Weblate is a libre continuous localization platform for software projects. It sits on top of version control: source strings sync from repositories, translators work in a web editor backed by translation memory and machine translation, and completed translations return through the same version control flow. Teams either run it on their own infrastructure or use the Hosted Weblate service.[1][2]
Quick verdict
Weblate is a GPL-3.0 licensed continuous localization platform that teams self-host via Docker or a Python package, or consume through the Hosted Weblate service. It keeps translations synchronized with Git repositories across GitHub, GitLab, Gitea, and Bitbucket, and supports translators with memory, glossary, machine translation, and a REST API. Its official migration guide documents moving from Crowdin and Lokalise, making it a concrete self-hosted replacement path.[1][2][3]
Capabilities
Weblate integrates tightly with version control, including Git, GitHub, GitLab, Gitea, and Bitbucket, so translation work follows the same branching and merge flow as code.[1]
Translators get translation memory, a shared glossary, and machine translation suggestions inside the web editor, plus language statistics to track coverage.[1][2]
A full REST API with Python client and command-line tools supports automation around translation projects, components, and strings.[1]
Broad translation file format support covers bilingual and monolingual formats and intermediate language files, with built-in quality checks and add-ons for review workflows.[1][2]
Good fit
Software teams whose source strings already live in Git fit well: translations stay synchronized with development instead of becoming a release-time export and import chore.[1][2]
Open-source projects and self-hosting teams fit well: the GPL-licensed codebase runs on operator infrastructure, and libre projects can additionally use the hosted service.[1]
Limitations
Self-hosting means operating a service: updates, backups, and mail delivery are the operator's job, so teams that want zero operations overhead must use the hosted service instead.[1]
Migration has a real cost even with documented importers: translation memory, screenshots, and workflow habits need verification after moving from an incumbent platform.[1]
Compatibility
Repository compatibility spans Git hosting providers GitHub, GitLab, Gitea, and Bitbucket, keeping existing code hosting in place while localization moves to Weblate.[1]
File compatibility spans the documented format catalogue, so existing translation files can be brought in without converting to a proprietary container first.[1]
Migration compatibility covers Crowdin: the official migration guide documents importing Crowdin projects with translations, screenshots, and translation memory for teams moving to self-hosted Weblate.[1]
Migration compatibility also covers Lokalise through a documented import path in the same official migration guide.[1]
Questions worth asking
Is Weblate free and open source?
Can Weblate be self-hosted?
Yes. The official homepage offers a Docker image and a Python package for running Weblate on your own infrastructure, alongside the Hosted Weblate service.[1]
Can Weblate replace Crowdin?
Weblate documents migration from Crowdin, including importing projects with translations, screenshots, and translation memory, so teams can move an existing Crowdin workflow onto Weblate.[1]
Does Weblate provide an API for automation?
Yes. The official documentation describes a full REST API for managing translation work, with client tooling around it.[1]
Sources and editorial review
Source research. Reviewed on October 13, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.
We have not run or tested this product.
- Weblate - libre continuous localization
official · Observed October 13, 2026
Observed the official homepage positioning, self-hosting options, integrations, and feature set for this assessment.
- WeblateOrg/weblate on GitHub
official · Observed October 13, 2026
Observed the official repository identity, description, license signal, and stack topics for this assessment.
- Weblate basics - official documentation
official · Observed October 13, 2026
Observed the official documentation introduction covering continuous localization structure and feature areas for this assessment.
- Migration overview - official documentation
official · Observed October 13, 2026
Observed the official migration guide covering moves from Crowdin and Lokalise for this assessment.
- Supported file formats - official documentation
official · Observed October 13, 2026
Observed the official supported-format catalogue evidencing format breadth for this assessment.