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Translation · head to head

MateCat vs Unbabel

MateCat logo

MateCat

Translation

Free, browser-based CAT tool under the LGPL, developed and hosted by the translation company Translated

From
Free
Rated
-
Full reviewWebsite
Unbabel logo

Unbabel

Translation

Human-in-the-loop translation combining machine translation with human post-editing, priced per word rather than per character

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only MateCat has a free tier, so it costs nothing to try first.
  • Each has a real cost: MateCat the hosted version most users rely on depends on Translated srl’s continued operation and infrastructure decisions, unlike a self-run desktop tool.; Unbabel the attractive low per-word rate requires a minimum annual commitment reported around $120,000, which prices out most small and mid-sized businesses.
  • They diverge on capability: MateCat covers Browser-based CAT interface, Unbabel covers Machine translation with human post-editing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which MateCat and Unbabel actually diverge.

Attributes where MateCat and Unbabel differ
AttributeMateCatUnbabel
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo

Identical on both: platforms (Web), 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 MateCat

  • Browser-based CAT interface
  • Machine translation suggestions
  • Translation memory
  • Quality assurance checks
  • Project management
  • File translation

Only in Unbabel

  • Machine translation with human post-editing
  • Multiple quality tiers
  • Customer support integration
  • Translation quality scoring
  • Human translator network
  • Enterprise reporting

What people use each for

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

MateCat

  • A freelance translator wanting a no-install, browser-based CAT tool with built-in machine translation suggestionsnot Unbabel
  • A small agency wanting basic hosted project management without paying for a commercial TMSnot Unbabel
  • A translator who wants MT suggestions from multiple engines surfaced alongside translation memory matches in one interfacenot Unbabel
  • A team occasionally needing quick file translation through a browser without setting up desktop softwarenot Unbabel

Unbabel

  • A multilingual customer support operation needing translated tickets accurate enough to send directly to customersnot MateCat
  • An enterprise with predictable, high-volume support translation needs able to justify a six-figure annual commitmentnot MateCat
  • A company wanting different quality tiers (raw MT versus human post-edited) depending on the sensitivity of the contentnot MateCat
  • A business integrating translation directly into an existing helpdesk platform rather than building a custom pipelinenot MateCat

Where each one falls short

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

MateCat

  • The hosted version most users rely on depends on Translated srl’s continued operation and infrastructure decisions, unlike a self-run desktop tool.
  • It is developed by a commercial translation company whose own paid services sit alongside the free tool, which is worth being aware of when evaluating vendor neutrality.
  • Being browser-based, it requires a stable internet connection, unlike OmegaT’s fully offline desktop application.
  • Advanced terminology management and enterprise-scale project features are more limited than a paid commercial TMS such as memoQ or Smartling.
  • Self-hosting the open source LGPL code independently of Translated’s hosted service requires technical setup effort that most individual translators are unlikely to undertake.

Unbabel

  • The attractive low per-word rate requires a minimum annual commitment reported around $120,000, which prices out most small and mid-sized businesses.
  • It should not be compared directly to per-character machine translation APIs, since the pricing unit, inclusion of human review and use case are all different, and doing so understates the real cost.
  • Turnaround time is inherently slower than pure machine translation, since human post-editors are part of the pipeline, which matters for real-time chat use cases.
  • Public pricing detail is limited outside the enterprise tier, so smaller buyers get little transparency into what they would actually pay before a sales conversation.
  • Quality and turnaround depend partly on the availability of the human post-editor network for a given language pair, which can vary for less common languages.

Pricing, plan by plan

MateCat

Free
  • MateCatFree
    • Free browser-based CAT tool, LGPL licensed
    • Hosted and operated by Translated srl

Unbabel

On request
  • Unbabel Enterprise$undefined/year
    • Per-word pricing reported from around $0.00015/word at top volume
    • Minimum annual commitment reported around $120,000
    • Rate depends on volume, language pairs, turnaround and quality tier

Which should you pick?

Choose MateCat if

  • You need browser-based cat interface.
  • You want to start without paying.
  • You also want machine translation suggestions.
MateCat review

Choose Unbabel if

  • You need machine translation with human post-editing.
  • You also want multiple quality tiers.
Unbabel review

Questions people ask

Is MateCat or Unbabel better?
Neither clearly leads. MateCat starts at Free and Unbabel at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, MateCat or Unbabel?
MateCat has a free tier; the other does not. Paid plans start at Free for MateCat and On request for Unbabel.
Does MateCat or Unbabel run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use MateCat for free?
Yes. MateCat has a free tier, so you can try it without paying. Unbabel starts at On request.
What is MateCat best used for?
MateCat is most often used for a freelance translator wanting a no-install, browser-based cat tool with built-in machine translation suggestions, a small agency wanting basic hosted project management without paying for a commercial tms, a translator who wants mt suggestions from multiple engines surfaced alongside translation memory matches in one interface, a team occasionally needing quick file translation through a browser without setting up desktop software. Of those, a freelance translator wanting a no-install, browser-based cat tool with built-in machine translation suggestions and a small agency wanting basic hosted project management without paying for a commercial tms are not what Unbabel is typically brought in for.
What can MateCat do that Unbabel cannot?
MateCat covers Browser-based CAT interface, Machine translation suggestions, Translation memory, Quality assurance checks. Unbabel covers Machine translation with human post-editing, Multiple quality tiers, Customer support integration, Translation quality scoring.

Answered from the vendors’ own pages

MateCat: Is MateCat really free?

Yes, it is free to use as a hosted browser-based tool and released as open source under the LGPL.

Unbabel: Is Unbabel comparable to Google Translate’s API on price?

No, they are different products: Unbabel is a managed service billed per word with human post-editing included, while Google’s API is raw machine translation billed per character.

MateCat: Who maintains MateCat?

Translated srl, an Italian translation company, develops and hosts it; this differs from OmegaT, which is maintained by a volunteer open source community.

Unbabel: What is the minimum commitment?

Enterprise pricing has been reported as requiring a minimum annual commitment around $120,000, which is a meaningful barrier for smaller buyers.

MateCat: Can I self-host MateCat instead of using Translated’s hosted version?

The code is open source under the LGPL and technically self-hostable, but doing so requires meaningful technical setup most individual users skip in favour of the hosted service.

Unbabel: Does Unbabel offer fully human translation?

Yes, alongside raw machine translation and MT-plus-post-edit tiers, priced differently by the level of human involvement.

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