text translation API
  • Document translation
  • Active Custom Translation
  • Real-time document translation
  • Formality control
  • AWS-native integration

Only in OmegaT

  • Translation memory
  • Glossary support
  • Wide format support
  • Project-based workflow
  • Machine translation plugin support
  • Cross-platform desktop app

What people use each for

The jobs each tool is most often brought in to do.

Amazon Translate

  • An AWS-native development team wanting translation billed through the same console as the rest of their infrastructurenot OmegaT
  • A new AWS customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tiernot OmegaT
  • A team building a translation pipeline directly integrated with S3 and Lambda for document processingnot OmegaT
  • A business wanting formality-adjusted output for specific language pairs in customer-facing contentnot OmegaT

OmegaT

  • A freelance translator who wants translation memory and fuzzy matching without paying for a Trados or memoQ licencenot Amazon Translate
  • A small language service provider standardising on a free tool for individual translators before investing in a shared TMSnot Amazon Translate
  • A translator working with files from clients using commercial CAT tools, leveraging Okapi’s format support for compatibilitynot Amazon Translate
  • A developer or power user who wants to inspect, modify or extend the tool since it is open source under the GPLv3not Amazon Translate

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Amazon Translate

  • The generous 2 million character monthly free tier applies only for a customer’s first 12 months on AWS, so translation costs step up materially in year two with no change in usage.
  • There is no consumer-facing app or website, so it is unusable for casual personal translation the way Google Translate or Microsoft Translator are.
  • Document translation of Office files costs double the standard per-character rate, which is easy to underestimate when budgeting a document-heavy project.
  • Active Custom Translation, the tool for improving output with domain-specific data, costs four times the standard rate at $60 per million characters.
  • As with all major MT APIs, output for low-resource languages and specialised terminology often still needs human review, so it does not substitute for a human translation service on customer-facing or legally sensitive content.

OmegaT

  • There is no commercial support contract available, so a business relying on it for critical work has only community forums to fall back on when something breaks.
  • It lacks the cloud-hosted, real-time collaborative project management features of commercial TMS platforms like memoQ or Smartling.
  • The interface is a Java desktop application with a dated look and feel compared with modern web-based CAT tools, which affects onboarding speed for new users.
  • Release cadence and feature development depend on volunteer contributor availability rather than a company roadmap, so some requested features take a long time to arrive, if ever.
  • Machine translation integration requires configuring third-party API keys (Google, DeepL) separately, adding setup steps a commercial all-in-one tool would handle natively.

Pricing, plan by plan

Amazon Translate

Free
  • Standard text translation$15/month
    • $15 per million characters
    • 2 million characters per month free for the first 12 months on AWS
  • Document translation (Office files)$30/month
    • $30 per million characters, double the standard rate
  • Real-time document translation$15/month
    • Text and HTML documents, no free tier
  • Active Custom Translation$60/month
    • $60 per million characters
    • 500,000 characters per month free for the first 2 months

OmegaT

Free
  • OmegaTFree
    • Full CAT tool functionality, GPLv3 licensed
    • No paid tier, no vendor support contract available

Which should you pick?

Choose Amazon Translate if

  • You need text translation api.
  • You want to start without paying.
  • You also want document translation.
Amazon Translate review

Choose OmegaT if

  • You need translation memory.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want glossary support.
OmegaT review

Questions people ask

Is Amazon Translate or OmegaT better?
Neither clearly leads. Amazon Translate starts at Free and OmegaT at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Translate or OmegaT?
Amazon Translate starts at Free and OmegaT at Free.
Does Amazon Translate or OmegaT run on more platforms?
Amazon Translate runs on Web. OmegaT runs on Windows, macOS, Linux.
Can I use Amazon Translate for free?
Both have a free tier, so you can try either at no cost before committing.
What is Amazon Translate best used for?
Amazon Translate is most often used for an aws-native development team wanting translation billed through the same console as the rest of their infrastructure, a new aws customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tier, a team building a translation pipeline directly integrated with s3 and lambda for document processing, a business wanting formality-adjusted output for specific language pairs in customer-facing content. Of those, an aws-native development team wanting translation billed through the same console as the rest of their infrastructure and a new aws customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tier are not what OmegaT is typically brought in for.
What can Amazon Translate do that OmegaT cannot?
Amazon Translate covers Text translation API, Document translation, Active Custom Translation, Real-time document translation. OmegaT covers Translation memory, Glossary support, Wide format support, Project-based workflow.

Answered from the vendors’ own pages

Amazon Translate: How generous is the free tier really?

2 million characters per month, the largest of the three major cloud APIs, but only for the first 12 months after which standard per-character pricing applies to everything.

OmegaT: Is OmegaT really free, with no paid version?

Yes, it is fully free and open source under the GPLv3, with no commercial edition or vendor support contract sold alongside it.

Amazon Translate: Is there a consumer app like Google Translate?

No, Amazon Translate is a developer API only, accessed through the AWS console and SDKs, with no separate public-facing app.

OmegaT: Who maintains OmegaT?

A volunteer open source community, not a company; this differs from MateCat, which is developed and hosted by the company Translated.

Amazon Translate: How much does document translation cost compared to text?

Double the standard rate, at $30 per million characters for Office file formats.

OmegaT: Can it open files from Trados or Wordfast?

Yes, via the bundled Okapi Filters plugin, which supports SDLXLIFF, TTX, TXML and many other commercial CAT tool formats.

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