Lokalize
Lokalize: A focused, free desktop CAT tool for gettext-based software localization. Ranked #12 of 29 in Computer-Assisted Translation Software by our editors (7.9/10); pricing: Free plan; best for open-source gettext localization work.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forOpen-source gettext localization work
- Free planYes
- Paid fromNone
- Facts checked22 Sep 2026
Where it wins
- Free, open-source desktop software for Linux, Windows, and macOS
- Supports PO editing, translation memory, glossaries, QA, and statistics
- Provides synchronization, merging, replication, and project management
Where it doesn't
- Primarily focused on software localization files and gettext PO catalogs
- OpenDocument translation requires conversion through XLIFF
- Desktop deployment may not suit teams seeking a broader platform workflow
Our verdict on Lokalize
Lokalize is an open-source computer-assisted translation system maintained by KDE. It is designed primarily for software localization work, with GNU gettext PO-file editing at its center. The application also processes OpenDocument files through XLIFF conversion. Its desktop deployment supports Linux, Windows, and macOS, making it a fit for translators and localization teams working with software translation files across those operating systems.
The feature set is centered on managing and improving localization workflows. Lokalize includes translation memory with TMX import and export, glossary management and lookup, search, translation statistics, and project management for translation files. Quality-assurance diff modes and syntax checking add review support, while synchronization, merging, and replication help coordinate changes across translation files. Integrations with Translate-Toolkit, Pology, and LanguageTool extend the surrounding localization workflow. These capabilities make Lokalize more suitable for gettext-based projects than for teams seeking a general-purpose CAT environment.
Lokalize’s main trade-off is its narrow focus. OpenDocument translation is available through XLIFF conversion rather than direct processing, and the product is delivered as desktop software under the GPL-2.0-or-later license. That positioning suits organizations and individual translators who value open-source tooling, local desktop applications, translation memory, terminology support, and built-in quality checks for software localization. Teams whose work centers on gettext PO catalogs should find the feature emphasis relevant; those seeking a broader platform for varied document types or a wider CAT workflow may prefer a different category fit.
Lokalize pricing
Lokalize fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Translation memory | Yes |
| Terminology management | Yes |
| QA checks | Yes |
| Alignment tool | Not verified |
| Deployment model | Desktop |
| Offline desktop use | Not verified |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 3 integrations: Translate-Toolkit, Pology, LanguageTool |
| Pricing | Free plan |
| Website | apps.kde.org |
| Facts checked | 22 Sep 2026 |
Lokalize integrations
Lokalize lists 3 integrations on its own site.
- Translate-Toolkit
- Pology
- LanguageTool
Alternatives to Lokalize
- 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 Lokalize alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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