Crowdin vs Weblate
Proprietary cloud scale against libre, git-native localization.
Crowdin and Weblate are the two platforms most open-source projects end up choosing between, and both have earned it. Crowdin offers a free licence to open-source projects and a polished cloud product with a huge integrations marketplace. Weblate is libre software released under the GPLv3 or later, available as Hosted Weblate or on your own servers, with a gratis Libre plan for public open-source projects.
Beyond licensing, they disagree about where translations live. Weblate treats your git repository as the source of truth: it pulls changes, commits translations and pushes them back. Crowdin keeps translations in its own platform and syncs files to your repository through pull requests, with an optional CDN for over-the-air delivery.
At a glance
Choose Weblate if you want open-source software you can self-host, and a workflow where every translation is a real git commit. Choose Crowdin if you want a managed service with a large app marketplace, over-the-air delivery for mobile and JavaScript apps, and no servers to run.
Crowdin vs Weblate, side by side
How the two platforms differ on the questions that decide most evaluations.
| Aspect | Crowdin | Weblate |
|---|---|---|
| Hosting | Cloud service; Crowdin Enterprise lets you choose US or EU data hosting | Hosted Weblate in the cloud, or self-hosted for free, with optional paid support |
| Open source | Closed platform; open-source CLI and mobile SDKs. Free licence for open-source projects on request | Fully open source under GPLv3+. Gratis Libre hosting plan for public libre projects |
| Pricing model | Driven mainly by hosted words, with unlimited translators on paid plans; free start and trial | Hosted plans driven by hosted strings, with unlimited projects and translators; free trial. Self-hosting is free |
| How translations reach production | Git sync opens pull requests from an l10n branch; CLI and API; OTA via CDN for mobile and JavaScript | Commits translations to its copy of your repository and pushes upstream or opens pull requests; translations ship with your deploy |
| Integrations | 700+ apps and integrations | Git, Mercurial and Subversion; pull requests on GitHub, GitLab, Gitea, Bitbucket, Azure DevOps and more |
| Machine translation & AI | Google, Microsoft, DeepL and Amazon engines, plus Crowdin AI | A long list of MT services including DeepL, Google, Amazon, Azure, LibreTranslate and ModernMT, plus LLM backends such as OpenAI, Mistral and Ollama |
| Best for | Teams that want a managed, integration-rich platform | Teams that want open source, self-hosting and git as the source of truth |
Hosting
Crowdin: Cloud service; Crowdin Enterprise lets you choose US or EU data hosting
Weblate: Hosted Weblate in the cloud, or self-hosted for free, with optional paid support
Open source
Crowdin: Closed platform; open-source CLI and mobile SDKs. Free licence for open-source projects on request
Weblate: Fully open source under GPLv3+. Gratis Libre hosting plan for public libre projects
Pricing model
Crowdin: Driven mainly by hosted words, with unlimited translators on paid plans; free start and trial
Weblate: Hosted plans driven by hosted strings, with unlimited projects and translators; free trial. Self-hosting is free
How translations reach production
Crowdin: Git sync opens pull requests from an l10n branch; CLI and API; OTA via CDN for mobile and JavaScript
Weblate: Commits translations to its copy of your repository and pushes upstream or opens pull requests; translations ship with your deploy
Integrations
Crowdin: 700+ apps and integrations
Weblate: Git, Mercurial and Subversion; pull requests on GitHub, GitLab, Gitea, Bitbucket, Azure DevOps and more
Machine translation & AI
Crowdin: Google, Microsoft, DeepL and Amazon engines, plus Crowdin AI
Weblate: A long list of MT services including DeepL, Google, Amazon, Azure, LibreTranslate and ModernMT, plus LLM backends such as OpenAI, Mistral and Ollama
Best for
Crowdin: Teams that want a managed, integration-rich platform
Weblate: Teams that want open source, self-hosting and git as the source of truth
Where they really differ
Git as the source of truth
Weblate’s continuous localization model is simple to reason about: it fetches your repository on a webhook or a schedule, translators work in the web interface, Weblate commits their work and pushes it upstream, optionally only after review. Add-ons squash commits, clean up files or run automatic translation. Crowdin also syncs with GitHub, GitLab and Bitbucket, opening pull requests from a service branch, but the platform rather than the repository is where translations are managed. Teams that review everything as code tend to prefer Weblate’s model; teams that want translators insulated from git tend to prefer Crowdin’s.
Running it yourself
Self-hosting Weblate gives you full control over data, upgrades and integrations, and costs nothing in licences, but someone has to operate the server, the database and the background workers. Hosted Weblate removes that work and is priced by hosted strings. Crowdin is a managed cloud service, so there is nothing to operate or upgrade. If data residency is the concern rather than control, Crowdin Enterprise lets you pick US or EU hosting.
Machine translation choice
Weblate supports an unusually broad set of machine translation services, from DeepL, Google and Amazon to self-hostable engines like LibreTranslate and LLM backends you can run locally with Ollama. That matters for projects that cannot send text to commercial providers. Crowdin focuses on the major commercial engines plus Crowdin AI, which is enough for most teams and simpler to configure.
Choose Crowdin if…
- You want a managed service with no infrastructure to run.
- You need over-the-air updates for iOS, Android, Flutter, React Native or JavaScript apps.
- Your workflow depends on integrations with CMSs, design tools or e-commerce platforms.
- Translators should never need to think about git.
Choose Weblate if…
- You want open-source software under a copyleft licence.
- You need to self-host for control, compliance or cost reasons.
- You want every translation to land as a reviewed git commit.
- You need machine translation that can run on your own infrastructure.
Frequently asked questions
A third option · this is our product
If you are a Laravel team, consider LangSyncer
Weblate and Crowdin both end in a commit or pull request that still waits for your next deploy. If you are a Laravel team, LangSyncer takes a different path: it imports your existing lang files, translates with GPT or DeepL, finds hardcoded strings with a code scanner, and publishes changes to production without a deploy, fully managed so there is nothing to host.