AI-Powered JSON Translation Tool

Translate JSON Files Online with Structure Preservation

Translate JSON Online
json translator online

JSON Language Translator for Developers and Localization Teams

Translate JSON values online without breaking file structure or syntax

Manual JSON translation creates hours of tedious work and introduces syntax errors that break applications. The online JSON translator uses intelligent parsing to distinguish between translatable content and structural elements. The AI scans each JSON object, identifies human-readable strings, and translates only the values while leaving all keys, arrays, numbers, and booleans untouched. This produces valid, ready-to-use JSON translation files for internationalization (i18n) workflows. Developers can auto translate JSON files for mobile apps, web platforms, API responses, and configuration files in over 100 languages. The service maintains nested hierarchies, preserves escape characters, and validates output syntax to prevent runtime errors. Each JSON file translation online is secured with enterprise encryption and processed according to GDPR standards.

translate json file online free

How it Works

Three steps to translate a JSON file

Upload JSON

Upload a JSON file to the i18n JSON translator online. The tool accepts localization files, API schemas, config objects, and nested language resources in standard JSON format.

Select Target Language

Choose a destination language from 100+ supported options. The JSON translate online engine parses the structure, isolates string values, and applies contextual translation while preserving syntax.

Download Valid JSON

Receive a syntactically correct JSON translation file ready for immediate integration. All keys, data types, indentation, and nesting remain identical to the source for error-free deployment.

Features

Core capabilities of the JSON translation tool

i18n translate json file

Structure-Aware Parsing

Syntax Validation

Key Preservation

Nested Object Support

Escape Character Handling

Bulk Translation Support

What makes our JSON translator different?

translate json values online

Value-Only Translation

Copying JSON into a generic translation tool changes keys, breaks arrays, and corrupts data types. Our JSON translator recognizes the difference between structural elements and translatable strings. Only human-readable content inside string values is modified, so every key name, boolean, number, and null value stays exactly as defined in the original schema.

Nested Hierarchy Mapping

Real-world JSON files contain multi-level objects with arrays inside objects and objects inside arrays. The JSON language translator recursively traverses each branch of the data tree, maintaining parent-child relationships and index positions. This prevents key collisions and translated strings appear in the correct location within deeply nested structures.

Automatic Syntax Validation

A single misplaced comma or unclosed bracket renders an entire JSON file useless. After translation, the tool validates output against the JSON specification, checking for balanced braces, proper quote escaping, and correct comma placement. Any detected syntax issue is flagged before download, preventing deployment of broken localization files.

i18n-Ready Output

Internationalization frameworks like react-i18next, vue-i18n, and Angular i18n require specific JSON structures for language switching. The online json translator maintains key naming conventions, handles interpolation placeholders, and preserves formatting tokens used by popular i18n libraries. Translated files integrate directly into build pipelines without post-processing.

Secure Code Processing

JSON files often contain API keys, configuration secrets, or proprietary business logic. The translation service encrypts uploads in transit and at rest, never logs file contents, and deletes processed data immediately after download. Unlike public translation APIs, no source code is retained or used for model training.

High-Volume Batch Processing

Localizing an application requires translating dozens of JSON files across multiple languages. The tool handles batch uploads, processing entire directories of language resources in parallel. This reduces a multi-day manual task to minutes, accelerating release cycles for global product launches.

Common use cases to auto translate JSON files

Mobile and web applications store UI strings in JSON files to enable language switching. Each screen label, button text, error message, and tooltip lives in a separate key-value pair. Translating these files manually for iOS, Android, React, Vue, or Flutter apps consumes weeks of developer time.

The i18n JSON translator online automates this workflow by processing entire language bundles at once. Developers upload the English en.json file and receive localized fr.json, es.json, de.json, and dozens of other language files with matching key structures. This eliminates manual copy-paste errors and keeps UI consistency across all supported locales.

REST APIs and GraphQL backends return JSON responses that include user-facing messages, status descriptions, and validation errors. When an API serves international clients, these messages need localization while maintaining the same response schema for client applications.

Translating API response templates with the JSON translate language tool preserves field names, HTTP codes, and data structure while converting only the message content. Backend teams can maintain a single source of truth for API contracts across languages, reducing client-side parsing bugs and consistent error handling in multilingual deployments.

Software configuration files stored as JSON often include descriptions, help text, or admin panel strings that need translation for international teams. Manually editing these files risks introducing syntax errors that break application startup or CI/CD pipelines.

The json file translation online service allows DevOps and product teams to localize config documentation safely. It translates comments and labels while leaving technical parameters like URLs, port numbers, and feature flags unchanged. This makes software accessible to non-English-speaking administrators without requiring deep JSON editing knowledge.

json translate free use cases

Pricing

Free trial available with no credit card required

Lite

$9 / mo
  • 400.000 characters per month
  • Structure-preserving translation
  • Syntax validation
  • 100+ language support
Free Trial

Starter

$19 / mo
  • 1.000.000 characters per month
  • Structure-preserving translation
  • Syntax validation
  • 100+ language support
Free Trial

Business

$49 / mo
  • 3.000.000 characters per month
  • Unlimited team members
  • Batch processing
  • Priority support
Free Trial
Save 25%

Yearly

$169 / year
  • 12.000.000 characters per year
  • Unlimited team members
  • Batch processing
  • Priority support
Free Trial

F.A.Q

Frequently Asked Questions

Upload the JSON file to our online JSON translator. The tool parses the structure to identify translatable string values, applies AI translation, and rebuilds the file with identical keys, nesting, and data types. The output is validated against JSON specifications before download to prevent syntax errors.

All keys, booleans, numbers, arrays, and object hierarchies remain unchanged. The JSON translate online engine only modifies the content of string values. The translated file maintains compatibility with applications expecting specific key names and data structures.

Yes. The i18n JSON translator online is designed for app internationalization workflows. It processes language resource files for iOS, Android, React Native, Flutter, and web frameworks while preserving interpolation placeholders and formatting tokens used by i18n libraries.

The service uses end-to-end encryption for uploads and processing. Files are deleted immediately after download, and content is never logged or used for model training. The infrastructure is GDPR-compliant with data processing in EU-based servers, making it safe for sensitive source code and configuration files.

The JSON translation tool handles standard JSON with any level of nesting, including arrays of objects, objects within arrays, and mixed data types. It supports language resource files, API response templates, configuration objects, and i18n bundles from frameworks like react-i18next, vue-i18n, and Angular i18n.

The free JSON translator supports over 100 languages, covering all major global markets and regional dialects. This includes European languages, Asian character sets, right-to-left scripts like Arabic and Hebrew, and widely used regional languages for comprehensive app localization.

Yes. After translating JSON values online, the output is checked against JSON specification for balanced brackets, proper comma placement, correct quote escaping, and valid data types. Any syntax issues are flagged before file download to prevent integration errors.

The JSON translator free tool supports batch processing, allowing upload of a single source file and selection of multiple target languages. The system generates separate translated JSON files for each language simultaneously, streamlining large-scale localization projects.

Small to medium JSON files (under 500 keys) typically process in under 30 seconds. Larger language resource bundles with thousands of string values may take 2-3 minutes. Processing time scales with the number of translatable strings, not file size, since structural elements are skipped.

No coding skills are required. The interface is designed for product managers and localization specialists. Upload a file, select target languages, and download the results. The tool handles all technical aspects of parsing, validation, and structure preservation automatically.