OpenTM2
OpenTM2: A free Windows CAT tool with core memory, terminology, alignment, and reporting features. Ranked #26 of 29 in Computer-Assisted Translation Software by our editors (6.6/10); pricing: Free plan; best for free Windows users needing core offline CAT tools.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forFree Windows users needing core offline CAT tools
- Free planYes
- Paid fromFree
- Offline desktop useYes
- Facts checked21 Sep 2026
Where it wins
- Free and open source with no licensing costs
- Includes translation memory, alignment, terminology, and project reporting
- Exchanges TMX, TBX, XLIFF, and supported document formats
Where it doesn't
- Limited to Windows desktop use
- Fewer verified QA capabilities than some alternatives
- Fewer verified integrations with external platforms
Our verdict on OpenTM2
OpenTM2 is an open-source computer-assisted translation system for translators, localization teams, language service providers, and enterprise translation workflows. It is designed for local desktop use rather than as a cloud-based CAT application, making it suitable for Windows users who need offline translation-memory workflows without licensing costs. The core workspace combines a translation editor with the Translation Workbench, reusable translation assets, terminology tools, and project management features.
Its strongest area is the set of tools around translation memory and terminology. Translation memory databases provide exact and fuzzy match proposals, while alignment can create an initial memory from source and target files. Terminology lists, dictionaries, project glossaries, and term processing support consistent language across projects. Configurable editor shortcut keys add control for translators who prefer keyboard-driven work. Project folders, translation progress, reporting, and word counts give teams visibility into project status without requiring a cloud service.
OpenTM2 also fits workflows that depend on standard exchange formats. Import and export cover TMX, TBX, XLIFF, and supported document formats, helping users move translation assets between compatible tools. The trade-off is a narrow deployment model: OpenTM2 is a Windows desktop application, not a cloud-based CAT platform. Its published feature set emphasizes memory, terminology, alignment, editing, and reporting, with fewer verified quality-assurance capabilities and external integrations. Choose OpenTM2 if free, open-source, offline CAT functionality is the priority; teams needing broader platform connectivity or a non-Windows environment should consider an alternative.
Your product? Our editors can test OpenTM2 in depth and publish a review, labelled as paid · from $149/mo →
OpenTM2 pricing
OpenTM2 fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Translation memory | Yes |
| Terminology management | Yes |
| QA checks | Not verified |
| Alignment tool | Yes |
| Deployment model | Desktop |
| Offline desktop use | Yes |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | opentm2.org |
| Facts checked | 21 Sep 2026 |
Alternatives to OpenTM2
- SmartcatBroad multilingual automation with strong CAT, collaboration, and integration coverage.9.4
- TradosA balanced CAT suite with cloud, desktop, AI, QA and workflow tools.9.2
- memoQA full-featured CAT environment for professional translation teams, with no free plan.9.0
See all OpenTM2 alternatives →
Also Ranked In
OpenTM2 is ranked in 2 of our directories.
Used OpenTM2? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used OpenTM2 for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
OpenTM2 is listed in our Computer-Assisted Translation Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/opentm2/"><img src="https://www.itechguides.com/best/badge/opentm2.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update