Lezu Docs

Lezu helps teams manage app and website translations through a developer-friendly API.

Use Lezu to import translation files, translate content into multiple languages, publish versioned bundles, and connect localization workflows to your own product, CI pipeline, or admin tools.

Start Here

• Features
• Guides
• API Overview
• API Contracts
• Endpoint Reference
• Status
• I18n JSON Uploads
• File Translation
• Authentication
• Usage and Billing

What You Can Do

• Create translation projects for products, websites, apps, or content collections.
• Organize one product into child projects that share language setup but keep keys and values separate.
• Import nested JSON translation files.
• Upload JSON files directly.
• Translate missing content into one or many target languages.
• Review and publish release bundles for your apps.
• Fetch published bundles from runtime clients.
• Track translation usage before and after work runs.
• Use API keys to automate localization from your own systems.

How Lezu Fits Into Your Workflow

1. Create a project with your source language.
2. Import your existing translation JSON.
3. Choose target languages.
4. Translate missing values.
5. Publish a release.
6. Fetch localized bundles from your app.

Lezu does not charge for how you organize your localization setup. Projects, keys, locales, and environments are part of your workflow. Translation usage is measured when Lezu performs translation work.

Common Paths

• Start with Projects, Locales, Keys, and Values for parent/child project structure.
• Follow the Quickstart for a complete first workflow.
• Import existing files with I18n JSON Imports.
• Automate translation with AI Translation.
• Ship translations with Releases and Bundles.
• Manage automation credentials with Authentication and API Keys.