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Translation · head to head

OmegaT vs SDL Trados Studio

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
SDL Trados Studio logo

SDL Trados Studio

Translation

Windows desktop CAT tool that agencies treat as the default exchange format

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only OmegaT has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; SDL Trados Studio it runs on Windows only, so macOS translators pay for a virtual machine or a second computer before they can accept work.
  • They diverge on capability: OmegaT covers Glossary support, SDL Trados Studio covers Term base integration.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which OmegaT and SDL Trados Studio actually diverge.

Attributes where OmegaT and SDL Trados Studio differ
AttributeOmegaTSDL Trados Studio
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsWindows, macOS, LinuxWindows, Web

Identical on both: 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 OmegaT

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

Only in SDL Trados Studio

  • Term base integration
  • File filters
  • Alignment
  • Quality assurance checks
  • App store extensions

Both cover

  • Translation memory

What people use each for

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

OmegaT

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

SDL Trados Studio

  • Freelance translators who must open and return agency supplied Studio packagesnot OmegaT
  • Language service providers running multi-vendor projects with shared memories and term basesnot OmegaT
  • Regulated translation work where segment level memory matches must be auditablenot OmegaT
  • Translating formats such as InDesign or structured XML where tag handling is the hard partnot OmegaT

Where each one falls short

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

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.

SDL Trados Studio

  • It runs on Windows only, so macOS translators pay for a virtual machine or a second computer before they can accept work.
  • A perpetual licence covers the version you bought, and each major release is a further purchase, so the total cost over five years resembles a subscription without being described as one.
  • The learning curve is long: project settings, filters and memory configuration have to be understood before quality output is possible, which makes casual use impractical.
  • Memories and projects are local by default, and real collaboration needs GroupShare or the cloud tiers at extra cost, so two translators sharing one memory is a paid upgrade.
  • Third party plugins from the app store are maintained by their authors and frequently stop working after a major Studio release, which strands workflows that depend on them.

Pricing, plan by plan

OmegaT

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

SDL Trados Studio

On request
  • SDL Trados Studio$undefined/year
    • Freelance, Professional and cloud tiers sold separately
    • Perpetual desktop licences and subscriptions both offered
    • Prices vary by region, reseller and frequent discount campaigns

Which should you pick?

Choose OmegaT if

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

Choose SDL Trados Studio if

  • You need term base integration.
  • You work on Windows, Web.
  • You also want file filters.
SDL Trados Studio review

Questions people ask

Is OmegaT or SDL Trados Studio better?
Neither clearly leads. OmegaT starts at Free and SDL Trados Studio at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OmegaT or SDL Trados Studio?
OmegaT has a free tier; the other does not. Paid plans start at Free for OmegaT and On request for SDL Trados Studio.
Does OmegaT or SDL Trados Studio run on more platforms?
OmegaT runs on Windows, macOS, Linux. SDL Trados Studio runs on Windows, Web.
Can I use OmegaT for free?
Yes. OmegaT has a free tier, so you can try it without paying. SDL Trados Studio starts at On request.
What is OmegaT best used for?
OmegaT is most often used for a freelance translator who wants translation memory and fuzzy matching without paying for a trados or memoq licence, a small language service provider standardising on a free tool for individual translators before investing in a shared tms, a translator working with files from clients using commercial cat tools, leveraging okapi’s format support for compatibility, a developer or power user who wants to inspect, modify or extend the tool since it is open source under the gplv3. Of those, a freelance translator who wants translation memory and fuzzy matching without paying for a trados or memoq licence and a small language service provider standardising on a free tool for individual translators before investing in a shared tms are not what SDL Trados Studio is typically brought in for.
What can OmegaT do that SDL Trados Studio cannot?
OmegaT covers Glossary support, Wide format support, Project-based workflow, Machine translation plugin support. SDL Trados Studio covers Term base integration, File filters, Alignment, Quality assurance checks. Both handle Translation memory.

Answered from the vendors’ own pages

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.

SDL Trados Studio: Is it still called SDL Trados?

The product is now sold as Trados Studio by RWS, which acquired SDL in 2020. Older documentation and job adverts still say SDL Trados.

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.

SDL Trados Studio: Do I need it if my clients use a cloud TMS?

Often yes. Agencies still send Studio packages, and accepting them without the tool means manual conversion and lost memory matches.

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.

SDL Trados Studio: Can I run it on a Mac?

Not natively. Translators use Parallels, Boot Camp on older hardware, or a Windows virtual desktop.

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