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Translation · head to head

DeepL vs OmegaT

DeepL logo

DeepL

Translation

AI-powered language translation

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: DeepL pricing details not displayed on homepage; requires visiting separate pricing page; 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: DeepL covers 30+ languages, OmegaT covers Translation memory.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which DeepL and OmegaT actually diverge.

Attributes where DeepL and OmegaT differ
AttributeDeepLOmegaT
Pricing modelfreemiumOpen source, no licence fee
PlatformsWeb, Desktop, Mobile, ApiWindows, macOS, Linux
Founded2017Unknown

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 DeepL

  • 30+ languages
  • Document translation
  • Glossary
  • Formal/informal toggle
  • Browser extension
  • API access
  • Desktop app
  • Web support

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.

DeepL

  • ai tools managementnot OmegaT
  • Workflow automationnot OmegaT
  • Reportingnot OmegaT

OmegaT

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

Where each one falls short

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

DeepL

  • Pricing details not displayed on homepage; requires visiting separate pricing page
  • Free tier limitations not specified on main site

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

DeepL

Free
  • FreeFree
    • 3 document translations
    • 5000 characters
  • Starter$8.99/month
    • 5 documents/month
    • Unlimited text
  • Advanced$28.99/month
    • 20 documents/month
    • Glossary

OmegaT

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

Which should you pick?

Choose DeepL if

  • You need 30+ languages.
  • You want to start without paying.
  • You work on Web, Desktop, Mobile, Api.
  • You also want document translation.
DeepL 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 DeepL or OmegaT better?
Neither clearly leads. DeepL 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, DeepL or OmegaT?
DeepL starts at Free and OmegaT at Free.
Does DeepL or OmegaT run on more platforms?
DeepL runs on Web, Desktop, Mobile, Api. OmegaT runs on Windows, macOS, Linux.
Can I use DeepL for free?
Both have a free tier, so you can try either at no cost before committing.
What is DeepL best used for?
DeepL is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what OmegaT is typically brought in for.
What can DeepL do that OmegaT cannot?
DeepL covers 30+ languages, Document translation, Glossary, Formal/informal toggle. OmegaT covers Translation memory, Glossary support, Wide format support, Project-based workflow.

Answered from the vendors’ own pages

DeepL: Does DeepL offer a free version?

Yes. DeepL offers free trial access and a free API key option, plus a paid DeepL Pro subscription tier and Enterprise solutions.

Source
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.

DeepL: How many languages does DeepL support?

DeepL supports translation into 100+ languages including popular pairs like English-Chinese, English-French, and Chinese-English.

Source
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.

DeepL: Does DeepL support voice translation?

Yes. DeepL Voice enables real-time voice translation in virtual meetings and in-person conversations for instant collaboration.

Source
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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