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Best / Translation and localization

Best open-source Translation and localization

The best self-hosted localization split in the c17.io catalog is Weblate for a GPL-3.0 Git-tight desk (the published Crowdin stack), Tolgee when you want that Apache-2.0 platform and will skip ee/, LibreTranslate when the job is an AGPL-3.0 machine-translation API rather than a CAT desk, and LanguageTool when the job is grammar rather than strings. This is not Crowdin's every agency or MT SKU. Typeform Video / VideoAsk was skipped.

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Ranked picks

  1. 1

    Weblate

    GPL-3.0 localization with version-control integration — the c17 Crowdin path. /compare/weblate-vs-tolgee.

    When to pick it: Strings, translators, and a Git hook you host.

    6,128 stars in the catalog

  2. 2

    Tolgee

    Apache-2.0 localization platform (skip ee/) — /compare/weblate-vs-tolgee.

    When to pick it: In-context keys if that is the shape.

    4,139 stars in the catalog

  3. 3

    LibreTranslate

    AGPL-3.0 MT API already on /replace/deepl. Not a CAT desk.

    When to pick it: Translate a string, not a project of translators.

    17,172 stars in the catalog

  4. 4

    LanguageTool

    LGPL grammar checker already on /replace/grammarly. Not localization.

    When to pick it: Grammar, not Crowdin strings.

    15,174 stars in the catalog

How they compare

ToolLicenseSelf-hostBest for
WeblateGNU General Public License v3.0MediumStrings, translators, and a Git hook you host.
TolgeeApache License 2.0MediumIn-context keys if that is the shape.
LibreTranslateGNU Affero General Public License v3.0EasyTranslate a string, not a project of translators.
LanguageToolGNU Lesser General Public License v2.1EasyGrammar, not Crowdin strings.

Related pages

FAQ

Weblate or Tolgee?
Weblate if you want the published Crowdin path (Git). Tolgee if you want Apache-2.0 and will skip ee/ — /compare/weblate-vs-tolgee.
Is this DeepL?
An MT API stays on /replace/deepl (LibreTranslate). This page is a localization desk.
Are these free?
Weblate is GPL-3.0. Tolgee's default tree is Apache-2.0 if you skip ee/. LibreTranslate is AGPL-3.0. You pay hosting. Template users never pay c17.
How do I deploy it?
Open /stacks/weblate-i18n. Persist the database. Import one component.

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