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Translation · head to head

OmegaT vs Systran

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
Systran logo

Systran

Translation

Enterprise and on-premises machine translation, sold on per-user monthly plans and separate quoted API and installed-server products

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.; Systran per-seat web pricing at $25.99 to $49.99 a user per month is far more expensive than the raw per-character cost of Google, Microsoft or Amazon’s APIs for high-volume, low-touch use cases.
  • They diverge on capability: OmegaT covers Translation memory, Systran covers Systran Translate Pro.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which OmegaT and Systran actually diverge.

Attributes where OmegaT and Systran differ
AttributeOmegaTSystran
Starting priceFreeOn request
Pricing modelOpen source, no licence feePer user per month, or quote for Enterprise
Free tierYesNo
PlatformsWindows, macOS, LinuxWeb, Windows, Linux

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

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

Only in Systran

  • Systran Translate Pro
  • Systran Enterprise
  • Systran.io
  • CAT tool and TMS connectors
  • Custom model training
  • File translation

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 Systran
  • A small language service provider standardising on a free tool for individual translators before investing in a shared TMSnot Systran
  • A translator working with files from clients using commercial CAT tools, leveraging Okapi’s format support for compatibilitynot Systran
  • A developer or power user who wants to inspect, modify or extend the tool since it is open source under the GPLv3not Systran

Systran

  • A government or defence agency needing machine translation that never leaves its own network, which rules out cloud-only APIsnot OmegaT
  • A legal or financial services firm with confidentiality requirements that installs Systran Enterprise on-premisesnot OmegaT
  • A localisation team wanting native CAT tool and TMS connectors rather than building raw API integration themselvesnot OmegaT
  • A small team of translators using Translate Pro’s per-seat web plans for interactive, human-facing translation work rather than bulk automated contentnot 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.

Systran

  • Per-seat web pricing at $25.99 to $49.99 a user per month is far more expensive than the raw per-character cost of Google, Microsoft or Amazon’s APIs for high-volume, low-touch use cases.
  • On-premises Enterprise deployment requires infrastructure and IT resourcing that a simple cloud API call does not, adding real implementation cost and time.
  • Enterprise and Systran.io pricing is not published, so budgeting for that tier requires a sales quote before any real comparison is possible.
  • Its market share and brand recognition are smaller than Google, Microsoft or Amazon, so integration examples, community support and third-party tooling are less abundant.
  • Translation quality for common language pairs is broadly comparable to the major cloud APIs, so the main reason to pay a premium is data residency, not superior output.

Pricing, plan by plan

OmegaT

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

Systran

On request
  • Translate Pro Plus$25.99/month
    • Per user per month
    • 55 languages, file translation, up to 10 users
  • Translate Pro Premium$49.99/month
    • Per user per month
    • CAT tool/TMS connectors, roughly 2,000 pages of text
  • Systran Enterprise / Systran.io$undefined/year
    • Quoted pricing
    • On-premises installation or hosted API
    • Custom model training and SLA-backed support

Which should you pick?

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

Choose Systran if

  • You need systran translate pro.
  • You work on Web, Windows, Linux.
  • You also want systran enterprise.
Systran review

Questions people ask

Is OmegaT or Systran better?
Neither clearly leads. OmegaT starts at Free and Systran at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OmegaT or Systran?
OmegaT has a free tier; the other does not. Paid plans start at Free for OmegaT and On request for Systran.
Does OmegaT or Systran run on more platforms?
OmegaT runs on Windows, macOS, Linux. Systran runs on Web, Windows, Linux.
Can I use OmegaT for free?
Yes. OmegaT has a free tier, so you can try it without paying. Systran 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 Systran is typically brought in for.
What can OmegaT do that Systran cannot?
OmegaT covers Translation memory, Glossary support, Wide format support, Project-based workflow. Systran covers Systran Translate Pro, Systran Enterprise, Systran.io, CAT tool and TMS connectors.

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.

Systran: Why would I pay more for Systran than Google’s API?

Primarily for on-premises deployment, where translation never leaves your own network, which matters for government, defence or confidentiality-bound organisations.

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.

Systran: Is Systran priced per character like Google or Amazon?

The Translate Pro web plans are priced per user per month; only the Enterprise and Systran.io API products are usage-based, and their pricing is quoted rather than published.

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.

Systran: Who owns Systran now?

It operates as part of ChapsVision, a French technology group, following a series of ownership changes.

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